Company lists · Data refreshed October 2026
Top 25 501c3 tax compliance services worldwide
RevenueBase identified 565 company matches for 501c3 tax compliance services worldwide as of October 2026 and tracks 3,954 professional contacts across them, including 700 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers company matches for 501c3 tax compliance services worldwide, 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 October 22, 2026. Country and city lists for 501c3 tax compliance services follow the table.
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 501c3 tax compliance services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 174 contacts → | ||||
Exact match “We provide innovative compliance solutions by embracing complexity and making it simple.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 2 | 77 contacts → | ||||
Exact match “Tax Consulting Services Individual Tax Return Preparation * Electronic Filing * Refund Anticipation Loans * Same Day Refund Anticipation Loans * Refund Anticipation Checks * State…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 3 | 61 contacts → | ||||
Exact match “We provide superior compliance services to the political and non-profit communities by combining modern business principles, technology, and top-notch customer service with…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 4 | 47 contacts → | ||||
Exact match “At BryteBridge, we are on a Mission to Empower dreamers and doers to build organizations that positively impact their communities.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 5 | 43 contacts → | ||||
Exact match “We help nonprofits like yours with their state charitable registrations.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 6 | 36 contacts → | ||||
Exact match “A boutique tax consulting organisation focused on helping its clients comply with the tax laws in letter and in spirit.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 7 | 35 contacts → | ||||
Exact match “AMC – Association Management Consultants, LLC established in 2002 is a leader in effectively and efficiently managing the day to day operations of 501 (c)3 and 501 (c)6…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 8 | 28 contacts → | ||||
Exact match “SJT Group LLC provides a wide range of audit, accounting and consulting services to nonprofit and governmental organizations.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 9 | 21 contacts → | ||||
Exact match “With offices in New York City, Philadelphia and Stamford, Evolved is a fast-growing tax compliance and business advisory firm that serves startups, small businesses, private…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 10 | 21 contacts → | ||||
Exact match “We provide the highest quality compliance services to federal, state, and local political committees, corporate PACs, and nonprofit entities.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 11 | 20 contacts → | ||||
Exact match “Sanders US Tax Services is a tax preparation, consulting and advisory firm for Americans living abroad and for anyone else looking for help when dealing with the US tax system.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 12 | 20 contacts → | ||||
Exact match “S A E | is a Tax and related regulatory compliance, Accounting and business advisory service firm founded by young ex-Big4 entrepreneur with a collaborative support from two…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 13 | 20 contacts → | ||||
Exact match “The only place where one can obtain 2X Cash Flows Tax Compliance No Penalties to Government 3X Profits 10X Revenues Our motto - Business owners should focus on their Businesses…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 14 | 20 contacts → | ||||
Exact match “We are your one-stop financial compliance services team.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 15 | 18 contacts → | ||||
Exact match “DBN Tax is a small firm managed by highly qualified, experienced, former IRS auditors.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 16 | 17 contacts → | ||||
Exact match “Chitwood & Chitwood is a financial services company based out of United States.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 17 | 16 contacts → | ||||
Exact match “US Tax Services for Individuals, Self Employed, Business, Tax Planning, Estimated tax assessment, Amendment, ITIN services, Representation, FBAR.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 18 | 15 contacts → | ||||
Exact match “Hartle & Rees is a reputable and growing tax firm located at Salt Lake City (We are located near the Fashion Place mall at 6600 S).” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 19 | 15 contacts → | ||||
Exact match “BloxTax היא חברה ישראלית למיסוי וליווי משקיעים פרטיים, המשלבת מערכת טכנולוגית להפקת דוחות מס עם שירותי רואי חשבון, הגשה וייצוג מול רשות המסים.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 20 | 15 contacts → | ||||
Exact match “A STAFF SOLUÇÕES é uma empresa especializada em regularização fiscal e cadastral perante órgãos públicos e autarquias.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 21 | 15 contacts → | ||||
Exact match “Simply Accounting Ph, Co.(founded 2013) delivers tax compliance, tax filing, bookkeeping, business registration and computerized accounting system implementation, helping…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 22 | 14 contacts → | ||||
Exact match “Welcome to EasyFiling: Simplifying Company Formation and Tax Compliance for Non-Residents in the USA!” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 23 | 13 contacts → | ||||
Exact match “Olambit is a CA-backed firm of Chartered Accountants, tax professionals, and compliance specialists headquartered in Delhi, with a presence in Bengaluru.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 24 | 12 contacts → | ||||
Exact match “Tax Preparation & Accounting Services.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 25 | 12 contacts → | ||||
Exact match “Spruce Street Compliance is full-service, premier political and nonprofit compliance firm.” Recorded in the RevenueBase company graph · Oct 22, 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 “501c3 tax compliance services”. 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 565 501c3 tax compliance services worldwide
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501c3 tax compliance services worldwide at a glance
As of Oct 22, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for 501c3 tax compliance services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “501c3 tax compliance services” 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. 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 700 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 October 22, 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.
