Company lists · Data refreshed September 2026

Top 12 Compliance and regulatory consulting firms based in Philadelphia, United States

RevenueBase identified 31 compliance and regulatory consulting firms headquartered in Philadelphia, United States as of September 2026 and tracks 211 professional contacts across them, including 92 with verified work emails. Across the United States, New York is the largest hub for this category (192 companies); Philadelphia has 31.

This list covers compliance and regulatory consulting firms headquartered in Philadelphia, 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 27, 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 27, 2026 86% judged on-target in blind review
31Companies
211Contacts tracked
92Verified emails
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The 12 largest compliance and regulatory consulting firms based in Philadelphia, United States

Ranked by team size
Top 12 of 31 compliance and regulatory consulting firms based in Philadelphia, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to compliance and regulatory consulting 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
1Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 2026201-50048 contacts →

Strong evidence

“The INS Companies, a group of regulatory consulting firms, consists of over 200 regulatory professionals dedicated to assisting regulators exclusively since 1987.”

Source: RevenueBase Database · checked Sep 27, 2026
2Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 202611-5035 contacts →

Partial evidence

“For over 30 years, Milligan & Company has assisted Government agencies, Non-Governmental Organizations and private sector clients by performing compliance reviews and providing…”

Source: RevenueBase Database · checked Sep 27, 2026
3Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 202611-5018 contacts →

Indirect evidence

“At Zaviant, we spend time learning the intricacies of our client’s businesses in order to provide the most comprehensive solution possible.”

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 202611-507 contacts →

Indirect evidence

“Looking for best-in-class clinical trial statistical support for your new medical device or drug?”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 202611-507 contacts →

Partial evidence

“4A Security & Compliance (4A) employs a risk management approach to information security and compliance services from security risk assessment, vulnerability assessment…”

Source: RevenueBase Database · checked Sep 27, 2026
6Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 20261-105 contacts →

Partial evidence

“Helping small businesses & minority-owned companies stay secure & compliant | CMMC | SOC2 | HIPAA | Fractional Compliance Officer | Philadelphia I didn't plan on becoming a…”

Source: RevenueBase Database · checked Sep 27, 2026
7Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 20261-105 contacts →

Strong evidence

“Sethi Clarity Advisers is a boutique consulting firm specializing in compliance automation via AI, strategic advice on expanding access to retirement plans and products, and…”

Source: RevenueBase Database · checked Sep 27, 2026
8Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 20261-104 contacts →

Strong evidence

“Accounting and Business Consultants, LLC is a specialized consulting firm providing accounting, internal control, compliance, and auditing related services in the Greater…”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 20261-103 contacts →

Partial evidence

“Boundless helps clients integrate and improve organizational ARCs - Audit, Risk, and Compliance activities - to safeguard reputation and fiduciary integrity.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 20261-102 contacts →

Partial evidence

“Formed in 2012, Bedford and Main Financial Consulting provides consulting services catering to all aspects of the broker-dealer community: Start-up Brokers, Introducing Brokers…”

Source: RevenueBase Database · checked Sep 27, 2026
11Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 20261-102 contacts →

Partial evidence

“Most compliance consultants learned the rules from a textbook.”

Source: RevenueBase Database · checked Sep 27, 2026
12Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 27, 20261-101 contacts →

Strong evidence

“Adaptive Health Sciences is a life sciences consulting firm focusing on the delivery of regulatory affairs, quality assurance, and compliance solutions to improve patient outcomes…”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 12 of 31 compliance and regulatory consulting firms based in Philadelphia, United States

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Compliance and regulatory consulting firms based in Philadelphia, United States at a glance

As of Sep 27, 2026
43.6%Verified-email coverage
6.8Average contacts per company
1-10Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
12
201-500
1

Email recency for this list is measured across the whole United States list rather than for Philadelphia, so it is reported there. Company counts and contact totals on this page are exact for Philadelphia, over 31 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 compliance and regulatory consulting 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 Philadelphia, United States whose own description of what they do matches “compliance and regulatory consulting 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 compliance and regulatory consulting 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 compliance and regulatory consulting firms, and records with no verified work email. Companies headquartered outside Philadelphia 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, 92 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 27, 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 compliance and regulatory consulting 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 compliance and regulatory consulting firms are there based in Philadelphia, United States?

RevenueBase identified 31 compliance and regulatory consulting firms headquartered in Philadelphia, 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?

The INS Companies, headquartered in Philadelphia, tops this list with the largest team on record.

Which city in the United States has the most compliance and regulatory consulting firms?

New York leads the United States with 192 headquartered companies, followed by Washington (93) and Houston (81). Philadelphia has 31.

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 92 verified decision-maker contacts tracked across these 31 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 27, 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.