Company lists · Data refreshed September 2026
Top 25 Tax outsourcing companies based in the United States
RevenueBase identified 8,199 company matches for tax outsourcing companies associated with the United States as of September 2026 and tracks 113,576 professional contacts across them, including 24,785 with verified work emails. New York is the largest hub.
This list covers company matches for tax outsourcing companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest tax outsourcing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 59,451 contacts → | ||||
Exact match “H&R Block’s purpose is simple: To provide help and inspire confidence in our clients and communities everywhere.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 6,089 contacts → | ||||
Exact match “Ryan, an award-winning global tax services and software provider, is the largest Firm in the world dedicated exclusively to business taxes.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 1,379 contacts → | ||||
Exact match “We are Block Advisors by H&R Block.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 861 contacts → | ||||
Exact match “Great Place to Work® Certified™ DMA, a proudly employee-owned company, has been solving corporate tax challenges for its clients since 1972.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 493 contacts → | ||||
Exact match “Sensiba’s comprehensive accounting, tax, and consulting services help businesses and people solve problems, navigate complexity, and build a foundation for sustainable growth.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 413 contacts → | ||||
Exact match “Smith + Howard is a tax, accounting, advisory, and consulting firm headquartered in Atlanta, with a global presence.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 399 contacts → | ||||
Exact match “Originating from the English and Latin roots of “apercu,” an act of insight, and “census,” an applied study of wealth and property, Apercen is a tax consulting firm offering high…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 364 contacts → | ||||
Exact match “Cohesive is a leading solutions provider and systems integrator for IBM Maximo.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 347 contacts → | ||||
Exact match “Advantage One Tax Consulting is a multi-disciplinary group of highly experienced tax professionals who understand the tax practice in its true spirit, examine the issues it faces…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 320 contacts → | ||||
Exact match “1-800Accoutant is America’s leading virtual accounting firm for small businesses.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 320 contacts → | ||||
Exact match “Unison Globus is a global accounting outsourcing and offshore staffing partner dedicated to supporting CPA firms and accounting professionals.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 297 contacts → | ||||
Exact match “Squire is a nationally recognized audit, tax, and business advisory firm serving clients across the U.S.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 281 contacts → | ||||
Exact match “GTM is a leading provider of corporate tax services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 269 contacts → | ||||
Exact match “Growth exposes financial weakness.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 224 contacts → | ||||
Exact match “In operation since 1978, KE Andrews is one of the largest state and local tax firms in the country, managing over $500 billion in assets.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 206 contacts → | ||||
Exact match “Zenwork, through its Tax1099 and Compliancely brands, is a fast-growing digital tax compliance and regulatory reporting technology company, with 10+ years of experience powering…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 168 contacts → | ||||
Exact match “Infinity Globus, a Springline company, is a leading accounting outsourcing firm with over two decades of industry experience, providing tailored taxation and accounting services…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 160 contacts → | ||||
Exact match “We’re a Portland-based accounting firm with a 90+ year legacy, and we’re continuing to grow and evolve every day.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 146 contacts → | ||||
Exact match “Founded in 1947, Funaro & Co.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 146 contacts → | ||||
Exact match “Mize CPAs is now part of Aprio, a Top 25 premier, full-service business advisory and accounting firm that’s passionate for what’s next.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 145 contacts → | ||||
Exact match “Konnect Books & Taxes, is an International Bookkeeping, Tax & Advisory firm, in the USA, with CPAs & Accountants, ready to help you take care of ALL your numbers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 136 contacts → | ||||
