Company lists · Data refreshed September 2026

Top 25 Investment compliance consulting firms based in the United States

RevenueBase identified 1,146 investment compliance consulting firms headquartered in the United States as of September 2026 and tracks 13,091 professional contacts across them, including 5,790 with verified work emails and 6,028 with mobile numbers. New York is the largest hub.

This list covers investment compliance consulting firms headquartered in the 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
1,146Companies
13,091Contacts tracked
5,790Verified emails
6,028Mobile numbers
Unlock all 1,146 companies Free signup · no credit card · 500 free credits

The 25 largest investment compliance consulting firms based in the United States

Ranked by team size
Top 25 of 1,146 investment compliance consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names investment compliance consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1Lancaster, PA, United StatesHQ checked Sep 4, 20261,001-5,0001,763

“DFIN is the leading global provider of compliance and regulatory software and services, fueling end-to-end investment company regulatory compliance needs, complex capital markets…”

Source: company website · checked Sep 4, 2026
2
ACA GroupPartial evidence
New York, NY, United StatesHQ checked Sep 4, 20261,001-5,0001,475

“ACA Group is the leading governance, risk, and compliance advisor to the financial services industry.”

Source: company website · checked Sep 4, 2026
3
SolomonedwardsIndirect evidence
Wayne, PA, United StatesHQ checked Sep 4, 20261,001-5,000566

“For more than 25 years, SolomonEdwards has empowered organizations to tackle common and complex business challenges through strategic advisory, technical advocacy, and hands-on…”

Source: company website · checked Sep 4, 2026
4
ComplyPartial evidence
New York City, NY, United StatesHQ checked Sep 4, 2026201-500299

“At Comply, we pride ourselves on being the champion for compliance professionals.”

Source: company website · checked Sep 4, 2026
5
Stambaugh NessIndirect evidence
York, PA, United StatesHQ checked Sep 4, 2026201-500185

“Stambaugh Ness is a professional services firm serving clients nationally with a singular focus on architecture, engineering, and related industries.”

Source: company website · checked Sep 4, 2026
6
LCG AdvisorsIndirect evidence
Tampa, CO, United StatesHQ checked Sep 4, 202651-200177

“Maximizing Value.”

Source: company website · checked Sep 4, 2026
7
ALM FirstIndirect evidence
Dallas, TX, United StatesHQ checked Sep 4, 202651-200162

“ALM First is a leading, trusted strategic partner for financial advisory services.”

Source: company website · checked Sep 4, 2026
8
Dla, LLCIndirect evidence
Fairfield, NY, United StatesHQ checked Sep 4, 2026201-500161

“DLA, LLC is a leading consultancy firm that provides a wide range of specialized services designed to optimize business operations and drive sustainable growth.”

Source: company website · checked Sep 4, 2026
9
Rvk, INCIndirect evidence
Portland, IL, United StatesHQ checked Sep 4, 202651-200140

“RVK is a national firm with headquarters in Portland, OR and regional offices in Boise, ID; Chicago, IL; and New York, NY.”

Source: company website · checked Sep 4, 2026
10
Soho Square SolutionsStrong evidence
New York, NY, United StatesHQ checked Sep 4, 2026201-500140

“Experts on financial regulatory & compliance, business analysis, project Implementation and delivery for Corporate and Investment Banking, Asset management clients Firm…”

Source: company website · checked Sep 4, 2026
11
Avantax Planning PartnersPartial evidence
Dubuque, ND, United StatesHQ checked Sep 4, 202651-200132

“Advisory Services offered through Avantax Planning Partners, Inc, a registered investment adviser.”

Source: company website · checked Sep 4, 2026
12
Northeast Financial NetworkIndirect evidence
Holmdel, NY, United StatesHQ checked Sep 4, 202611-50125

“Imagine working with a network of financial professionals who understand you and have years of experience in helping you achieve good financial outcomes.”

Source: company website · checked Sep 4, 2026
13Farmington, CT, United StatesHQ checked Sep 4, 202651-200124

“Risk & Regulatory Consulting, LLC is a leading, national professional services firm dedicated to providing exceptional consulting services to insurance regulators.”

