Company lists · Data refreshed September 2026

Top 25 Industry standards consulting firms based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,549 companies tracked

RevenueBase identified 1,549 industry standards consulting firms headquartered in the United States as of September 2026 and tracks 15,182 professional contacts across them, including 4,953 with verified work emails. Houston is the largest hub.

This list covers industry standards 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 28, 2026 86% judged on-target in blind review

1,549Companies

15,182Contacts tracked

4,953Verified emails

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The 25 largest industry standards consulting firms based in the United States

Ranked by team size

Top 25 of 1,549 industry standards consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to industry standards 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Sikich	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,688 contacts →
	Partial evidence “Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.” Source: RevenueBase Database · checked Sep 28, 2026
2	Steritech	Strong evidence	Charlotte, NC, United StatesHQ checked Sep 28, 2026	1,001-5,000	815 contacts →
	Strong evidence “For over 30 years, Steritech has been an industry leader and pioneer in providing assessments and consulting solutions to companies drive operational consistency and help…” Source: RevenueBase Database · checked Sep 28, 2026
3	SCS Global Services	Indirect evidence	Emeryville, CA, United StatesHQ checked Sep 28, 2026	201-500	667 contacts →
	Indirect evidence “Scientific Certification Systems, Inc, now doing business as SCS Global Services, is a trusted leader in third-party environmental, sustainability and food quality certification…” Source: RevenueBase Database · checked Sep 28, 2026
4	SSA Consultants	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 28, 2026	n/a	258 contacts →
	Indirect evidence “We are partners and advisors of leading organizations and governments, bound to and inspired by a mission of helping our clients improve their performance.” Source: RevenueBase Database · checked Sep 28, 2026
5	Omnex INC	Indirect evidence	Ann Arbor, MI, United StatesHQ checked Sep 28, 2026	501-1,000	216 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
6	Research Nester Analytics	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	191 contacts →
	Partial evidence “Research Nester is a global consulting firm that works with the most aspirational facilitators to define the future market strategies.” Source: RevenueBase Database · checked Sep 28, 2026
7	Jones Carter	Indirect evidence	Bellaire, TX, United StatesHQ checked Sep 28, 2026	501-1,000	140 contacts →
	Indirect evidence “Looking for Jones\|Carter?” Source: RevenueBase Database · checked Sep 28, 2026
8	Vertical Relevance	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	129 contacts →
	Strong evidence “Vertical Relevance is an industry-focused consulting firm with deep expertise in financial services and additional regulated industries.” Source: RevenueBase Database · checked Sep 28, 2026
9	Risk & Regulatory Consulting LLC	Partial evidence	Farmington, CT, United StatesHQ checked Sep 28, 2026	51-200	122 contacts →
	Partial evidence “Risk & Regulatory Consulting, LLC is a leading, national professional services firm dedicated to providing exceptional consulting services to insurance regulators.” Source: RevenueBase Database · checked Sep 28, 2026
10	SDS Petroleum Consultants	Indirect evidence	Tyler, TX, United StatesHQ checked Sep 28, 2026	51-200	122 contacts →
	Indirect evidence “Welcome to SDS Petroleum Consultants company page In Scott Stovall founded SDS Petroleum Consultants L.L.C.” Source: RevenueBase Database · checked Sep 28, 2026
11	GFA International, INC	Partial evidence	Delray Beach, FL, United StatesHQ checked Sep 28, 2026	51-200	115 contacts →
	Partial evidence “GFA International, Inc.(GFA) is a full-service Engineering consulting organization providing Environmental Consulting, Geotechnical Engineering, Construction Materials Testing…” Source: RevenueBase Database · checked Sep 28, 2026
12	CCI	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 28, 2026	51-200	107 contacts →
	Partial evidence “Code Consultants, Inc.(CCI) is an engineering and consulting firm providing a diverse range of design and consultation services since 1973: Fire protection & life safety code…” Source: RevenueBase Database · checked Sep 28, 2026
13	Engaging Solutions, LLC	Partial evidence	Indianapolis, United StatesHQ checked Sep 28, 2026	51-200	99 contacts →
	Partial evidence “Engaging Solutions is a multi-faceted management consulting firm with the personnel and resources to accomplish everything from high level management and auditing to ground-level…” Source: RevenueBase Database · checked Sep 28, 2026
14	Association Of Executive Search And Leadership Consultants Aesc	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	93 contacts →
	Strong evidence “Since 1959, the Association of Executive Search and Leadership Consultants (AESC) has set the quality standard for the executive search and leadership consulting profession.” Source: RevenueBase Database · checked Sep 28, 2026
15	Issi Information Security Systems International	Partial evidence	Santa Cruz, CA, United StatesHQ checked Sep 28, 2026	51-200	91 contacts →
	Partial evidence “ISSI is a consulting, auditing and marketing services company, providing services to the world's largest hyperscale cloud platform providers and IT companies.” Source: RevenueBase Database · checked Sep 28, 2026