Exact match “CrossLink Professional Tax Solutions (CPTS) is a leading provider of professional tax software solutions for professional tax preparers across the United States.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 136 contacts → | ||||
Exact match “Taxwell is a leading digital tax filing platform formed in 2022 from the combination of Drake Software® and TaxAct®.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 121 contacts → | ||||
Exact match “McGill, Power, Bell & Associates, LLP (“MPB”) is a public accounting firm with five Pennsylvania offices located in the cities of Erie, Franklin, Grove City, Meadville, and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 118 contacts → | ||||
Exact match “Since 1985, we’ve built a firm where clients receive the highest quality of services, where our people play an important role as they grow professionally and where we as a firm…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “tax outsourcing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 8,199 tax outsourcing companies based in the United States
See the full list, filter by size, metro and specialty, and access 24,785 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Tax outsourcing companies based in the United States at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 8,199 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United States whose business descriptions match “tax outsourcing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 24,785 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Tax outsourcing companies by metro
- Tax outsourcing companies in New York210
- Tax outsourcing companies in Houston187
- Tax outsourcing companies in Miami98
- Tax outsourcing companies in Chicago88
- Tax outsourcing companies in Atlanta82
- Tax outsourcing companies in Dallas82
- Tax outsourcing companies in Los Angeles78
- Tax outsourcing companies in San Diego71
- Tax outsourcing companies in Austin69
- Tax outsourcing companies in Orlando67
- Tax outsourcing companies in Charlotte52
- Tax outsourcing companies in San Francisco48
- Tax outsourcing companies in Las Vegas45
- Tax outsourcing companies in Tampa42
- Tax outsourcing companies in Phoenix41
- Tax outsourcing companies in San Antonio40
- Tax outsourcing companies in Portland39
- Tax outsourcing companies in Denver38
- Tax outsourcing companies in Columbus37
- Tax outsourcing companies in Jacksonville33
- Tax outsourcing companies in Seattle33
- Tax outsourcing companies in Irvine32
- Tax outsourcing companies in Plano31
- Tax outsourcing companies in San Jose29
- Tax outsourcing companies in Indianapolis27
- Tax outsourcing companies in Glendale25
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “tax outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many tax outsourcing companies are there based in the United States?
RevenueBase identified 8,199 company matches for tax outsourcing companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
H&r Block tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most tax outsourcing companies?
New York leads with 210 company records, followed by Houston (187) and Miami (98).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 24,785 professional contacts with verified work emails tracked across these 8,199 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 8,199 tax outsourcing companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Tax outsourcing companies by geography
- Tax outsourcing companies based in Belo Horizonte, Brazil
- Tax outsourcing companies based in Curitiba, Brazil
- Tax outsourcing companies based in Porto Alegre, Brazil
- Tax outsourcing companies based in Rio De Janeiro, Brazil
- Tax outsourcing companies based in Sao Paulo, Brazil
- Tax outsourcing companies based in Calgary, Canada
- Tax outsourcing companies based in Mississauga, Canada
- Tax outsourcing companies based in Toronto, Canada
- Tax outsourcing companies based in Berlin, Germany
- Tax outsourcing companies based in Dresden, Germany
- Tax outsourcing companies based in Hamburg, Germany
- Tax outsourcing companies based in Hanover, Germany
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
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- Lists by location
- Lists A-Z
- New lists
- Tax outsourcing companies based in Belo Horizonte, Brazil
- Tax outsourcing companies based in Curitiba, Brazil
- Tax outsourcing companies based in Porto Alegre, Brazil
- Tax outsourcing companies based in Rio De Janeiro, Brazil
- Tax outsourcing companies based in Sao Paulo, Brazil
- Tax outsourcing companies based in Calgary, Canada
Company intelligence · public preview
Top 25 tax outsourcing companies based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 8,199 matching company records for tax outsourcing companies based in the United States, with 113,576 tracked contacts and 24,785 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 tax outsourcing companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  H&r Blockhrblock.comHQ: Kansas City, MO, United StatesReported employees: 10001+ | Kansas City, MO, United States | 10001+ | Exact match | 59,451 contacts → |
