Company lists · Data refreshed September 2026

Top 25 Decision science consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 6,695 companies tracked

RevenueBase identified 6,695 decision science consulting firms worldwide as of September 2026 and tracks 69,577 professional contacts across them, including 23,311 with verified work emails. The United States is the largest market and London the largest hub.

This list covers decision science consulting firms worldwide, 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. Country and city lists for decision science consulting firms follow the table.

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

6,695Companies

69,577Contacts tracked

23,311Verified emails

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The 25 largest decision science consulting firms worldwide

Ranked by team size

Top 25 of 6,695 decision science consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to decision science 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	Accenture Strategy & Consulting	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	5,001-10,000	5,514 contacts →
	Indirect evidence “Accenture Strategy combines deep industry expertise, advanced analytics capabilities and human-led design methodologies that enable clients to act with speed and confidence.” Source: RevenueBase Database · checked Sep 28, 2026
2	FICO	Partial evidence	Bozeman, MT, United StatesHQ checked Sep 28, 2026	1,001-5,000	5,069 contacts →
	Partial evidence “FICO (NYSE: FICO) powers decisions that help people and businesses around the world prosper.” Source: RevenueBase Database · checked Sep 28, 2026
3	MU Sigma INC	Partial evidence	Northbrook, IL, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,774 contacts →
	Partial evidence “Mu Sigma builds decisions.” Source: RevenueBase Database · checked Sep 28, 2026
4	Dunnhumby	Partial evidence	Brook Green, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,857 contacts →
	Partial evidence “dunnhumby helps businesses grow through faster, better decision making, as the essential intelligence layer connecting the world’s leading retailers and brands.” Source: RevenueBase Database · checked Sep 28, 2026
5	Trinity Life Sciences	Partial evidence	Waltham, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,566 contacts →
	Partial evidence “Trinity is the commercialization intelligence partner for life sciences.” Source: RevenueBase Database · checked Sep 28, 2026
6	Infocepts	Indirect evidence	Washington Dc, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,485 contacts →
	Indirect evidence “Infocepts enables improved business results through more effective use of data, AI & user-friendly analytics.” Source: RevenueBase Database · checked Sep 28, 2026
7	D-Fine	Partial evidence	Frankfurt, GermanyHQ checked Sep 28, 2026	1,001-5,000	1,472 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
8	Interpath	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,006 contacts →
	Indirect evidence “Interpath supports businesses, their investors and stakeholders across a broad range of specialisms spanning restructuring, deals, strategy & value creation and forensic…” Source: RevenueBase Database · checked Sep 28, 2026
9	ORTEC	Indirect evidence	Zoetermeer, NetherlandsHQ checked Sep 28, 2026	501-1,000	895 contacts →
	Indirect evidence “ORTEC is a global provider of supply chain planning and workforce management software, helping organizations optimize the use of their people and resources through trusted…” Source: RevenueBase Database · checked Sep 28, 2026
10	Analytix Solutions	Indirect evidence	Woburn, MA, United StatesHQ checked Sep 28, 2026	501-1,000	640 contacts →
	Indirect evidence “Welcome to Analytix Solutions!” Source: RevenueBase Database · checked Sep 28, 2026
11	Bilytica	Partial evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	201-500	372 contacts →
	Partial evidence “Bilytica is a global leader in data analytics and business intelligence, driving innovation through advanced data science, AI, and digital transformation.” Source: RevenueBase Database · checked Sep 28, 2026
12	Spinnaker Analytics	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	337 contacts →
	Indirect evidence “Spinnaker Analytics builds powerful predictive algorithms to engineer our clients’ growth.” Source: RevenueBase Database · checked Sep 28, 2026
13	Brandscapes Worldwide	Partial evidence	Mumbai, IndiaHQ checked Sep 28, 2026	201-500	335 contacts →
	Partial evidence “Brandscapes leverages the power of advanced data science tools and the practical marketing and communication planning expertise to distill actionable marketing insights.” Source: RevenueBase Database · checked Sep 28, 2026
14	Prescouter, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	325 contacts →
	Strong 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 28, 2026
15	Lincoln France	Partial evidence	Boulogne-billancourt, FranceHQ checked Sep 28, 2026	201-500	311 contacts →
	Partial evidence “LINCOLN est depuis plus de vingt-cinq ans une Entreprise de Service du Numérique, pionnière en science des données et proposant des prestations d’expertise, de conseil et…” Source: RevenueBase Database · checked Sep 28, 2026
