Company lists · Data refreshed September 2026

Top 25 Impact measurement firms worldwide

Name: Impact measurement firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 976 companies tracked

RevenueBase identified 976 impact measurement firms worldwide as of September 2026 and tracks 6,615 professional contacts across them, including 2,127 with verified work emails. The United States is the largest market and London the largest hub.

This list covers impact measurement 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 20, 2026. Country and city lists for impact measurement 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 20, 2026 86% judged on-target in blind review

976Companies

6,615Contacts tracked

2,127Verified emails

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The 25 largest impact measurement firms worldwide

Ranked by team size

Top 25 of 976 impact measurement firms worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to impact measurement 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	60 Decibels	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	n/a	660 contacts →
	Partial evidence “60 Decibels is the world’s leading customer insights company for social impact.” Source: RevenueBase Database · checked Sep 20, 2026
2	Genesis Analytics	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 20, 2026	201-500	355 contacts →
	Indirect evidence “Genesis Analytics has worked in more than 115 countries.” Source: RevenueBase Database · checked Sep 20, 2026
3	Cerp Evidence Matters	Partial evidence	Lahore, PakistanHQ checked Sep 20, 2026	51-200	254 contacts →
	Partial evidence “CERP is a leading impact-driven organisation focused on improving decision making through rigorous research, advanced analytics, capacity building, data collection and advisory…” Source: RevenueBase Database · checked Sep 20, 2026
4	Gist Impact	Partial evidence	Nyon, SwitzerlandHQ checked Sep 20, 2026	51-200	177 contacts →
	Partial evidence “GIST Impact is a market-leading impact data and analytics provider.” Source: RevenueBase Database · checked Sep 20, 2026
5	Socha, LLC	Indirect evidence	Mapou, United StatesHQ checked Sep 20, 2026	11-50	88 contacts →
	Indirect evidence “Through providing evidence and building knowledge, SoCha empowers governments, international development agencies and organizations, and other implementers to understand their…” Source: RevenueBase Database · checked Sep 20, 2026
6	Pinion	Partial evidence	São Paulo, BrazilHQ checked Sep 20, 2026	51-200	86 contacts →
	Partial evidence “PiniOn is a mission-driven data and impact solution that drives measurable operational, social, and environmental impact while bringing prosperity to communities.” Source: RevenueBase Database · checked Sep 20, 2026
7	Sigma Research & Consulting Pvt. LTD	Indirect evidence	New Delhi, IndiaHQ checked Sep 20, 2026	51-200	84 contacts →
	Indirect evidence “Sigma Research & Consulting Pvt Ltd is a premier Indian organization providing expert services in social research, strategic consulting, and data analytics.” Source: RevenueBase Database · checked Sep 20, 2026
8	Soulace	Partial evidence	Mumbai, IndiaHQ checked Sep 20, 2026	51-200	75 contacts →
	Partial evidence “Founded in 2009, SoulAce pioneered the professional firm's foray into the CSR arena with a clear mission: to make a lasting, positive impact on the social development sector.” Source: RevenueBase Database · checked Sep 20, 2026
9	The Khana Group	Partial evidence	New York, United StatesHQ checked Sep 20, 2026	11-50	72 contacts →
	Partial evidence “TKG is a leading social impact research, evaluation, data collection, and strategy firm with offices in Ghana, Nigeria, Guinea, Liberia, Sierra Leone, and the US.” Source: RevenueBase Database · checked Sep 20, 2026
10	Holoniq	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	60 contacts →
	Partial evidence “The world's leading impact intelligence platform.” Source: RevenueBase Database · checked Sep 20, 2026
11	Memo A Kantar Company	Indirect evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	11-50	55 contacts →
	Indirect evidence “MeMo² a Kantar company - is a globally recognized leader in the field of marketing and business consulting.” Source: RevenueBase Database · checked Sep 20, 2026
12	Impact Institute	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	51-200	54 contacts →
	Partial evidence “One of the greatest opportunities of the 21st century is the realization of the impact economy: an economy where everyday work, entrepreneurship, innovation, and technology lead…” Source: RevenueBase Database · checked Sep 20, 2026
13	The Upright Project	Partial evidence	Helsinki, FinlandHQ checked Sep 20, 2026	51-200	49 contacts →
	Partial evidence “Upright is an impact data company that has built a new type of a quantification model to measure the net impact of companies.” Source: RevenueBase Database · checked Sep 20, 2026
14	Outline India	Indirect evidence	Gurgaon, IndiaHQ checked Sep 20, 2026	11-50	46 contacts →
	Indirect evidence “Outline India is a decision-intelligence and research firm delivering ground-level data to drive smarter social investments.” Source: RevenueBase Database · checked Sep 20, 2026
15	Global Insight	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	44 contacts →