“H&R Block’s purpose is simple: To provide help and inspire confidence in our clients and communities everywhere.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  RYANryan.comHQ: Dallas, TX, United StatesReported employees: 5,001-10,000 | Dallas, TX, United States | 5,001-10,000 | Exact match | 6,089 contacts → |
“Ryan, an award-winning global tax services and software provider, is the largest Firm in the world dedicated exclusively to business taxes.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Block Advisorsblockadvisors.comHQ: Kansas City, MO, United StatesReported employees: 1,001-5,000 | Kansas City, MO, United States | 1,001-5,000 | Exact match | 1,379 contacts → |
“We are Block Advisors by H&R Block.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  DMAdmainc.comHQ: Fort Wayne, IN, United StatesReported employees: 501-1,000 | Fort Wayne, IN, United States | 501-1,000 | Exact match | 861 contacts → |
“Great Place to Work® Certified™ DMA, a proudly employee-owned company, has been solving corporate tax challenges for its clients since 1972.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Sensiba LLPsensiba.comHQ: San Jose, CA, United StatesReported employees: 501-1,000 | San Jose, CA, United States | 501-1,000 | Exact match | 493 contacts → |
“Sensiba’s comprehensive accounting, tax, and consulting services help businesses and people solve problems, navigate complexity, and build a foundation for sustainable growth.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Smith Howardsmith-howard.comHQ: Atlanta, GA, United StatesReported employees: 501-1,000 | Atlanta, GA, United States | 501-1,000 | Exact match | 413 contacts → |
“Smith + Howard is a tax, accounting, advisory, and consulting firm headquartered in Atlanta, with a global presence.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Apercen Partners LLCapercen.comHQ: Palo Alto, CA, United StatesReported employees: 201-500 | Palo Alto, CA, United States | 201-500 | Exact match | 399 contacts → |
“Originating from the English and Latin roots of “apercu,” an act of insight, and “census,” an applied study of wealth and property, Apercen is a tax consulting firm offering high…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Cohesivecohesivesolutions.comHQ: Exton, PA, United StatesReported employees: 501-1,000 | Exton, PA, United States | 501-1,000 | Exact match | 364 contacts → |
“Cohesive is a leading solutions provider and systems integrator for IBM Maximo.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Advantage ONE TAX Consultingaotax.comHQ: Sterling, VA, United StatesReported employees: 201-500 | Sterling, VA, United States | 201-500 | Exact match | 347 contacts → |
“Advantage One Tax Consulting is a multi-disciplinary group of highly experienced tax professionals who understand the tax practice in its true spirit, examine the issues it faces…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  1-800accountant1800accountant.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 320 contacts → |
“1-800Accoutant is America’s leading virtual accounting firm for small businesses.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Unison Globusunisonglobus.comHQ: Coral Springs, FL, United StatesReported employees: 201-500 | Coral Springs, FL, United States | 201-500 | Exact match | 320 contacts → |
“Unison Globus is a global accounting outsourcing and offshore staffing partner dedicated to supporting CPA firms and accounting professionals.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Squiresquire.comHQ: Orem, UT, United StatesReported employees: 201-500 | Orem, UT, United States | 201-500 | Exact match | 297 contacts → |
“Squire is a nationally recognized audit, tax, and business advisory firm serving clients across the U.S.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | GTM Global TAX Managementgtmtax.com HQ: Wayne, PA, United StatesReported employees: 201-500 | Wayne, PA, United States | 201-500 | Exact match | 281 contacts → |
“GTM is a leading provider of corporate tax services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Mayataxmayatax.comHQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 269 contacts → |
“Growth exposes financial weakness.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  KE Andrewskeatax.comHQ: Dallas, TX, United StatesReported employees: 201-500 | Dallas, TX, United States | 201-500 | Exact match | 224 contacts → |
“In operation since 1978, KE Andrews is one of the largest state and local tax firms in the country, managing over $500 billion in assets.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Zenwork, INCzenwork.comHQ: Fayetteville, AR, United StatesReported employees: 51-200 | Fayetteville, AR, United States | 51-200 | Exact match | 206 contacts → |