16	Diversified Safety Services, LLC	Partial evidence	Rosedale, MD, United StatesHQ checked Sep 28, 2026	51-200	88 contacts →
	Partial evidence “Diversified Safety Services is a third-party safety consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026
17	Alton Aviation Consultancy	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	85 contacts →
	Partial evidence “Alton Aviation Consultancy has significant experience delivering large, complex consulting engagements for clients in aviation and aerospace.” Source: RevenueBase Database · checked Sep 28, 2026
18	Eagle Certification Group	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 28, 2026	11-50	80 contacts →
	Indirect evidence “Since 1994, EAGLE has built an excellent reputation by providing third party auditing services that are objective and value-added.” Source: RevenueBase Database · checked Sep 28, 2026
19	PRI Certification	Partial evidence	Warrendale, PA, United StatesHQ checked Sep 28, 2026	11-50	78 contacts →
	Partial evidence “At PRI Certification℠, we're committed to protecting what matters by delivering industry-leading certification services across Quality, Data Security, Environmental, and Health &…” Source: RevenueBase Database · checked Sep 28, 2026
20	Occupational Services, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	74 contacts →
	Partial evidence “Occupational Services, Incorporated is a San Diego-based professional consulting firm providing services in the areas of environmental compliance, occupational health and safety…” Source: RevenueBase Database · checked Sep 28, 2026
21	Plexus International	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 28, 2026	51-200	71 contacts →
	Partial evidence “Plexus International is a global leader in providing training, assessment, and consulting services for organizations to attain quality management systems excellence.” Source: RevenueBase Database · checked Sep 28, 2026
22	Buxton Consulting	Indirect evidence	San Ramon, CA, United StatesHQ checked Sep 28, 2026	201-500	69 contacts →
	Indirect evidence “Buxton helps organizations modernize, integrate, secure, support, and staff critical technology environments with confidence.” Source: RevenueBase Database · checked Sep 28, 2026
23	Crittenton Consulting Group, INC	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	69 contacts →
	Partial evidence “Crittenton Consulting Group, Inc.(CCGI) provides exceptional Management Consulting, Information Technology, and Mission Services to Civilian Agencies, DoD, and Law Enforcement…” Source: RevenueBase Database · checked Sep 28, 2026
24	IES Safety, LLC	Partial evidence	Louisville, KY, United StatesHQ checked Sep 28, 2026	201-500	65 contacts →
	Partial evidence “IES Safety, LLC delivers expert occupational safety and health consulting through seasoned professionals who help clients proactively manage risk and maintain regulatory…” Source: RevenueBase Database · checked Sep 28, 2026
25	Newbury Partners	Partial evidence	Frisco, TX, United StatesHQ checked Sep 28, 2026	51-200	61 contacts →
	Partial evidence “Newbury Partners brings years of experience as technology advisors to the Staffing Industry.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: industry standards consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names industry standards consulting firms.
Partial evidence: Its own public description names part of industry standards consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industry standards consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,549 industry standards consulting firms based in the United States

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Industry standards consulting firms based in the United States at a glance

As of Sep 28, 2026

32.6%Verified-email coverage

9.8Average contacts per company

1-10Median size (employees)

4.9%Largest-city concentration · Houston

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,087

11-50

347

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 1,549 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 industry standards 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 the United States whose own description of what they do matches “industry standards 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 industry standards 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 industry standards 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 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, 4,953 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 28, 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.

Industry standards consulting firms by metro

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 industry standards 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 industry standards consulting firms are there based in the United States?

RevenueBase identified 1,549 industry standards 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?

Sikich, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most industry standards consulting firms?

Houston leads with 76 headquartered companies, followed by New York (38) and Los Angeles (28).

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 4,953 verified decision-maker contacts tracked across these 1,549 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 28, 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.