501c3 tax compliance services by location
2 lists · largest firstEvery 501c3 tax compliance services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 “501c3 tax compliance services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many 501c3 tax compliance services are there worldwide?
RevenueBase identified 565 company matches for 501c3 tax compliance services worldwide as of October 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?
Harbor Compliance tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most 501c3 tax compliance services?
The United States leads with 278 companies, followed by India (68). Every 501c3 tax compliance services list by country and city is linked on this page.
Which city has the most 501c3 tax compliance services?
New York leads with 11 company records, followed by Dallas (8) and Houston (8).
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 700 professional contacts with verified work emails tracked across these 565 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 October 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 565 501c3 tax compliance services worldwide. Start with a free account, no credit card.
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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
Company intelligence · public preview
Top 25 501c3 tax compliance services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 565 matching company records for 501c3 tax compliance services worldwide, with 3,954 tracked contacts and 700 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: October 22, 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 501c3 tax compliance services worldwide
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 |  Harbor Complianceharborcompliance.comHQ: Lancaster, PA, United StatesReported employees: 201-500 | Lancaster, PA, United States | 201-500 | Exact match | 174 contacts → |
“We provide innovative compliance solutions by embracing complexity and making it simple.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  R&g Brenner TAX Accountingrgbrenner.comHQ: Valley Stream, NY, United StatesReported employees: 51-200 | Valley Stream, NY, United States | 51-200 | Exact match | 77 contacts → |
“Tax Consulting Services Individual Tax Return Preparation * Electronic Filing * Refund Anticipation Loans * Same Day Refund Anticipation Loans * Refund Anticipation Checks * State…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  MBA Consulting Groupmbacg.comHQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 61 contacts → |
“We provide superior compliance services to the political and non-profit communities by combining modern business principles, technology, and top-notch customer service with…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Brytebridge Nonprofit Solutionsbrytebridge.comHQ: Winter Park, FL, United StatesReported employees: 11-50 | Winter Park, FL, United States | 11-50 | Exact match | 47 contacts → |
“At BryteBridge, we are on a Mission to Empower dreamers and doers to build organizations that positively impact their communities.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Labyrinth, INClabyrinthinc.comHQ: Lancaster, PA, United StatesReported employees: 51-200 | Lancaster, PA, United States | 51-200 | Exact match | 43 contacts → |
“We help nonprofits like yours with their state charitable registrations.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | TAX Compaastaxcompaas.com HQ: Bangalore, IndiaReported employees: 11-50 | Bangalore, India | 11-50 | Exact match | 36 contacts → |
“A boutique tax consulting organisation focused on helping its clients comply with the tax laws in letter and in spirit.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  AMCamc-texas.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 35 contacts → |
“AMC – Association Management Consultants, LLC established in 2002 is a leader in effectively and efficiently managing the day to day operations of 501 (c)3 and 501 (c)6…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  SJT Group LLCsjtgroupcpa.comHQ: Albuquerque, NM, United StatesReported employees: 11-50 | Albuquerque, NM, United States | 11-50 | Exact match | 28 contacts → |
“SJT Group LLC provides a wide range of audit, accounting and consulting services to nonprofit and governmental organizations.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Evolved, LLCevolvedtax.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 21 contacts → |
“With offices in New York City, Philadelphia and Stamford, Evolved is a fast-growing tax compliance and business advisory firm that serves startups, small businesses, private…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Premier Political Compliancepremier-compliance.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 21 contacts → |
“We provide the highest quality compliance services to federal, state, and local political committees, corporate PACs, and nonprofit entities.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Sanders US TAX Servicessandersustax.comHQ: Zurich, SwitzerlandReported employees: 11-50 | Zurich, Switzerland | 11-50 | Exact match | 20 contacts → |