“Zenwork, through its Tax1099 and Compliancely brands, is a fast-growing digital tax compliance and regulatory reporting technology company, with 10+ years of experience powering…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Infinity Globus, A Springline Companyinfinity-globus.comHQ: Dallas, TX, United StatesReported employees: 201-500 | Dallas, TX, United States | 201-500 | Exact match | 168 contacts → |
“Infinity Globus, a Springline company, is a leading accounting outsourcing firm with over two decades of industry experience, providing tailored taxation and accounting services…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Geffen Meshergmco.comHQ: Portland, OR, United StatesReported employees: 51-200 | Portland, OR, United States | 51-200 | Exact match | 160 contacts → |
“We’re a Portland-based accounting firm with a 90+ year legacy, and we’re continuing to grow and evolve every day.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Funaro & COfunaro.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 146 contacts → |
“Founded in 1947, Funaro & Co.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Mize Cpas INCmizecpas.comHQ: Topeka, KS, United StatesReported employees: 1,001-5,000 | Topeka, KS, United States | 1,001-5,000 | Exact match | 146 contacts → |
“Mize CPAs is now part of Aprio, a Top 25 premier, full-service business advisory and accounting firm that’s passionate for what’s next.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Konnect Books & Taxes- Virtual CFO & USA TAX Consultantskonnectbooks.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 145 contacts → |
“Konnect Books & Taxes, is an International Bookkeeping, Tax & Advisory firm, in the USA, with CPAs & Accountants, ready to help you take care of ALL your numbers.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Crosslink Professional TAX Solutionscrosslinktax.comHQ: Lathrop, CA, United StatesReported employees: 51-200 | Lathrop, CA, United States | 51-200 | Exact match | 136 contacts → |
“CrossLink Professional Tax Solutions (CPTS) is a leading provider of professional tax software solutions for professional tax preparers across the United States.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Taxwelltaxwell.comHQ: Franklin, NC, United StatesReported employees: 1,001-5,000 | Franklin, NC, United States | 1,001-5,000 | Exact match | 136 contacts → |
“Taxwell is a leading digital tax filing platform formed in 2022 from the combination of Drake Software® and TaxAct®.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Mcgill, Power, Bell & Associates, LLPmpbcpa.comHQ: Meadville, PA, United StatesReported employees: 51-200 | Meadville, PA, United States | 51-200 | Exact match | 121 contacts → |
“McGill, Power, Bell & Associates, LLP (“MPB”) is a public accounting firm with five Pennsylvania offices located in the cities of Erie, Franklin, Grove City, Meadville, and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: La Jolla, CA, United StatesReported employees: 51-200 | La Jolla, CA, United States | 51-200 | Exact match | 118 contacts → |
“Since 1985, we’ve built a firm where clients receive the highest quality of services, where our people play an important role as they grow professionally and where we as a firm…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 8,199 company matches
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Tax outsourcing companies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
8,115 records in the displayed employee bands.
84 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 8,199 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Tax outsourcing companies by metro
- Tax outsourcing companies in New York210
- Tax outsourcing companies in Houston187
- Tax outsourcing companies in Miami98
- Tax outsourcing companies in Chicago88
- Tax outsourcing companies in Atlanta82
- Tax outsourcing companies in Dallas82
- Tax outsourcing companies in Los Angeles78
- Tax outsourcing companies in San Diego71
- Tax outsourcing companies in Austin69
- Tax outsourcing companies in Orlando67
- Tax outsourcing companies in Charlotte52
- Tax outsourcing companies in San Francisco48
- Tax outsourcing companies in Las Vegas45
- Tax outsourcing companies in Tampa42
- Tax outsourcing companies in Phoenix41
- Tax outsourcing companies in San Antonio40
- Tax outsourcing companies in Portland39
- Tax outsourcing companies in Denver38
- Tax outsourcing companies in Columbus37
- Tax outsourcing companies in Jacksonville33
- Tax outsourcing companies in Seattle33
- Tax outsourcing companies in Irvine32
- Tax outsourcing companies in Plano31
- Tax outsourcing companies in San Jose29
- Tax outsourcing companies in Indianapolis27
- Tax outsourcing companies in Glendale25
Questions about this company list
What does Exact match mean for tax outsourcing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many tax outsourcing companies did RevenueBase find based in the United States?
