Company lists · Data refreshed September 2026

Top 22 Regulatory compliance firms based in Washington, United States

RevenueBase identified 49 regulatory compliance firms headquartered in Washington, United States as of September 2026 and tracks 834 professional contacts across them, including 228 with verified work emails. New York is the largest hub.

This list covers regulatory compliance firms headquartered in Washington, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
49Companies
834Contacts tracked
228Verified emails
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The 22 largest regulatory compliance firms based in Washington, United States

Ranked by team size
Top 22 of 49 regulatory compliance firms based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to regulatory compliance firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 2026501-1,000403 contacts →

Partial evidence

“IBM Promontory is a global leader in strategy, risk management, and compliance consulting.#IBMConsulting”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 202611-5090 contacts →

Partial evidence

“CFS Compliance is your one stop shop for all your compliance needs.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 202651-20053 contacts →

Partial evidence

“We provide superior compliance services to the political and non-profit communities by combining modern business principles, technology, and top-notch customer service with…”

Source: RevenueBase Database · checked Sep 21, 2026
4Strong evidenceWashington, DC, United StatesHQ checked Sep 21, 202651-20052 contacts →

Strong evidence

“Asurity delivers compliance-driven technology and advisory solutions that empower financial institutions to confidently navigate a complex regulatory landscape while driving…”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceWashington, DC, United StatesHQ checked Sep 21, 20261-1022 contacts →

Indirect evidence

“FY Consulting | ISO & Cybersecurity Consultants ISO 9001 · ISO 27001 · AS9100 · ISO 13485 · CMMC · NIST 800-171 We build management systems around real business processes, not…”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 202611-5019 contacts →

Partial evidence

“We provide the highest quality compliance services to federal, state, and local political committees, corporate PACs, and nonprofit entities.”

Source: RevenueBase Database · checked Sep 21, 2026
7Strong evidenceWashington, DC, United StatesHQ checked Sep 21, 202651-20017 contacts →

Strong evidence

“The Weinberg Group, a ProPharma Group company, is the global leader in regulatory and compliance services, with headquarters in Washington, D.C.”

Source: RevenueBase Database · checked Sep 21, 2026
8Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 202611-5015 contacts →

Partial evidence

“Katz Compliance offers an unmatched breadth and depth of experience in the compliance industry.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 202611-5014 contacts →

Partial evidence

“When it comes to compliance, companies that know better, do better.”

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 20261-1012 contacts →

Partial evidence

“The National Society of Compliance Professionals is a nonprofit, membership organization dedicated to serving and supporting the compliance professional in the financial services…”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceWashington, DC, United StatesHQ checked Sep 21, 202611-5010 contacts →

Indirect evidence

“The Wright Way Enterprises (TWW) is certified as an SBA 8(a) and HUBZone small business and DC Certified Business Enterprise (CBE), stewarding organizations in addressing the…”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 20261-109 contacts →

Partial evidence

“Bee Compliance was launched in April 2020, with the goal of providing accessible, client focused compliance services to democratic and progressive organizations and candidates.”

Source: RevenueBase Database · checked Sep 21, 2026
13Strong evidenceWashington, DC, United StatesHQ checked Sep 21, 202611-506 contacts →

Strong evidence

“OUR MISSION:" To promote organizational culture that encourages a commitment to local, state, and federal regulatory compliance" info@arcglobalteam.com 1-833-TEAM ARC…”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceWashington, DC, United StatesHQ checked Sep 21, 202611-505 contacts →

Indirect evidence

“Wilson Consulting Group is an innovative global cybersecurity consulting firm headquartered in Washington D.C, with a European office in London, England.”

Source: RevenueBase Database · checked Sep 21, 2026
15Strong evidenceWashington, DC, United StatesHQ checked Sep 21, 202611-505 contacts →

Strong evidence

“At ConsultVisory, we specialize in navigating the intricate landscape of Regulatory Compliance, Finance & Accounting Services, Strategic Marketing, Information & Technology…”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 20261-103 contacts →

Partial evidence

“MANTID INTERNATIONAL LLC is a compliance and business intelligence consulting firm.”

Source: RevenueBase Database · checked Sep 21, 2026
17Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 20261-103 contacts →

Partial evidence

Compliance Systems Legal Group (CSLG) was a boutique law firm that focused exclusively on corporate compliance, ethics and governance.”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 20261-102 contacts →

Partial evidence

“RSS Group offers consulting services customized to help our clients navigate the complex regulatory policy landscape.”

Source: RevenueBase Database · checked Sep 21, 2026
19Strong evidenceWashington, DC, United StatesHQ checked Sep 21, 20261-101 contacts →

Strong evidence

“The Broadband Law Group (BBLG) is a preeminent boutique compliance law firm with more than 25 years experience in regulatory compliance, appeals and audits, grants management and…”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceWashington, United StatesHQ checked Sep 21, 20261-101 contacts →

Indirect evidence

“VISION: Our vision is to make my clients grow by providing pure services that produce rich and healthy outcomes.”

Source: RevenueBase Database · checked Sep 21, 2026
21Strong evidenceWashington, DC, United StatesHQ checked Sep 21, 20261-101 contacts →

Strong evidence

“Through his law practice and its focus on all areas of financial crime compliance, Bradley assists financial institutions facing regulatory enforcement actions, seeking to get…”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceWashington, DC, United StatesHQ checked Sep 21, 20261-101 contacts →

Partial evidence

“At SeldenLindeke, our mission is to deliver the most effective regulatory legal advice to our clients, underpinned by the unique expertise of our team.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 22 of 49 regulatory compliance firms based in Washington, United States

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Regulatory compliance firms based in Washington, United States at a glance

As of Sep 21, 2026
27.3%Verified-email coverage
17.0Average contacts per company
1-10Median size (employees)
277.6%Largest-city concentration · New York
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
31
11-50
12
51-200
5
501-1,000
1

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 49 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among regulatory compliance firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Washington, United States whose own description of what they do matches “regulatory compliance firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names regulatory compliance firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among regulatory compliance firms, and records with no verified work email. Companies headquartered outside Washington are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 228 across the full list. 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.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names regulatory compliance firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many regulatory compliance firms are there based in Washington, United States?

RevenueBase identified 49 regulatory compliance firms headquartered in Washington, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

IBM Promontory, headquartered in Washington, tops this list with the largest team on record.

Which city has the most regulatory compliance firms?

New York leads with 136 headquartered companies, followed by Houston (58) and Washington (49).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 228 verified decision-maker contacts tracked across these 49 companies.

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.

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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 Smart Search, 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.