“Sanders US Tax Services is a tax preparation, consulting and advisory firm for Americans living abroad and for anyone else looking for help when dealing with the US tax system.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  S A E TAX & Accounting Servicessaetas.aeHQ: Near Financial Center, United Arab EmiratesReported employees: 1-10 | Near Financial Center, United Arab Emirates | 1-10 | Exact match | 20 contacts → |
“S A E | is a Tax and related regulatory compliance, Accounting and business advisory service firm founded by young ex-Big4 entrepreneur with a collaborative support from two…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Taxlegittaxlegit.com HQ: Dadri, IndiaReported employees: 11-50 | Dadri, India | 11-50 | Exact match | 20 contacts → |
“The only place where one can obtain 2X Cash Flows Tax Compliance No Penalties to Government 3X Profits 10X Revenues Our motto - Business owners should focus on their Businesses…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Rushaan Toefy Financial Servicesrtfs.co.zaHQ: Cape Town, South AfricaReported employees: 1-10 | Cape Town, South Africa | 1-10 | Exact match | 20 contacts → |
“We are your one-stop financial compliance services team.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  DBN TAXdbntax.comHQ: Lehi, UT, United StatesReported employees: 11-50 | Lehi, UT, United States | 11-50 | Exact match | 18 contacts → |
“DBN Tax is a small firm managed by highly qualified, experienced, former IRS auditors.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Chitwood & Chitwoodchitwoods.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 17 contacts → |
“Chitwood & Chitwood is a financial services company based out of United States.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | US Global TAX Filersusglobaltaxfilers.com HQ: Hyderabad, IndiaReported employees: 51-200 | Hyderabad, India | 51-200 | Exact match | 16 contacts → |
“US Tax Services for Individuals, Self Employed, Business, Tax Planning, Estimated tax assessment, Amendment, ITIN services, Representation, FBAR.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Hartle & Rees, LLChrtaxcpa.comHQ: Salt Lake City, UT, United StatesReported employees: 1-10 | Salt Lake City, UT, United States | 1-10 | Exact match | 15 contacts → |
“Hartle & Rees is a reputable and growing tax firm located at Salt Lake City (We are located near the Fashion Place mall at 6600 S).” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Bloxtaxbloxtax.co.ilHQ: Tel Aviv, IsraelReported employees: 11-50 | Tel Aviv, Israel | 11-50 | Exact match | 15 contacts → |
“BloxTax היא חברה ישראלית למיסוי וליווי משקיעים פרטיים, המשלבת מערכת טכנולוגית להפקת דוחות מס עם שירותי רואי חשבון, הגשה וייצוג מול רשות המסים.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Staff Soluçõesstaff.adv.br HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 15 contacts → |
“A STAFF SOLUÇÕES é uma empresa especializada em regularização fiscal e cadastral perante órgãos públicos e autarquias.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Simply Accounting Ph, COsimplyaccountingph.com HQ: Cebu, United StatesReported employees: 11-50 | Cebu, United States | 11-50 | Exact match | 15 contacts → |
“Simply Accounting Ph, Co.(founded 2013) delivers tax compliance, tax filing, bookkeeping, business registration and computerized accounting system implementation, helping…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Easyfilingeasyfiling.com HQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 14 contacts → |
“Welcome to EasyFiling: Simplifying Company Formation and Tax Compliance for Non-Residents in the USA!” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Olambitolambit.com HQ: New Delhi, IndiaReported employees: 11-50 | New Delhi, India | 11-50 | Exact match | 13 contacts → |
“Olambit is a CA-backed firm of Chartered Accountants, tax professionals, and compliance specialists headquartered in Delhi, with a presence in Bengaluru.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  TAX House LLPtaxhouse.usHQ: Deerfield Beach, FL, United StatesReported employees: 11-50 | Deerfield Beach, FL, United States | 11-50 | Exact match | 12 contacts → |
“Tax Preparation & Accounting Services.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Spruce Street Compliancesprucestreetcomp.comHQ: Philadelphia, PA, United StatesReported employees: 1-10 | Philadelphia, PA, United States | 1-10 | Exact match | 12 contacts → |
“Spruce Street Compliance is full-service, premier political and nonprofit compliance firm.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 565 company matches
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501c3 tax compliance services: dataset insights
October 22, 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
561 records in the displayed employee bands.