The saved snapshot records 8,199 matching company records, 113,576 tracked contacts and 24,785 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Tax outsourcing companies by geography
- Tax outsourcing companies based in Belo Horizonte, Brazil
- Tax outsourcing companies based in Curitiba, Brazil
- Tax outsourcing companies based in Porto Alegre, Brazil
- Tax outsourcing companies based in Rio De Janeiro, Brazil
- Tax outsourcing companies based in Sao Paulo, Brazil
- Tax outsourcing companies based in Calgary, Canada
- Tax outsourcing companies based in Mississauga, Canada
- Tax outsourcing companies based in Toronto, Canada
- Tax outsourcing companies based in Berlin, Germany
- Tax outsourcing companies based in Dresden, Germany
- Tax outsourcing companies based in Hamburg, Germany
- Tax outsourcing companies based in Hanover, Germany
Cite this list
RevenueBase Data Team. Top 25 tax outsourcing companies based in the United States. Snapshot: September 21, 2026. https://revenuebase.ai/companies/tax-outsourcing-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Tax outsourcing companies based in Belo Horizonte, Brazil
- Tax outsourcing companies based in Curitiba, Brazil
- Tax outsourcing companies based in Porto Alegre, Brazil
- Tax outsourcing companies based in Rio De Janeiro, Brazil
- Tax outsourcing companies based in Sao Paulo, Brazil
- Tax outsourcing companies based in Calgary, Canada
Company intelligence · public preview
Top 25 tax outsourcing companies based in the United States
RevenueBase records 8,199 matching company records for tax outsourcing companies based in the United States, with 113,576 tracked contacts and 24,785 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 21, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 tax outsourcing companies based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | H&r Blockhrblock.com HQ: Kansas City, MO, United StatesReported employees: 10001+ | Kansas City, MO, United States | 10001+ | Exact match | 59,451 contacts → |
“H&R Block’s purpose is simple: To provide help and inspire confidence in our clients and communities everywhere.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | RYANryan.com HQ: Dallas, TX, United StatesReported employees: 5,001-10,000 | Dallas, TX, United States | 5,001-10,000 | Exact match | 6,089 contacts → |
“Ryan, an award-winning global tax services and software provider, is the largest Firm in the world dedicated exclusively to business taxes.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Block Advisorsblockadvisors.com HQ: Kansas City, MO, United StatesReported employees: 1,001-5,000 | Kansas City, MO, United States | 1,001-5,000 | Exact match | 1,379 contacts → |
“We are Block Advisors by H&R Block.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | DMAdmainc.com HQ: Fort Wayne, IN, United StatesReported employees: 501-1,000 | Fort Wayne, IN, United States | 501-1,000 | Exact match | 861 contacts → |
“Great Place to Work® Certified™ DMA, a proudly employee-owned company, has been solving corporate tax challenges for its clients since 1972.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sensiba LLPsensiba.com HQ: San Jose, CA, United StatesReported employees: 501-1,000 | San Jose, CA, United States | 501-1,000 | Exact match | 493 contacts → |
“Sensiba’s comprehensive accounting, tax, and consulting services help businesses and people solve problems, navigate complexity, and build a foundation for sustainable growth.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Smith Howardsmith-howard.com HQ: Atlanta, GA, United StatesReported employees: 501-1,000 | Atlanta, GA, United States | 501-1,000 | Exact match | 413 contacts → |
“Smith + Howard is a tax, accounting, advisory, and consulting firm headquartered in Atlanta, with a global presence.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Apercen Partners LLCapercen.com HQ: Palo Alto, CA, United StatesReported employees: 201-500 | Palo Alto, CA, United States | 201-500 | Exact match | 399 contacts → |
“Originating from the English and Latin roots of “apercu,” an act of insight, and “census,” an applied study of wealth and property, Apercen is a tax consulting firm offering high…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Cohesivecohesivesolutions.com HQ: Exton, PA, United StatesReported employees: 501-1,000 | Exton, PA, United States | 501-1,000 | Exact match | 364 contacts → |
“Cohesive is a leading solutions provider and systems integrator for IBM Maximo.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Advantage ONE TAX Consultingaotax.com HQ: Sterling, VA, United StatesReported employees: 201-500 | Sterling, VA, United States | 201-500 | Exact match | 347 contacts → |
“Advantage One Tax Consulting is a multi-disciplinary group of highly experienced tax professionals who understand the tax practice in its true spirit, examine the issues it faces…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | 1-800accountant1800accountant.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 320 contacts → |