	Partial evidence “We support purpose-driven organizations, donors, and investors to understand, measure, and communicate their impact.” Source: RevenueBase Database · checked Sep 20, 2026
16	Ember Advisors	Indirect evidence	Sydney, AustraliaHQ checked Sep 20, 2026	11-50	42 contacts →
	Indirect evidence “Ember Advisors blends strategy consulting with data and analytics to support public sector clients.” Source: RevenueBase Database · checked Sep 20, 2026
17	GC Insight	Partial evidence	Manchester, United KingdomHQ checked Sep 20, 2026	11-50	40 contacts →
	Partial evidence “PURPOSE-DRIVEN RESEARCH & ADVICE SERVICES We are a social enterprise, committed to generating social value impacts and helping our clients have a more positive impact on place…” Source: RevenueBase Database · checked Sep 20, 2026
18	Workmagic	Partial evidence	United StatesHQ checked Sep 20, 2026	11-50	39 contacts →
	Partial evidence “WorkMagic is the leader in Triangulated Measurement, which calibrates multi-touch attribution and models with incrementality tests and grounds all marketing decisioning in…” Source: RevenueBase Database · checked Sep 20, 2026
19	Devinsights	Partial evidence	Noida, IndiaHQ checked Sep 20, 2026	11-50	38 contacts →
	Partial evidence “Dev Insights is among India’s leading impact assessment and M&E agencies, with over 200 large-scale evaluations across public health, WASH, education, livelihoods, and CSR…” Source: RevenueBase Database · checked Sep 20, 2026
20	Atlas Metrics	Indirect evidence	Berlin, GermanyHQ checked Sep 20, 2026	11-50	37 contacts →
	Indirect evidence “Atlas Metrics is now part of Novata.” Source: RevenueBase Database · checked Sep 20, 2026
21	Institute For Development Impact - I4di	Strong evidence	Washington, DC, United StatesHQ checked Sep 20, 2026	11-50	37 contacts →
	Strong evidence “The Institute for Development Impact (I4DI) is rethinking impact measurement and learning to shape how organizations invest, operate, and improve.” Source: RevenueBase Database · checked Sep 20, 2026
22	Impactdash	Partial evidence	Delhi, IndiaHQ checked Sep 20, 2026	11-50	36 contacts →
	Partial evidence “Impact organizations often struggle with scattered data and disconnected tools.” Source: RevenueBase Database · checked Sep 20, 2026
23	Steward Redqueen	Partial evidence	Amsterdam, NetherlandsHQ checked Sep 20, 2026	11-50	35 contacts →
	Partial evidence “The consultancy firm that wants to make business work for society We believe that great companies know that their success in the market depends on the positive impact they have on…” Source: RevenueBase Database · checked Sep 20, 2026
24	SVT Group	Partial evidence	Silicon Valley, CA, United StatesHQ checked Sep 20, 2026	n/a	35 contacts →
	Partial evidence “SVT is a pioneering impact management advisory firm founded in 2001.” Source: RevenueBase Database · checked Sep 20, 2026
25	Substance	Indirect evidence	Manchester, United KingdomHQ checked Sep 20, 2026	11-50	34 contacts →
	Indirect evidence “Founded in Manchester, 2005.” Source: RevenueBase Database · checked Sep 20, 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: impact measurement 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 impact measurement firms.
Partial evidence: Its own public description names part of impact measurement firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name impact measurement 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 976 impact measurement firms worldwide

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Impact measurement firms worldwide at a glance

As of Sep 20, 2026

32.2%Verified-email coverage

6.8Average contacts per company

1-10Median size (employees)

5.2%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

768

11-50

186

51-200

201-500

501-1,000

1,001-5,000

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 impact measurement 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 impact measurement firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “impact measurement 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 impact measurement 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 impact measurement 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, 2,127 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 20, 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.

Impact measurement firms by location

7 lists · largest first

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

Countries

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 impact measurement 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 impact measurement firms are there worldwide?

RevenueBase identified 976 impact measurement 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?

60 Decibels, headquartered in New York, tops this list with the largest team on record.

Which country has the most impact measurement firms?

The United States leads with 241 companies, followed by the United Kingdom (104) and India (49). Every impact measurement firms list by country and city is linked on this page.

Which city has the most impact measurement firms?

London leads with 51 headquartered companies, followed by New York (21) and Paris (16).

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 2,127 verified decision-maker contacts tracked across these 976 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 20, 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.