Company lists · Data refreshed September 2026

Top 25 Sales tax outsourcing companies based in the United States

RevenueBase identified 78 company matches for sales tax outsourcing companies associated with the United States as of September 2026 and tracks 1,178 professional contacts across them, including 503 with verified work emails. Dallas is the largest hub.

This list covers company matches for sales 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 29, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built
78Companies
1,178Contacts tracked
503Verified emails
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The 25 largest sales tax outsourcing companies based in the United States

Ranked by team size
Top 25 of 78 company matches for sales tax outsourcing companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSan Francisco, United StatesHQ recorded Sep 29, 202651-200137 contacts →

Exact match

“Anrok is the intelligent tax infrastructure for global businesses.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 202651-200108 contacts →

Exact match

“Sales tax and VAT, solved.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchSan Francisco, United StatesHQ recorded Sep 29, 202651-200105 contacts →

Exact match

“Kintsugi is automating sales tax for every company globally.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 29, 202611-5074 contacts →

Exact match

“Zamp provides real sales tax relief, not just software-we completely handle your sales tax compliance so you don't have to.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchAlpharetta, GA, United StatesHQ recorded Sep 29, 202611-5072 contacts →

Exact match

“TaxConnex® is your UPSOURCED compliance solution.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchAustin, TX, United StatesHQ recorded Sep 29, 202651-20069 contacts →

Exact match

“TaxCloud is a sales tax compliance solution for growing ecommerce and SaaS businesses that combines powerful automation with real human support.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchDenver, CO, United StatesHQ recorded Sep 29, 202651-20061 contacts →

Exact match

“Navigating the labyrinth of sales tax is more than just an annoyance for e-commerce, SaaS, and other online sellers.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchDallas, TX, United StatesHQ recorded Sep 29, 202611-5036 contacts →

Exact match

“The Sales Tax People are trusted advisors for businesses dealing with sales tax complexity.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchSimms, TX, United StatesHQ recorded Sep 29, 202611-5035 contacts →

Exact match

“We are passionate about state tax.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchLos Angeles, CA, United StatesHQ recorded Sep 29, 202611-5035 contacts →

Exact match

“At Sattar & Associates, we provide relevant, timely, and innovative solutions to address the mounting jurisdictional demands in multi-state Sales and Use Tax, and business…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchAtlanta, GA, United StatesHQ recorded Sep 29, 202651-20034 contacts →

Exact match

“Sarus is a highly focused and skilled firm specializing in “Transaction Tax Automation”.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchBoston, MA, United StatesHQ recorded Sep 29, 202651-20021 contacts →

Exact match

“TaxJar was founded in 2013 to help e-commerce companies automate the entire sales tax lifecycle from calculations and nexus tracking to reporting and filing.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 29, 202611-5020 contacts →

Exact match

“Most companies find out they have a sales tax problem the same way: a letter from a state they didn't know they owed tax in.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchSeattle, WA, United StatesHQ recorded Sep 29, 202611-5020 contacts →

Exact match

“DAVO Sales Tax automatically sets your sales tax aside daily using sales data from your POS.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchPasadena, CA, United StatesHQ recorded Sep 29, 20261-1017 contacts →

Exact match

“The Gable Tax Group has over 29 years’ experience in providing sales and use tax compliance and consulting services to small, medium and large companies.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 202651-20017 contacts →

Exact match

“Sphere automates tax compliance for the $200T+ in goods and services sold across borders every year.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchBentonville, AR, United StatesHQ recorded Sep 29, 202611-5014 contacts →

Exact match

“At Sales Tax DataLINK, we are dedicated to delivering a level of excellence that differentiates us from others.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchDeer Park, NY, United StatesHQ recorded Sep 29, 20261-1013 contacts →

Exact match

“Sales Tax Defense LLC is a sales tax consulting firm that provides sales, use and transaction advice to businesses and other professionals.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchExton, PA, United StatesHQ recorded Sep 29, 202611-5012 contacts →

Exact match

“Sales tax compliance continues to be the most burdensome area for e-commerce, multi-channel and digital sellers due to the nexus nuances born out of the 2018 Wayfair decision and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchChicago, IL, United StatesHQ recorded Sep 29, 202611-5010 contacts →

Exact match

“Welcome to YETTER Tax, where we specialize in simplifying the complexities of sales tax compliance for businesses.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchSeattle, WA, United StatesHQ recorded Sep 29, 202611-509 contacts →

Exact match

“LumaTax is part of the Taxually family of products, and our technology simplifies the complexities of Sales and Use Tax.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Sep 29, 20261-109 contacts →

Exact match

“TaxHero delivers an all-in-one sales tax solution for ecommerce and CPG brands.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchHudson Oaks, TX, United StatesHQ recorded Sep 29, 20261-108 contacts →

Exact match

“ZacTax is a web-based sales tax analysis application.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchRaleigh, NC, United StatesHQ recorded Sep 29, 202611-507 contacts →

Exact match

“Galvix is a sales tax compliance platform built for growing businesses tired of filing errors, state penalties, and unreliable support.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchPlymouth Meeting, PA, United StatesHQ recorded Sep 29, 202611-506 contacts →

Exact match

“Innovative Sales Tax Solutions is a sales and use tax consulting firm dedicated to providing first class client service, while focusing on solving the complex sales and use tax…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 78 sales tax outsourcing companies based in the United States

See the full list, filter by size, metro and specialty, and access 503 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sales tax outsourcing companies based in the United States at a glance

As of Sep 29, 2026
42.7%Verified-email coverage
15.1Average contacts per company
1-10Median size (employees)
5.1%Largest-city concentration · Dallas
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
40
11-50
25
51-200
11
10001+
1

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 78 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 “sales 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 503 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 29, 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.

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 “sales tax outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sales tax outsourcing companies are there based in the United States?

RevenueBase identified 78 company matches for sales 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?

ANROK tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most sales tax outsourcing companies?

Dallas leads with 4 company records, followed by Houston (4) and San Francisco (4).

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 503 professional contacts with verified work emails tracked across these 78 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 29, 2026.

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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.