“1-800Accoutant is America’s leading virtual accounting firm for small businesses.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Unison Globusunisonglobus.com HQ: Coral Springs, FL, United StatesReported employees: 201-500 | Coral Springs, FL, United States | 201-500 | Exact match | 320 contacts → |
“Unison Globus is a global accounting outsourcing and offshore staffing partner dedicated to supporting CPA firms and accounting professionals.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Squiresquire.com HQ: Orem, UT, United StatesReported employees: 201-500 | Orem, UT, United States | 201-500 | Exact match | 297 contacts → |
“Squire is a nationally recognized audit, tax, and business advisory firm serving clients across the U.S.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | GTM Global TAX Managementgtmtax.com HQ: Wayne, PA, United StatesReported employees: 201-500 | Wayne, PA, United States | 201-500 | Exact match | 281 contacts → |
“GTM is a leading provider of corporate tax services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Mayataxmayatax.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 269 contacts → |
“Growth exposes financial weakness.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | KE Andrewskeatax.com HQ: Dallas, TX, United StatesReported employees: 201-500 | Dallas, TX, United States | 201-500 | Exact match | 224 contacts → |
“In operation since 1978, KE Andrews is one of the largest state and local tax firms in the country, managing over $500 billion in assets.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Zenwork, INCzenwork.com HQ: Fayetteville, AR, United StatesReported employees: 51-200 | Fayetteville, AR, United States | 51-200 | Exact match | 206 contacts → |
“Zenwork, through its Tax1099 and Compliancely brands, is a fast-growing digital tax compliance and regulatory reporting technology company, with 10+ years of experience powering…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Infinity Globus, A Springline Companyinfinity-globus.com HQ: Dallas, TX, United StatesReported employees: 201-500 | Dallas, TX, United States | 201-500 | Exact match | 168 contacts → |
“Infinity Globus, a Springline company, is a leading accounting outsourcing firm with over two decades of industry experience, providing tailored taxation and accounting services…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Geffen Meshergmco.com HQ: Portland, OR, United StatesReported employees: 51-200 | Portland, OR, United States | 51-200 | Exact match | 160 contacts → |
“We’re a Portland-based accounting firm with a 90+ year legacy, and we’re continuing to grow and evolve every day.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Funaro & COfunaro.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 146 contacts → |
“Founded in 1947, Funaro & Co.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Mize Cpas INCmizecpas.com HQ: Topeka, KS, United StatesReported employees: 1,001-5,000 | Topeka, KS, United States | 1,001-5,000 | Exact match | 146 contacts → |
“Mize CPAs is now part of Aprio, a Top 25 premier, full-service business advisory and accounting firm that’s passionate for what’s next.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Konnect Books & Taxes- Virtual CFO & USA TAX Consultantskonnectbooks.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 145 contacts → |
“Konnect Books & Taxes, is an International Bookkeeping, Tax & Advisory firm, in the USA, with CPAs & Accountants, ready to help you take care of ALL your numbers.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Crosslink Professional TAX Solutionscrosslinktax.com HQ: Lathrop, CA, United StatesReported employees: 51-200 | Lathrop, CA, United States | 51-200 | Exact match | 136 contacts → |
“CrossLink Professional Tax Solutions (CPTS) is a leading provider of professional tax software solutions for professional tax preparers across the United States.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Taxwelltaxwell.com HQ: Franklin, NC, United StatesReported employees: 1,001-5,000 | Franklin, NC, United States | 1,001-5,000 | Exact match | 136 contacts → |
“Taxwell is a leading digital tax filing platform formed in 2022 from the combination of Drake Software® and TaxAct®.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Mcgill, Power, Bell & Associates, LLPmpbcpa.com HQ: Meadville, PA, United StatesReported employees: 51-200 | Meadville, PA, United States | 51-200 | Exact match | 121 contacts → |
“McGill, Power, Bell & Associates, LLP (“MPB”) is a public accounting firm with five Pennsylvania offices located in the cities of Erie, Franklin, Grove City, Meadville, and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: La Jolla, CA, United StatesReported employees: 51-200 | La Jolla, CA, United States | 51-200 | Exact match | 118 contacts → |
“Since 1985, we’ve built a firm where clients receive the highest quality of services, where our people play an important role as they grow professionally and where we as a firm…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 8,199 company matches
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Tax outsourcing companies: dataset insights
September 21, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
8,115 records in the displayed employee bands.
