Company lists · Data refreshed September 2026

Top 25 Operations research consulting firms worldwide

Name: Operations research consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 22,225 companies tracked

RevenueBase identified 22,225 company matches for operations research consulting firms worldwide as of September 2026 and tracks 167,525 professional contacts across them, including 41,514 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for operations research consulting firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026. Country and city lists for operations research consulting firms follow the table.

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 RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built

22,225Companies

167,525Contacts tracked

41,514Verified emails

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The 25 largest operations research consulting firms worldwide

Ranked by team size

Top 25 of 22,225 company matches for operations research consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Kearney	Exact match	Chicago, IL, United StatesHQ recorded Sep 29, 2026	5,001-10,000	6,978 contacts →
	Exact match “As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2	Propia AB	Exact match	Norrköping, SwedenHQ recorded Sep 29, 2026	n/a	2,448 contacts →
	Exact match “Propia is a Consultant Company offering competence and proven methodology within Operational Excellence.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3	Abylsen	Exact match	Paris, FranceHQ recorded Sep 29, 2026	1,001-5,000	1,577 contacts →
	Exact match “In a world that too often follows currents, Abylsen has been opening itself up to new directions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4	D-Fine	Exact match	Frankfurt, GermanyHQ recorded Sep 29, 2026	1,001-5,000	1,472 contacts →
	Exact match “Imagine the power of physicists, mathematicians and computer scientists working as part of a European company with over 20 years of service excellence focused on data science…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5	Ardurra	Exact match	Miami, FL, United StatesHQ recorded Sep 29, 2026	1,001-5,000	1,260 contacts →
	Exact match “Expertly balancing experience and innovation to deliver unique solutions to public and private clients.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6	W3global	Exact match	Frisco, TX, United StatesHQ recorded Sep 29, 2026	501-1,000	1,149 contacts →
	Exact match “W3Global is a leading provider of end-to-end consulting services, empowering businesses to achieve their strategic goals and optimize their operations.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Falconi	Exact match	Sao Paulo, BrazilHQ recorded Sep 29, 2026	501-1,000	990 contacts →
	Exact match “A Falconi é a maior consultoria brasileira de gestão empresarial.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8	Argon & CO	Exact match	Levallois-perret, FranceHQ recorded Sep 29, 2026	1,001-5,000	858 contacts →
	Exact match “Argon & Co is a global management consultancy that specialises in operations strategy and transformation.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Inform Gmbh	Exact match	Aachen, GermanyHQ recorded Sep 29, 2026	1,001-5,000	803 contacts →
	Exact match “INFORM develops software solutions that enable better decision-making in industrial and logistics processes as well as in the financial sector, from risk management and fraud…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10	The Vertex Companies LLC	Exact match	New York, NY, United StatesHQ recorded Sep 29, 2026	501-1,000	765 contacts →
	Exact match “The Vertex Companies, LLC is a global consulting firm that provides strategic advisory, project management, and dispute resolution services for organizations that face complex…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	CAI	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 29, 2026	501-1,000	763 contacts →
	Exact match “At CAI, we are a professional services firm designed to accelerate operational readiness and excellence in critical environments.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12	ERG	Exact match	Concord, MA, United StatesHQ recorded Sep 29, 2026	501-1,000	663 contacts →
	Exact match “ERG is a multidisciplinary consulting firm offering a broad range of professional services.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Logistics Executive Group	Exact match	Sydney, AustraliaHQ recorded Sep 29, 2026	n/a	647 contacts →
	Exact match “Welcome to Logistics Executive Group - The hub of your global supply chain.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14	Analytix Solutions	Exact match	Woburn, MA, United StatesHQ recorded Sep 29, 2026	501-1,000	640 contacts →
	Exact match “Welcome to Analytix Solutions!” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	SEI	Exact match	Cincinnati, OH, United StatesHQ recorded Sep 29, 2026	501-1,000	618 contacts →
	Exact match “SEI is a management consulting firm delivering fresh perspectives and reliable results.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Life Cycle Engineering	Exact match	Charleston, SC, United StatesHQ recorded Sep 29, 2026	501-1,000	539 contacts →
	Exact match “Life Cycle Engineering (LCE) provides consulting, engineering, information technology and education solutions that deliver lasting results for private industry, public entities…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	Allied Market Research	Exact match	Wilmington, DE, United StatesHQ recorded Sep 29, 2026	501-1,000	508 contacts →
	Exact match “Driven by innovation and value addition approach, Allied Market Research is instrumental in market research and business consulting across various industry verticals since its…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Thoucentric	Exact match	Bangalore, IndiaHQ recorded Sep 29, 2026	501-1,000	476 contacts →
	Exact match “Thoucentric is a niche management consulting company that uses relevant digital and functional domain expertise to solve problems in Supply Chain, Sales & Distribution, and…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Demarco	Exact match	Belo Horizonte, BrazilHQ recorded Sep 29, 2026	201-500	452 contacts →
	Exact match “Since 2004, we have helped companies solve their challenges in People, Management, Security and Trade Union Relations, delivering world-class results.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Resultant	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 29, 2026	201-500	431 contacts →
	Exact match “We are a passionate team of engineers, mathematicians, data analysts, project managers, and business consultants.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	H.H. Angus & Associates LTD	Exact match	Toronto, ON, CanadaHQ recorded Sep 29, 2026	201-500	424 contacts →
	Exact match “HH Angus Corporate Overview HH Angus and Associates Limited was founded in 1919 and today is one of Canada’s larger private engineering firms.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Kaiser Associates	Exact match	Washington, DC, United StatesHQ recorded Sep 29, 2026	51-200	397 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	3eriza	Exact match	Surquillo, PeruHQ recorded Sep 29, 2026	1,001-5,000	391 contacts →
	Exact match “3eriza es una consultora especializada en el diseño, implementación y optimización de la provisión de servicios a empresas, brindando soporte en dos frentes: Asesorando a empresas…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	Stcp Engenharia DE Projetos	Exact match	Curitiba, BrazilHQ recorded Sep 29, 2026	201-500	370 contacts →
	Exact match “STCP Engenharia de Projetos Ltda é uma das companhias pioneiras no Brasil a integrar em um único centro três áreas relacionadas à projetos do setor florestal.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	KLB	Exact match	Vincennes, MexicoHQ recorded Sep 29, 2026	501-1,000	363 contacts →
	Exact match “KLB Group is an international consulting firm specializing in operational performance for more than 25 years and bringing together nearly 750 employees worldwide.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “operations research consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 22,225 operations research consulting firms worldwide

See the full list, filter by size, metro and specialty, and access 41,514 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Operations research consulting firms worldwide at a glance

As of Sep 29, 2026

24.8%Verified-email coverage

7.5Average contacts per company

1-10Median size (employees)

1.8%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

16,293

11-50

4,608

51-200

966

201-500

198

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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.
Coverage: Every country. Country and city lists for operations research consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “operations research consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 41,514 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Operations research consulting firms by location

109 lists · largest first

Every Operations research consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “operations research consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many operations research consulting firms are there worldwide?

RevenueBase identified 22,225 company matches for operations research consulting firms worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Kearney tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most operations research consulting firms?

The United States leads with 5,019 companies, followed by Brazil (1,437) and France (1,108). Every operations research consulting firms list by country and city is linked on this page.

Which city has the most operations research consulting firms?

Sao Paulo leads with 393 company records, followed by Paris (343) and London (276).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 41,514 professional contacts with verified work emails tracked across these 22,225 companies; direct dials are available where recorded.

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 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.