Company lists · Data verified August 2026

Top 25 Due diligence consulting firms based in the United States

Name: Due diligence consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 372 companies tracked

There are 372 due diligence consulting firms headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 4,543 professional contacts across them, including 2,273 with verified work emails and 2,054 with mobile numbers. New York is the largest hub.

This list covers due diligence 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. Data current as of August 28, 2026.

372Companies

4,543Contacts tracked

2,273Verified emails

2,054Mobile numbers

Unlock all 372 companies Free account · no credit card · 2 minutes

The 25 largest due diligence consulting firms based in the United States

Ranked by team size

Top 25 of 372 due diligence consulting firms based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Riveron	Miami, FL	1,001-5,000	1,145	846
2	Gparency	Howell, NJ	n/a	241	14
3	LCG Advisors	Denver, CO	51-200	177	150
4	Investor Group Services IGS	Boston, MA	51-200	173	77
5	Blue OPS	Minneapolis, MN	51-200	80	63
6	Cretelligent	Gold River, CA	51-200	77	57
7	Blue Heron Research Partners	New York, NY	51-200	76	55
8	Property Solutions INC	Chicago, IL	51-200	67	25
9	Kreller Group	Cincinnati, OH	11-50	62	36
10	LM Consultants	Seattle, WA	51-200	62	27
11	Qualicentric	San Francisco, CA	51-200	60	8
12	Apex Leaders	Boise, ID	51-200	59	30
13	Lender Consulting Services	Buffalo, NY	51-200	53	32
14	Ironsides Advisory	Santa Monica, CA	51-200	49	30
15	Columbia Advisory Group	Dallas, TX	51-200	48	23
16	Floyd Advisory LLC	New York, NY	11-50	42	33
17	Hilton Global Associates INC	San Francisco, CA	51-200	42	29
18	CDS	San Francisco, CA	11-50	37	14
19	Snyder Kearney, LLC	Columbia, MD	11-50	27	21
20	Factright, LLC	Eden Prairie	11-50	22	18
21	SCA Transaction Services LLC	Kansas City, MO	11-50	19	18
22	Asenti Diligence Partners LLC	Corpus Christi, TX	11-50	19	14
23	Targus Associates, LLC	Dallas, TX	11-50	19	13
24	GTG Consultants, INC	New York, NY	11-50	18	17
25	Moore-Mcneil	Nashville, TN	11-50	18	13

Showing 25 of 372 due diligence consulting firms based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,273 reachable decision-makers.

Free account · no credit card

See all 372 companies

Due diligence consulting firms based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 30 HQs

2,054Contacts with mobile numbers

9Emails re-verified in last 30 days

Companies by employee count

1-10

249

11-50

51-200

1,001-5,000

Due diligence consulting firms by metro

Metro	Companies
Due diligence consulting firms in New York	30
Due diligence consulting firms in Chicago	13
Due diligence consulting firms in Washington	12
Due diligence consulting firms in San Francisco	12
Due diligence consulting firms in Atlanta	9
Due diligence consulting firms in Houston	8
Due diligence consulting firms in Miami	8
Due diligence consulting firms in Dallas	6

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “due diligence consulting firms”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 9 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many due diligence consulting firms are there based in the United States?

There are 372 due diligence consulting firms headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Riveron, headquartered in Miami, tops this list with the largest team on record.

Which city has the most due diligence consulting firms?

New York leads with 30 headquartered companies, followed by Chicago (13) and Washington (12).

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 2,273 verified decision-maker contacts tracked across these 372 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 372 due diligence consulting firms based in the United States. Start with a free account, no credit card.

Get the full list

Related lists

Due diligence consulting firms by geography

Browse the directory

Browse: Companies home · All United States lists · All Due diligence consulting firms lists · New lists

About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.