Company lists · Data refreshed September 2026

Top 25 Grassroots consulting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 21,695 companies tracked

RevenueBase identified 21,695 grassroots consulting firms worldwide as of September 2026 and tracks 149,037 professional contacts across them, including 34,777 with verified work emails. The United States is the largest market and Washington the largest hub.

This list covers grassroots 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 grassroots 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

21,695Companies

149,037Contacts tracked

34,777Verified emails

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The 25 largest grassroots consulting firms worldwide

Ranked by team size

Top 25 of 21,695 grassroots 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 grassroots 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	Bank Of The West	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	n/a	4,751 contacts →
	Indirect evidence “We help businesses and nonprofits grow, communicate, and succeed, professionally and affordably.” Source: RevenueBase Database · checked Sep 28, 2026
2	180 Degrees Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	10001+	2,891 contacts →
	Partial evidence “180 Degrees Consulting (180DC) is the world's largest youth led consultancy for non-profits, governments and social-conscious organisations, with over 200 branches in 38+…” Source: RevenueBase Database · checked Sep 28, 2026
3	Tyréns AB	Indirect evidence	SwedenHQ checked Sep 28, 2026	1,001-5,000	1,916 contacts →
	Indirect evidence “Tyréns is one of Sweden’s leading community development consultancies.” Source: RevenueBase Database · checked Sep 28, 2026
4	GFA Consulting Group Gmbh	Partial evidence	Hamburg, GermanyHQ checked Sep 28, 2026	1,001-5,000	1,382 contacts →
	Partial evidence “GFA Consulting Group is one of Europe's leading consulting firms in the field of international development cooperation.” Source: RevenueBase Database · checked Sep 28, 2026
5	IPE Global Limited	Indirect evidence	New Delhi, IndiaHQ checked Sep 28, 2026	501-1,000	1,322 contacts →
	Indirect evidence “Headquartered in India with six international offices in Cambodia, Ethiopia, Kenya, the Philippines, Germany and the United Kingdom, IPE Global Group offers a range of integrated…” Source: RevenueBase Database · checked Sep 28, 2026
6	Blackmont Consulting	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	1,221 contacts →
	Partial evidence “Blackmont Consulting provides 100% free advisory services to NGO´s, NPO´s and start-ups.” Source: RevenueBase Database · checked Sep 28, 2026
7	URBIS	Indirect evidence	Melbourne, AustraliaHQ checked Sep 28, 2026	501-1,000	1,096 contacts →
	Indirect evidence “Urbis is more than just a consultancy.” Source: RevenueBase Database · checked Sep 28, 2026
8	Lucas Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	10001+	756 contacts →
	Partial evidence “Ultimate Minds is a professional consulting and marketing firm dedicated to empowering businesses, nonprofits, and startups with smart, affordable, and results-driven solutions.” Source: RevenueBase Database · checked Sep 28, 2026
9	Cossette	Indirect evidence	Quebec City, QC, CanadaHQ checked Sep 28, 2026	501-1,000	753 contacts →
	Indirect evidence “We are an eclectic collective with multifaceted expertise.” Source: RevenueBase Database · checked Sep 28, 2026
10	CCS Fundraising	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	728 contacts →
	Indirect evidence “For over 75 years, CCS Fundraising has empowered many of the world’s greatest organizations to advance some of the most important causes in history.” Source: RevenueBase Database · checked Sep 28, 2026
11	Niras International Consulting	Partial evidence	Copenhagen, DenmarkHQ checked Sep 28, 2026	201-500	667 contacts →
	Partial evidence “NIRAS International Development Consulting is one of Europe's largest development consulting firms.” Source: RevenueBase Database · checked Sep 28, 2026
12	Liga Solidária	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	1,001-5,000	513 contacts →
	Indirect evidence “Há mais de um século, a Liga Solidária nasceu da força e determinação de mulheres que acreditavam na transformação social como resposta às urgências da época.” Source: RevenueBase Database · checked Sep 28, 2026
13	GVA	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	499 contacts →
	Indirect evidence “Créé en 1975, GVA est composé de 80 personnes, pour près de 10 millions de chiffre d’affaires.” Source: RevenueBase Database · checked Sep 28, 2026
14	Ramon Aboitiz Foundation, Inc. Rafi	Indirect evidence	Cebu City, PhilippinesHQ checked Sep 28, 2026	501-1,000	483 contacts →
	Indirect evidence “The Ramon Aboitiz Foundation (RAFI) is a non-stock, non-profit organization (SEC Registration 31083) established in 1966 by Don Ramon Aboitiz.” Source: RevenueBase Database · checked Sep 28, 2026
15	Jarvis Technology And Strategy Consulting	Partial evidence	Delhi Ncr, IndiaHQ checked Sep 28, 2026	201-500	476 contacts →