84 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 8,199 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 21, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Tax outsourcing companies by metro
- Tax outsourcing companies in New York210
- Tax outsourcing companies in Houston187
- Tax outsourcing companies in Miami98
- Tax outsourcing companies in Chicago88
- Tax outsourcing companies in Atlanta82
- Tax outsourcing companies in Dallas82
- Tax outsourcing companies in Los Angeles78
- Tax outsourcing companies in San Diego71
- Tax outsourcing companies in Austin69
- Tax outsourcing companies in Orlando67
- Tax outsourcing companies in Charlotte52
- Tax outsourcing companies in San Francisco48
- Tax outsourcing companies in Las Vegas45
- Tax outsourcing companies in Tampa42
- Tax outsourcing companies in Phoenix41
- Tax outsourcing companies in San Antonio40
- Tax outsourcing companies in Portland39
- Tax outsourcing companies in Denver38
- Tax outsourcing companies in Columbus37
- Tax outsourcing companies in Jacksonville33
- Tax outsourcing companies in Seattle33
- Tax outsourcing companies in Irvine32
- Tax outsourcing companies in Plano31
- Tax outsourcing companies in San Jose29
- Tax outsourcing companies in Indianapolis27
- Tax outsourcing companies in Glendale25
Questions about this company list
What does Exact match mean for tax outsourcing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many tax outsourcing companies did RevenueBase find based in the United States?
The saved snapshot records 8,199 matching company records, 113,576 tracked contacts and 24,785 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 21, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Tax outsourcing companies by geography
- Tax outsourcing companies based in Belo Horizonte, Brazil
- Tax outsourcing companies based in Curitiba, Brazil
- Tax outsourcing companies based in Porto Alegre, Brazil
- Tax outsourcing companies based in Rio De Janeiro, Brazil
- Tax outsourcing companies based in Sao Paulo, Brazil
- Tax outsourcing companies based in Calgary, Canada
- Tax outsourcing companies based in Mississauga, Canada
- Tax outsourcing companies based in Toronto, Canada
- Tax outsourcing companies based in Berlin, Germany
- Tax outsourcing companies based in Dresden, Germany
- Tax outsourcing companies based in Hamburg, Germany
- Tax outsourcing companies based in Hanover, Germany
Cite this list
RevenueBase Data Team. Top 25 tax outsourcing companies based in the United States. Snapshot: September 21, 2026. https://revenuebase.ai/companies/tax-outsourcing-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Tax outsourcing companies based in Belo Horizonte, Brazil
- Tax outsourcing companies based in Curitiba, Brazil
- Tax outsourcing companies based in Porto Alegre, Brazil
- Tax outsourcing companies based in Rio De Janeiro, Brazil
- Tax outsourcing companies based in Sao Paulo, Brazil
- Tax outsourcing companies based in Calgary, Canada