Company lists · Data refreshed September 2026

Top 25 Operations research consulting firms based in the United States

Name: Operations research 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 29, 2026 5,019 companies tracked

RevenueBase identified 5,019 operations research consulting firms headquartered in the United States as of September 2026 and tracks 51,381 professional contacts across them, including 17,083 with verified work emails. New York is the largest hub.

This list covers operations research 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 29, 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 29, 2026 86% judged on-target in blind review

5,019Companies

51,381Contacts tracked

17,083Verified emails

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The 25 largest operations research consulting firms based in the United States

Ranked by team size

Top 25 of 5,019 operations research consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to operations research 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	Kearney	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	5,001-10,000	6,978 contacts →
	Partial evidence “As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Source: RevenueBase Database · checked Sep 29, 2026
2	Ardurra	Indirect evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,260 contacts →
	Indirect evidence “Expertly balancing experience and innovation to deliver unique solutions to public and private clients.” Source: RevenueBase Database · checked Sep 29, 2026
3	W3global	Strong evidence	Frisco, TX, United StatesHQ checked Sep 29, 2026	501-1,000	1,149 contacts →
	Strong evidence “W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Source: RevenueBase Database · checked Sep 29, 2026
4	The Vertex Companies LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	501-1,000	765 contacts →
	Partial evidence “The Vertex Companies, LLC is a global consulting firm that provides strategic advisory, project management, and dispute resolution services for organizations that face complex…” Source: RevenueBase Database · checked Sep 29, 2026
5	CAI	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 29, 2026	501-1,000	763 contacts →
	Partial evidence “At CAI, we are a professional services firm designed to accelerate operational readiness and excellence in critical environments.” Source: RevenueBase Database · checked Sep 29, 2026
6	ERG	Partial evidence	Concord, MA, United StatesHQ checked Sep 29, 2026	501-1,000	663 contacts →
	Partial evidence “ERG is a multidisciplinary consulting firm offering a broad range of professional services.” Source: RevenueBase Database · checked Sep 29, 2026
7	Analytix Solutions	Indirect evidence	Woburn, MA, United StatesHQ checked Sep 29, 2026	501-1,000	640 contacts →
	Indirect evidence “Welcome to Analytix Solutions!” Source: RevenueBase Database · checked Sep 29, 2026
8	SEI	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 29, 2026	501-1,000	618 contacts →
	Partial evidence “SEI is a management consulting firm delivering fresh perspectives and reliable results.” Source: RevenueBase Database · checked Sep 29, 2026
9	Life Cycle Engineering	Partial evidence	Charleston, SC, United StatesHQ checked Sep 29, 2026	501-1,000	539 contacts →
	Partial evidence “Life Cycle Engineering (LCE) provides consulting, engineering, information technology and education solutions that deliver lasting results for private industry, public entities…” Source: RevenueBase Database · checked Sep 29, 2026
10	Allied Market Research	Strong evidence	Wilmington, DE, United StatesHQ checked Sep 29, 2026	501-1,000	508 contacts →
	Strong evidence “Driven by innovation and value addition approach, Allied Market Research is instrumental in market research and business consulting across various industry verticals since its…” Source: RevenueBase Database · checked Sep 29, 2026
11	Resultant	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 29, 2026	201-500	431 contacts →
	Indirect evidence “We are a passionate team of engineers, mathematicians, data analysts, project managers, and business consultants.” Source: RevenueBase Database · checked Sep 29, 2026
12	Kaiser Associates	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	51-200	397 contacts →
	Partial evidence “Kaiser Associates was founded in 1981 with a simple yet powerful mission: to help executives make more informed strategic and operational decisions by incorporating external…” Source: RevenueBase Database · checked Sep 29, 2026
13	Prescouter, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	201-500	325 contacts →
	Partial evidence “PreScouter is a strategy consulting firm supporting innovation-minded clients with challenges related to strategy, science, technology, and growth.” Source: RevenueBase Database · checked Sep 29, 2026
14	OPTYM	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	201-500	317 contacts →
	Indirect evidence “Optym delivers efficiency, enhances profitability, and solves complex challenges for transportation and logistics companies though purpose-built optimization software.” Source: RevenueBase Database · checked Sep 29, 2026