16	Dataside	Indirect evidence	São José Dos Campos, BrazilHQ checked Sep 28, 2026	1,001-5,000	308 contacts →
	Indirect evidence “Somos uma consultoria focada em dados, inteligência artificial e negócios, que tem como missão acompanhar as organizações em sua jornada de avanço com IA aplicada a negócios.” Source: RevenueBase Database · checked Sep 28, 2026
17	Lumivero	Partial evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	201-500	296 contacts →
	Partial evidence “Turn data complexity into clarity with Lumivero – a leading provider of research and decision software built to help organizations simplify complex data, uncover meaningful…” Source: RevenueBase Database · checked Sep 28, 2026
18	Aspect Ratio	Strong evidence	Pune, IndiaHQ checked Sep 28, 2026	51-200	277 contacts →
	Strong evidence “Aspect Ratio is a team of data scientists, researchers and engineers who believe in the power of data to shape decisions.” Source: RevenueBase Database · checked Sep 28, 2026
19	FULD	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 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 28, 2026
20	Fresh Gravity	Partial evidence	Flower Mound, TX, United StatesHQ checked Sep 28, 2026	201-500	245 contacts →
	Partial evidence “Founded in 2015, Fresh Gravity helps businesses make data-driven decisions.” Source: RevenueBase Database · checked Sep 28, 2026
21	Epinion	Partial evidence	Copenhagen N, DenmarkHQ checked Sep 28, 2026	51-200	245 contacts →
	Partial evidence “With 25 years of experience as a research and consulting firm, we help organizations and businesses find direction in an increasingly data-complex world, transforming vast…” Source: RevenueBase Database · checked Sep 28, 2026
22	Graymatter	Partial evidence	Sewickley, PA, United StatesHQ checked Sep 28, 2026	201-500	243 contacts →
	Partial evidence “At GrayMatter, smart thinking meets decisive doing.” Source: RevenueBase Database · checked Sep 28, 2026
23	Mentius S.A.S	Indirect evidence	Bogota, ColombiaHQ checked Sep 28, 2026	201-500	234 contacts →
	Indirect evidence “En Mentius transformamos la inteligencia de negocios y el marketing en motores de crecimiento rentable.” Source: RevenueBase Database · checked Sep 28, 2026
24	Axis Group	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	51-200	223 contacts →
	Partial evidence “Axis Group is a Gartner-recognized Data & Analytics consulting firm focused on helping enterprises optimize their business through data.” Source: RevenueBase Database · checked Sep 28, 2026
25	Quantzig	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	216 contacts →
	Indirect evidence “Quantzig is at the forefront of partnering with businesses to help them unlock transformative value through analytics solutions.” 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: decision science 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 decision science consulting firms.
Partial evidence: Its own public description names part of decision science consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name decision science 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 6,695 decision science consulting firms worldwide

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Decision science consulting firms worldwide at a glance

As of Sep 28, 2026

33.5%Verified-email coverage

10.4Average contacts per company

1-10Median size (employees)

2.9%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

4,884

11-50

1,436

51-200

294

201-500

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among decision science 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.
Coverage: Every country. Country and city lists for decision science consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “decision science 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 decision science 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 decision science consulting firms, and records with no verified work email.
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, 23,311 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.

Decision science consulting firms by location

45 lists · largest first

Every Decision science 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 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 decision science 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 decision science consulting firms are there worldwide?

RevenueBase identified 6,695 decision science consulting firms worldwide 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?

Accenture Strategy & Consulting, headquartered in Chicago, tops this list with the largest team on record.

Which country has the most decision science consulting firms?

The United States leads with 1,642 companies, followed by India (390) and Brazil (376). Every decision science consulting firms list by country and city is linked on this page.

Which city has the most decision science consulting firms?

London leads with 193 headquartered companies, followed by Sao Paulo (114) and New York (111).

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 23,311 verified decision-maker contacts tracked across these 6,695 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.