4 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 565 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: October 22, 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 ↗
501c3 tax compliance services by location
2 lists · largest firstEvery 501c3 tax compliance services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for 501c3 tax compliance services?
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 501c3 tax compliance services did RevenueBase find worldwide?
The saved snapshot records 565 matching company records, 3,954 tracked contacts and 700 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: October 22, 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.
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Cite this list
RevenueBase Data Team. Top 25 501c3 tax compliance services worldwide. Snapshot: October 22, 2026. https://revenuebase.ai/companies/browse/501c3-tax-compliance-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 501c3 tax compliance services worldwide
RevenueBase records 565 matching company records for 501c3 tax compliance services worldwide, with 3,954 tracked contacts and 700 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: October 22, 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 501c3 tax compliance services worldwide
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 | Harbor Complianceharborcompliance.com HQ: Lancaster, PA, United StatesReported employees: 201-500 | Lancaster, PA, United States | 201-500 | Exact match | 174 contacts → |
“We provide innovative compliance solutions by embracing complexity and making it simple.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | R&g Brenner TAX Accountingrgbrenner.com HQ: Valley Stream, NY, United StatesReported employees: 51-200 | Valley Stream, NY, United States | 51-200 | Exact match | 77 contacts → |
“Tax Consulting Services Individual Tax Return Preparation * Electronic Filing * Refund Anticipation Loans * Same Day Refund Anticipation Loans * Refund Anticipation Checks * State…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | MBA Consulting Groupmbacg.com HQ: Washington, DC, United StatesReported employees: 51-200 | Washington, DC, United States | 51-200 | Exact match | 61 contacts → |
“We provide superior compliance services to the political and non-profit communities by combining modern business principles, technology, and top-notch customer service with…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Brytebridge Nonprofit Solutionsbrytebridge.com HQ: Winter Park, FL, United StatesReported employees: 11-50 | Winter Park, FL, United States | 11-50 | Exact match | 47 contacts → |
“At BryteBridge, we are on a Mission to Empower dreamers and doers to build organizations that positively impact their communities.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Labyrinth, INClabyrinthinc.com HQ: Lancaster, PA, United StatesReported employees: 51-200 | Lancaster, PA, United States | 51-200 | Exact match | 43 contacts → |
“We help nonprofits like yours with their state charitable registrations.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | TAX Compaastaxcompaas.com HQ: Bangalore, IndiaReported employees: 11-50 | Bangalore, India | 11-50 | Exact match | 36 contacts → |
“A boutique tax consulting organisation focused on helping its clients comply with the tax laws in letter and in spirit.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | AMCamc-texas.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 35 contacts → |
“AMC – Association Management Consultants, LLC established in 2002 is a leader in effectively and efficiently managing the day to day operations of 501 (c)3 and 501 (c)6…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | SJT Group LLCsjtgroupcpa.com HQ: Albuquerque, NM, United StatesReported employees: 11-50 | Albuquerque, NM, United States | 11-50 | Exact match | 28 contacts → |
“SJT Group LLC provides a wide range of audit, accounting and consulting services to nonprofit and governmental organizations.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Evolved, LLCevolvedtax.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 21 contacts → |
“With offices in New York City, Philadelphia and Stamford, Evolved is a fast-growing tax compliance and business advisory firm that serves startups, small businesses, private…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Premier Political Compliancepremier-compliance.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 21 contacts → |
“We provide the highest quality compliance services to federal, state, and local political committees, corporate PACs, and nonprofit entities.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Sanders US TAX Servicessandersustax.com HQ: Zurich, SwitzerlandReported employees: 11-50 | Zurich, Switzerland | 11-50 | Exact match | 20 contacts → |
“Sanders US Tax Services is a tax preparation, consulting and advisory firm for Americans living abroad and for anyone else looking for help when dealing with the US tax system.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | S A E TAX & Accounting Servicessaetas.ae HQ: Near Financial Center, United Arab EmiratesReported employees: 1-10 | Near Financial Center, United Arab Emirates | 1-10 | Exact match | 20 contacts → |
