Company lists · Data refreshed September 2026
Top 25 Volunteering marketing consultants worldwide
RevenueBase identified 4,334 volunteering marketing consultants worldwide as of September 2026 and tracks 23,225 professional contacts across them, including 2,984 with verified work emails. The United States is the largest market and London the largest hub.
This list covers volunteering marketing consultants 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 29, 2026. Country and city lists for volunteering marketing consultants 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.
The 25 largest volunteering marketing consultants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,751 contacts → | ||||
Indirect evidence “We help businesses and nonprofits grow, communicate, and succeed, professionally and affordably.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 275 contacts → | ||||
Indirect evidence “Taproot Foundation is a nonprofit organization connecting communities and driving social change.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 240 contacts → | ||||
Indirect evidence “Mercadeo strategies are embedded in a sound foundation of proven, time tested business fundamentals, a deep understanding of different market dynamics and intimate knowledge of…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 232 contacts → | ||||
Indirect evidence “Prosperastiftelsen er et nettverk av pro bono-konsulenter med høyere utdannelse og arbeidserfaring fra ledende bedrifter, organisasjoner og offentlig sektor.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 195 contacts → | ||||
Partial evidence “De Kleine Consultant maakt Kleine Consultants en haar klanten groot door strategisch advies te bieden daar waar het de meeste waarde toevoegt.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 126 contacts → | ||||
Indirect evidence “ESSCA Junior Conseil has been ESSCA's Junior Enterprise since 1972.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 108 contacts → | ||||
Indirect evidence “JESAP Consulting is a no-profit association composed of the most motivated students of Sapienza Università di Roma which offers consulting services to different types of companies…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 83 contacts → | ||||
Partial evidence “180 Degrees Consulting is the world’s largest student-led consultancy for non-profits and social enterprises.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 71 contacts → | ||||
Partial evidence “180 Degrees Consulting is the world's largest consultancy for non-profits and social enterprises.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 59 contacts → | ||||
Indirect evidence “We envision a world where access to professional consulting services is not a barrier to non-profits in achieving their goals, regardless of their financial capacity.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 58 contacts → | ||||
Indirect evidence “JECoMM è un’associazione studentesca non profit nata nel 2006 da un gruppo di studenti della Facoltà di Scienze Politiche dell’Università degli Studi di Milano, che funziona come…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 58 contacts → | ||||
Strong evidence “Your In-House Outsourced Marketing Resource As the world’s largest independent marketing consultancy, we provide businesses with access to experienced marketing talent on a…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 56 contacts → | ||||
Partial evidence “NOMA Marketing Consulting is a Junior Initiative with more than 8 years of experience.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 52 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 47 contacts → | ||||
Partial evidence “Blue North Strategies is a consulting and marketing agency exclusively serving the non-profit sector.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 47 contacts → | ||||
Indirect evidence “We believe in partnership, building together and sharing of experiences.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 43 contacts → | ||||
Partial evidence “Montage Marketing Group, LLC is a minority and woman-owned small business dedicated to fostering and delivering world-class campaigns.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 42 contacts → | ||||
Indirect evidence “Har du behov for en dyktig markedsfører?” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 42 contacts → | ||||
Partial evidence “VolunteerNow™ is the nation's driving force of VolunteerPower™-the leading consultancy and innovative solutions provider specializing in population-level change through…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 38 contacts → | ||||
Strong evidence “Nous aidons nos clients à construire leur équipe marketing & digital en plaçant les meilleurs consultants en mission chez eux.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 37 contacts → | ||||
Indirect evidence “SOAR strengthens nonprofits through collaborative, pro bono consulting that builds organizational capacity and deepens community impact while fostering an enriching learning…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 36 contacts → | ||||
Indirect evidence “JEBV, fondata a Verona nel 2015, è la Junior Enterprise dell’Università degli Studi di Verona.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 35 contacts → | ||||
Indirect evidence “MTC is a B-Corp Certified social enterprise registered in Singapore.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 34 contacts → | ||||
Partial evidence “180 Degrees Consulting is the world’s largest university-based consultancy providing affordable yet high-quality strategic & operational assistance to socially conscious…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
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: volunteering marketing consultants. 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 volunteering marketing consultants.
- Partial evidence
- Its own public description names part of volunteering marketing consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name volunteering marketing consultants. 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 4,334 volunteering marketing consultants worldwide
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,984 reachable decision-makers.
Free signup · no credit card
Volunteering marketing consultants worldwide at a glance
As of Sep 29, 2026Companies by employee count
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 volunteering marketing consultants, 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 volunteering marketing consultants are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “volunteering marketing consultants”. 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 volunteering marketing consultants), 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 volunteering marketing consultants, 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, 2,984 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.
Volunteering marketing consultants by location
19 lists · largest firstEvery Volunteering marketing consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Volunteering marketing consultants based in the United States1,362
- Volunteering marketing consultants based in the United Kingdom348
- Volunteering marketing consultants based in Canada181
- Volunteering marketing consultants based in Brazil147
- Volunteering marketing consultants based in Australia121
- Volunteering marketing consultants based in France121
- Volunteering marketing consultants based in India99
- Volunteering marketing consultants based in the Netherlands89
- Volunteering marketing consultants based in Germany80
- Volunteering marketing consultants based in Spain78
- Volunteering marketing consultants based in Switzerland33
- Volunteering marketing consultants based in Belgium31
- Volunteering marketing consultants based in Sweden27
Cities
- Volunteering marketing consultants based in London, United Kingdom57
- Volunteering marketing consultants based in New York, United States54
- Volunteering marketing consultants based in Los Angeles, United States42
- Volunteering marketing consultants based in Atlanta, United States34
- Volunteering marketing consultants based in Toronto, Canada31
- Volunteering marketing consultants based in Chicago, United States30
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 volunteering marketing consultants, 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 volunteering marketing consultants are there worldwide?
RevenueBase identified 4,334 volunteering marketing consultants 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 volunteering marketing consultants?
The United States leads with 1,362 companies, followed by the United Kingdom (348) and Canada (181). Every volunteering marketing consultants list by country and city is linked on this page.
Which city has the most volunteering marketing consultants?
London leads with 60 headquartered companies, followed by New York (54) and Los Angeles (42).
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 2,984 verified decision-maker contacts tracked across these 4,334 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.
Ready to reach these companies? Verified emails and direct dials for all 4,334 volunteering marketing consultants worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
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.