Source: company website · checked Sep 4, 2026
14
OutsolvePartial evidence
Metairie, KY, United StatesHQ checked Sep 4, 202651-200116

“Founded in 1998, OutSolve has evolved into a premier compliance-driven HR advisory firm, leveraging deep expertise to simplify complex regulatory landscapes for businesses of all…”

Source: company website · checked Sep 4, 2026
15
Flsv LLPPartial evidence
Garden City, FL, United StatesHQ checked Sep 4, 202651-200110

“Frankel Loughran Starr & Vallone LLP (FLSV), a premier accounting, tax advisory and compliance firm focused primarily in the financial services industry, was formed in 1995 by…”

Source: company website · checked Sep 4, 2026
16
DFP PartnersPartial evidence
New York, MA, United StatesHQ checked Sep 4, 202651-200110

“For over 40 years, DFP Partners has been a committed ally to Broker-Dealers, Registered Investment Advisers, and other financial services firms looking for accounting and…”

Source: company website · checked Sep 4, 2026
17
Bates GroupIndirect evidence
Portland, OR, United StatesHQ checked Sep 4, 202651-200105

“We offer end-to-end solutions for financial services firms and their counsel, providing support throughout the lifecycle of their legal matters.”

Source: company website · checked Sep 4, 2026
18Jersey City, NJ, United StatesHQ checked Sep 4, 202651-20098

“Accume Partners, now part of Cherry Bekaert, is a trusted risk assurance and advisory leader and innovator in delivering integrated solutions to our clients in highly regulated…”

Source: company website · checked Sep 4, 2026
19
Fairview LLCStrong evidence
Raleigh, NC, United StatesHQ checked Sep 4, 202651-20080

“Providing full-service, backend regulatory support services to investment advisers and other financial institutions through five distinct practice areas- Compliance…”

Source: company website · checked Sep 4, 2026
20
Hudson Cook, LLPPartial evidence
Hanover, MD, United StatesHQ checked Sep 4, 202651-20078

“Established in 1997, Hudson Cook, LLP focuses on state and federal consumer and commercial financial services, banking and privacy compliance, regulation, enforcement and…”

Source: company website · checked Sep 4, 2026
21
Oyster Consulting, LLCStrong evidence
Glen Allen, VA, United StatesHQ checked Sep 4, 202651-20073

“Oyster Consulting gives broker dealers, investment advisors and other financial services clients innovative tools to understand, automate, optimize and analyze crucial functions.”

Source: company website · checked Sep 4, 2026
22
Fits ConsultingPartial evidence
Denville, NJ, United StatesHQ checked Sep 4, 202651-20068

“FITS Consulting, is a leading professional consulting firm, specializing in the financial services industry.”

Source: company website · checked Sep 4, 2026
23New York, NY, United StatesHQ checked Sep 4, 202611-5060

“To meet rigorous regulatory expectations and requirements, it is imperative that organizations have access to “best in class” talent that has extensive knowledge of the businesses…”

Source: company website · checked Sep 4, 2026
24Woburn, MA, United StatesHQ checked Sep 4, 2026201-50060

“Control Solutions International is a leading global consulting and risk advisory firm focused on providing our clients with industry experts who specialize in risk management…”

Source: company website · checked Sep 4, 2026
25Powell, OH, United StatesHQ checked Sep 4, 202651-20056

“We are now Acclarity.”

Source: company website · checked Sep 4, 2026

Showing 25 of 1,146 investment compliance consulting firms based in the United States

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Investment compliance consulting firms based in the United States at a glance

As of Sep 4, 2026
1-10Median size (employees)
New YorkLargest hub · 113 HQs
6,028Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
840
11-50
239
51-200
49
201-500
10
501-1,000
1
1,001-5,000
5
5,001-10,000
1

Verified emails by last verification

0–30
0
31–60
494
61–90
3,021
90–180
2,255
180+
20

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 investment compliance consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “investment compliance consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among investment compliance consulting firms, and records with no verified work email. Companies headquartered outside United States 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 an evidence 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, 5,790 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 4, 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.

Investment compliance consulting firms by metro

  • Investment compliance consulting firms in New York113

Frequently asked

How many investment compliance consulting firms are there based in the United States?

RevenueBase identified 1,146 investment compliance consulting firms headquartered in the 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?

Donnelley Financial Solutions Dfin, headquartered in Lancaster, tops this list with the largest team on record.

Which city has the most investment compliance consulting firms?

New York leads with 113 headquartered companies, followed by Miami (24) and Chicago (22).

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 5,790 verified decision-maker contacts tracked across these 1,146 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 4, 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.