“S A E | is a Tax and related regulatory compliance, Accounting and business advisory service firm founded by young ex-Big4 entrepreneur with a collaborative support from two…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Taxlegittaxlegit.com HQ: Dadri, IndiaReported employees: 11-50 | Dadri, India | 11-50 | Exact match | 20 contacts → |
“The only place where one can obtain 2X Cash Flows Tax Compliance No Penalties to Government 3X Profits 10X Revenues Our motto - Business owners should focus on their Businesses…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Rushaan Toefy Financial Servicesrtfs.co.za HQ: Cape Town, South AfricaReported employees: 1-10 | Cape Town, South Africa | 1-10 | Exact match | 20 contacts → |
“We are your one-stop financial compliance services team.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | DBN TAXdbntax.com HQ: Lehi, UT, United StatesReported employees: 11-50 | Lehi, UT, United States | 11-50 | Exact match | 18 contacts → |
“DBN Tax is a small firm managed by highly qualified, experienced, former IRS auditors.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Chitwood & Chitwoodchitwoods.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 17 contacts → |
“Chitwood & Chitwood is a financial services company based out of United States.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | US Global TAX Filersusglobaltaxfilers.com HQ: Hyderabad, IndiaReported employees: 51-200 | Hyderabad, India | 51-200 | Exact match | 16 contacts → |
“US Tax Services for Individuals, Self Employed, Business, Tax Planning, Estimated tax assessment, Amendment, ITIN services, Representation, FBAR.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Hartle & Rees, LLChrtaxcpa.com HQ: Salt Lake City, UT, United StatesReported employees: 1-10 | Salt Lake City, UT, United States | 1-10 | Exact match | 15 contacts → |
“Hartle & Rees is a reputable and growing tax firm located at Salt Lake City (We are located near the Fashion Place mall at 6600 S).” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Bloxtaxbloxtax.co.il HQ: Tel Aviv, IsraelReported employees: 11-50 | Tel Aviv, Israel | 11-50 | Exact match | 15 contacts → |
“BloxTax היא חברה ישראלית למיסוי וליווי משקיעים פרטיים, המשלבת מערכת טכנולוגית להפקת דוחות מס עם שירותי רואי חשבון, הגשה וייצוג מול רשות המסים.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Staff Soluçõesstaff.adv.br HQ: Sao Paulo, BrazilReported employees: 51-200 | Sao Paulo, Brazil | 51-200 | Exact match | 15 contacts → |
“A STAFF SOLUÇÕES é uma empresa especializada em regularização fiscal e cadastral perante órgãos públicos e autarquias.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Simply Accounting Ph, COsimplyaccountingph.com HQ: Cebu, United StatesReported employees: 11-50 | Cebu, United States | 11-50 | Exact match | 15 contacts → |
“Simply Accounting Ph, Co.(founded 2013) delivers tax compliance, tax filing, bookkeeping, business registration and computerized accounting system implementation, helping…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Easyfilingeasyfiling.com HQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 14 contacts → |
“Welcome to EasyFiling: Simplifying Company Formation and Tax Compliance for Non-Residents in the USA!” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Olambitolambit.com HQ: New Delhi, IndiaReported employees: 11-50 | New Delhi, India | 11-50 | Exact match | 13 contacts → |
“Olambit is a CA-backed firm of Chartered Accountants, tax professionals, and compliance specialists headquartered in Delhi, with a presence in Bengaluru.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | TAX House LLPtaxhouse.us HQ: Deerfield Beach, FL, United StatesReported employees: 11-50 | Deerfield Beach, FL, United States | 11-50 | Exact match | 12 contacts → |
“Tax Preparation & Accounting Services.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Spruce Street Compliancesprucestreetcomp.com HQ: Philadelphia, PA, United StatesReported employees: 1-10 | Philadelphia, PA, United States | 1-10 | Exact match | 12 contacts → |
“Spruce Street Compliance is full-service, premier political and nonprofit compliance firm.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 565 company matches
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501c3 tax compliance services: dataset insights
October 22, 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
561 records in the displayed employee bands.
4 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 565 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: October 22, 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 ↗
501c3 tax compliance services by location
2 lists · largest firstEvery 501c3 tax compliance services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for 501c3 tax compliance services?
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 501c3 tax compliance services did RevenueBase find worldwide?
The saved snapshot records 565 matching company records, 3,954 tracked contacts and 700 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: October 22, 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
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Cite this list
RevenueBase Data Team. Top 25 501c3 tax compliance services worldwide. Snapshot: October 22, 2026. https://revenuebase.ai/companies/browse/501c3-tax-compliance-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