	Partial evidence “Jarvis Technology & Strategy Consulting is one of India's leading political and governance consulting firms, helping leaders and institutions make better decisions through…” Source: RevenueBase Database · checked Sep 28, 2026
16	Showtime Consulting	Indirect evidence	Hyderabad, IndiaHQ checked Sep 28, 2026	201-500	466 contacts →
	Indirect evidence “We bring together the brightest minds from India’s premier institutes to work on the most pressing public outreach challenges.” Source: RevenueBase Database · checked Sep 28, 2026
17	365 Media	Indirect evidence	Portsmouth, NH, United StatesHQ checked Sep 28, 2026	n/a	460 contacts →
	Indirect evidence “365 Media is a total service provider business community building and audience engagement.” Source: RevenueBase Database · checked Sep 28, 2026
18	The Bridgespan Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	201-500	443 contacts →
	Indirect evidence “The Bridgespan Group is a global nonprofit that strives to make the world more equitable and just.” Source: RevenueBase Database · checked Sep 28, 2026
19	Sattva Consulting	Partial evidence	Bangalore, IndiaHQ checked Sep 28, 2026	201-500	441 contacts →
	Partial evidence “At Sattva Consulting, we believe meaningful change happens when people come together with a shared purpose.” Source: RevenueBase Database · checked Sep 28, 2026
20	Lutheran Services In Iowa	Indirect evidence	Des Moines, IA, United StatesHQ checked Sep 28, 2026	501-1,000	415 contacts →
	Indirect evidence “Making a difference takes leadership and courage.” Source: RevenueBase Database · checked Sep 28, 2026
21	The Outreach Team	Partial evidence	Ithaca, NY, United StatesHQ checked Sep 28, 2026	201-500	398 contacts →
	Partial evidence “The Outreach Team is a national consulting firm working to make the world a better place.” Source: RevenueBase Database · checked Sep 28, 2026
22	FCG Finnish Consulting Group	Indirect evidence	Helsinki, FinlandHQ checked Sep 28, 2026	201-500	393 contacts →
	Indirect evidence “Olemme kuntien, yritysten ja yhteisöjen kumppani monialaisessa yhdyskuntasuunnittelussa, osaamisen kehittämisessä ja hyvän hallinnon edistämisessä.” Source: RevenueBase Database · checked Sep 28, 2026
23	Delivery Associates	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	361 contacts →
	Indirect evidence “We make change happen.” Source: RevenueBase Database · checked Sep 28, 2026
24	Deep Water Point & Associates	Indirect evidence	Annapolis, MD, United StatesHQ checked Sep 28, 2026	201-500	350 contacts →
	Indirect evidence “Deep Water Point & Associates is composed of industry veterans and government experts who dedicate their expertise to maximize our clients’ competitive edge.” Source: RevenueBase Database · checked Sep 28, 2026
25	Fieldworks	Partial evidence	Washington, DC, United StatesHQ checked Sep 28, 2026	5,001-10,000	336 contacts →
	Partial evidence “FieldWorks brings innovative grassroots and field strategies to Democratic and progressive campaigns and organizations.” 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: grassroots 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 grassroots consulting firms.
Partial evidence: Its own public description names part of grassroots consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grassroots 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 21,695 grassroots consulting firms worldwide

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Grassroots consulting firms worldwide at a glance

As of Sep 28, 2026

23.3%Verified-email coverage

6.9Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · Washington

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

17,475

11-50

3,415

51-200

595

201-500

107

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 grassroots 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 grassroots consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “grassroots 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 grassroots 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 grassroots 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, 34,777 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.

Grassroots consulting firms by location

116 lists · largest first

Every Grassroots 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 grassroots 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 grassroots consulting firms are there worldwide?

RevenueBase identified 21,695 grassroots 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?

Bank Of The West, headquartered in Chicago, tops this list with the largest team on record.

Which country has the most grassroots consulting firms?

The United States leads with 7,348 companies, followed by Canada (883) and the United Kingdom (797). Every grassroots consulting firms list by country and city is linked on this page.

Which city has the most grassroots consulting firms?

Washington leads with 444 headquartered companies, followed by London (360) and New York (310).

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 34,777 verified decision-maker contacts tracked across these 21,695 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.