Company lists · Data refreshed September 2026

Top 25 Diversity consulting firms based in Columbus, United States

Name: Diversity consulting firms based in Columbus, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 70 companies tracked

RevenueBase identified 70 diversity consulting firms headquartered in Columbus, United States as of September 2026 and tracks 441 professional contacts across them, including 160 with verified work emails. New York is the largest hub.

This list covers diversity consulting firms headquartered in Columbus, 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

70Companies

441Contacts tracked

160Verified emails

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The 25 largest diversity consulting firms based in Columbus, United States

Ranked by team size

Top 25 of 70 diversity consulting firms based in Columbus, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to diversity 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	Atlas Advisors, LLC	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	201-500	172 contacts →
	Indirect evidence “Founded by a former U.S.” Source: RevenueBase Database · checked Sep 21, 2026
2	Clemans, Nelson & Associates, INC	Partial evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	11-50	40 contacts →
	Partial evidence “Clemans Nelson is the preeminent public sector labor relations and human resource consulting firm in the state of Ohio.” Source: RevenueBase Database · checked Sep 21, 2026
3	MY Business Resource	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	21 contacts →
	Indirect evidence “At My Business Resource, our mission is to empower businesses to build thriving, inclusive, and dynamic workplaces through innovative human resource solutions.” Source: RevenueBase Database · checked Sep 21, 2026
4	Beecherhill	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	11-50	20 contacts →
	Indirect evidence “At BeecherHill, we aspire to be the preeminent consultancy trusted to discover and attract exceptional leaders who elevate purpose-driven organizations.” Source: RevenueBase Database · checked Sep 21, 2026
5	Cmax Advisors	Partial evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial evidence “CMax Advisors is an innovative consulting firm dedicated to helping businesses build strong teams.” Source: RevenueBase Database · checked Sep 21, 2026
6	Kane Learning	Partial evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	11-50	13 contacts →
	Partial evidence “Kane Learning is a boutique consulting firm in central Ohio partnering with clients large and small to develop custom solutions that grow performance.” Source: RevenueBase Database · checked Sep 21, 2026
7	American Negotiation Institute	Partial evidence	Columbus, United StatesHQ checked Sep 21, 2026	11-50	12 contacts →
	Partial evidence “The American Negotiation Institute (ANI) is a global consulting firm that specializes in providing training, coaching and education on applying the foundations of negotiation to…” Source: RevenueBase Database · checked Sep 21, 2026
8	Incompliance	Partial evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “INCompliance Consulting focuses on three primary industries: health care, higher education, and K-12 education.” Source: RevenueBase Database · checked Sep 21, 2026
9	S4 Consulting	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	11-50	8 contacts →
	Indirect evidence “AI Changes the Environment.” Source: RevenueBase Database · checked Sep 21, 2026
10	Tallann Resources, LLC	Partial evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Partial evidence “We are Talent Advisors providing consulting, training, and speaking specifically for the staffing industry and corporate talent acquisition function.” Source: RevenueBase Database · checked Sep 21, 2026
11	Think Rapid	Partial evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	5 contacts →
	Partial evidence “We are a boutique consulting firm known for swiftly providing customized solutions to clients.” Source: RevenueBase Database · checked Sep 21, 2026
12	Professional Consulting Associates, Llc. PCA	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “PCA helps organizations strengthen and elevate their leadership competencies at virtually all levels.” Source: RevenueBase Database · checked Sep 21, 2026
13	Aventi Enterprises	Strong evidence	Columbus, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Strong evidence “Aventi Enterprises, LLC is a for-profit, strategic consulting firm focusing on business expansion and supplier diversity.” Source: RevenueBase Database · checked Sep 21, 2026
14	Kensington Hill Partners	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “From start-up to mature, high-profile companies, Kensington Hill Partners supports all facets of executive leadership and Boards of Directors.” Source: RevenueBase Database · checked Sep 21, 2026
15	Hutchison Consulting, LLC	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “We aim to help organizations assess, select, and develop the best employees and strategies for a high-performing and innovative culture.” Source: RevenueBase Database · checked Sep 21, 2026
16	Reputation Management, LLC	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “Reputation Management Associates, LLC is a nationally-known, Ohio and Florida-based communications firm designed to help clients communicate clearly to a wide variety of…” Source: RevenueBase Database · checked Sep 21, 2026
17	Abundance Leadership Consulting, LLC	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “Are you bleeding talent?” Source: RevenueBase Database · checked Sep 21, 2026
18	OFF Square ONE	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “Off Square One: Transforming Teams, Strategies & Leadership Experiences At Off Square One, we specialize in helping organizations move from where they are now to where they…” Source: RevenueBase Database · checked Sep 21, 2026
19	Rossetti Enterprises LLC	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “I work with professionals achieve & promote inclusive meetings, events, tourism destinations, buildings & offices.” Source: RevenueBase Database · checked Sep 21, 2026
20	Wells Bloomer Gellerstedt	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “We serve clients across many industries and functions, but have developed unique depth in corporate strategy, finacial services, technology and healthcare.” Source: RevenueBase Database · checked Sep 21, 2026
21	Diversified Recruiting	Partial evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Diversified Recruiting is founded on virtues of honesty, credibility, awareness, openness, and creativity.” Source: RevenueBase Database · checked Sep 21, 2026
22	Intelligent Recruiting Resources LLC	Partial evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Intelligent Recruiting Resources LLC Founded in 2004 and based in Columbus, Ohio, we are a Human Resource Consulting and Executive Search firm with a focus on all levels of…” Source: RevenueBase Database · checked Sep 21, 2026
23	Heather Brod LLC	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence “I am an executive coach, consultant, speaker and facilitator primarily to the higher education, healthcare and professional services industries.” Source: RevenueBase Database · checked Sep 21, 2026
24	Mahogany Search Partners	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence “About Us and How We’re Deliberately Different.” Source: RevenueBase Database · checked Sep 21, 2026
25	Adair Consulting LLC	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence “Helping advance organizational culture and climate for sustainable growth by operationalizing concepts of DEIB through strategic planning, employee education, and human resource…” Source: RevenueBase Database · checked Sep 21, 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: diversity 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 diversity consulting firms.
Partial evidence: Its own public description names part of diversity consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name diversity 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 70 diversity consulting firms based in Columbus, United States

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Diversity consulting firms based in Columbus, United States at a glance

As of Sep 21, 2026

36.3%Verified-email coverage

6.3Average contacts per company

1-10Median size (employees)

861.4%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Columbus, so it is reported there. Company counts and contact totals on this page are exact for Columbus, over 70 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 diversity 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 Columbus, United States whose own description of what they do matches “diversity 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 diversity 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 diversity consulting firms, and records with no verified work email. Companies headquartered outside Columbus 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, 160 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.

Diversity consulting firms by metro in the United States

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 diversity 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 diversity consulting firms are there based in Columbus, United States?

RevenueBase identified 70 diversity consulting firms headquartered in Columbus, 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?

Atlas Advisors, LLC, headquartered in Columbus, tops this list with the largest team on record.

Which city has the most diversity consulting firms?

New York leads with 603 headquartered companies, followed by Atlanta (342) and Chicago (342).

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 160 verified decision-maker contacts tracked across these 70 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.