15	IPM Integrated Project Management Company	Partial evidence	Burr Ridge, IL, United StatesHQ checked Sep 29, 2026	201-500	307 contacts →
	Partial evidence “Integrated Project Management Company, Inc.(IPM) is a business consulting firm focused on planning and implementing strategically critical initiatives across multiple industries…” Source: RevenueBase Database · checked Sep 29, 2026
16	Insight2profit	Indirect evidence	Beachwood, OH, United StatesHQ checked Sep 29, 2026	201-500	273 contacts →
	Indirect evidence “INSIGHT2PROFIT, a DFW Capital Partners portfolio company, accelerates profitable growth for leading organizations through integrated pricing and commercial excellence.” Source: RevenueBase Database · checked Sep 29, 2026
17	FULD	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	269 contacts →
	Indirect evidence “Fuld are competitive strategy advisors that help clients anticipate competitive activity, see beyond market disruptions and develop or refine forward-looking business strategies.” Source: RevenueBase Database · checked Sep 29, 2026
18	TCG	Indirect evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	51-200	263 contacts →
	Indirect evidence “Traditional we are not.” Source: RevenueBase Database · checked Sep 29, 2026
19	SSA Consultants	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 29, 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 29, 2026
20	Manhattan Strategy Group	Strong evidence	Bethesda, MD, United StatesHQ checked Sep 29, 2026	51-200	257 contacts →
	Strong evidence “Manhattan Strategy is a boutique research and management consulting firm dedicated to helping our government and commercial clients achieve performance excellence.” Source: RevenueBase Database · checked Sep 29, 2026
21	BSI Engineering	Partial evidence	Mason, OH, United StatesHQ checked Sep 29, 2026	201-500	247 contacts →
	Partial evidence “BSI Engineering is a full-service engineering consulting firm dedicated to delivering innovative, efficient, and effective solutions across various industries.” Source: RevenueBase Database · checked Sep 29, 2026
22	Scottmadden, INC	Partial evidence	Raleigh, NC, United StatesHQ checked Sep 29, 2026	201-500	244 contacts →
	Partial evidence “ScottMadden is a management consulting firm that does what it takes to get the job done right.” Source: RevenueBase Database · checked Sep 29, 2026
23	Graymatter	Indirect evidence	Sewickley, PA, United StatesHQ checked Sep 29, 2026	201-500	243 contacts →
	Indirect evidence “At GrayMatter, smart thinking meets decisive doing.” Source: RevenueBase Database · checked Sep 29, 2026
24	Thought Logic Consulting	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	201-500	219 contacts →
	Indirect evidence “Thought logic is a functionally-led, digitally enabled consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
25	Accretive Solutions	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	501-1,000	217 contacts →
	Indirect evidence “Your World.” Source: RevenueBase Database · checked Sep 29, 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: operations research 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 operations research consulting firms.
Partial evidence: Its own public description names part of operations research consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name operations research 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 5,019 operations research consulting firms based in the United States

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Operations research consulting firms based in the United States at a glance

As of Sep 29, 2026

33.2%Verified-email coverage

10.2Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

3,802

11-50

904

51-200

219

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 5,019 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 operations research 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 “operations research 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 operations research 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 operations research 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, 17,083 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 29, 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.

Operations research 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 operations research 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 operations research consulting firms are there based in the United States?

RevenueBase identified 5,019 operations research 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?

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

Which city has the most operations research consulting firms?

New York leads with 163 headquartered companies, followed by Atlanta (113) and Chicago (102).

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 17,083 verified decision-maker contacts tracked across these 5,019 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 29, 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.