Company lists · Data refreshed September 2026
Top 25 Volunteer management consultants worldwide
RevenueBase identified 890 company matches for volunteer management consultants worldwide as of September 2026 and tracks 5,490 professional contacts across them, including 984 with verified work emails. The United States is the largest market and Chicago the largest hub.
This list covers company matches for volunteer management consultants 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 volunteer management consultants 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.
The 25 largest volunteer management consultants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 300 contacts → | ||||
Exact match “Nonprofit HR was founded with one goal in mind: to strengthen the social impact sector by strengthening its people.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 2 | 201 contacts → | ||||
Exact match “Özel Sektör Gönüllüleri Derneği (ÖSGD) şirketler için “Çalışan Gönüllülüğü Programları” geliştirilmesi, çalışanların gönüllü olarak bilgi ve deneyimlerini paylaşabilecekleri…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 3 | 150 contacts → | ||||
Exact match “entidad que se dedica a la promoción social y en especial tienen servicios dedicados a la formación de voluntariado y profesionales, servicios de consultoría organizacional y…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 4 | 74 contacts → | ||||
Exact match “At ESC, our mission is to empower nonprofits to achieve their goals & contribute to a more just and equitable world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 5 | 61 contacts → | ||||
Exact match “Action Planning is a leading management consultancy for the not-for-profit sector.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 6 | 59 contacts → | ||||
Exact match “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.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 7 | 58 contacts → | ||||
Exact match “Eastside People is a community of experienced professionals focused on helping charity, not-for-profit and social enterprise leaders to build the capacity and impact of their…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 8 | 52 contacts → | ||||
Exact match “Haben Sie eine zündende Idee oder ein innovatives Projekt mit dem Potenzial, unsere Gesellschaft voranzubringen?” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 9 | 51 contacts → | ||||
Exact match “ESC provides high-quality, accessible coaching and consulting services for nonprofits throughout Southern California.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 10 | 49 contacts → | ||||
Exact match “OneOC's mission is to accelerate nonprofit success.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 11 | 47 contacts → | ||||
Exact match “The Osborne Group, a proudly Canadian-owned company, has been supporting organizational success since 1993.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 12 | 43 contacts → | ||||
Exact match “Co-founded by Bob Carter and Steve Higgins in 2011, Carter selects its team members from the nation’s most respected nonprofit professionals.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 13 | 42 contacts → | ||||
Exact match “VolunteerNow™ is the nation's driving force of VolunteerPower™-the leading consultancy and innovative solutions provider specializing in population-level change through…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 14 | 40 contacts → | ||||
Exact match “Valtas stands for a shift or pivot forward.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 15 | 38 contacts → | ||||
Exact match “Jaffe Management is a New York City-based company providing full-and partial-management services to associations & non-profits.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 16 | 36 contacts → | ||||
Exact match “Provide Management and Human Resource Consulting” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 17 | 34 contacts → | ||||
Exact match “180 Degrees Consulting is the world’s largest university-based consultancy providing affordable yet high-quality strategic & operational assistance to socially conscious…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 18 | 25 contacts → | ||||
Exact match “The Class Consulting Group is a boutique management consulting firm that provides consulting services to thought leaders in nonprofit, and philanthropic spaces.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 19 | 24 contacts → | ||||
Exact match “We are The Last Mile and we deliver Consultancy and External Management solutions for events and venues.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 20 | 23 contacts → | ||||
Exact match “I Need Helpers has established a strong reputation over the last five years in volunteer management.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 21 | 22 contacts → | ||||
Exact match “Founded in 1998, Inspire is a 501(c)(3) nonprofit offering management and strategy consulting services to leading nonprofit organizations across the United States.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 22 | 21 contacts → | ||||
Exact match “Everdeen er et selskap for konsulenter som ønsker friheten og inntektene ved å være selvstendig konsulent, uten all risikoen.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 23 | 21 contacts → | ||||
Exact match “Sedan 1963 erbjuder Sevenco strategisk kompetens för utveckling och förändring av verksamhet.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 24 | 19 contacts → | ||||
Exact match “Helping nonprofits grow their impact through mobilizing resources, increasing capacity, and hiring exceptional talent.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase | |||||
| 25 | 19 contacts → | ||||
Exact match “A&S Solutions is ontstaan vanuit een reële behoefte.” 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 “volunteer management consultants”. 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 890 volunteer management consultants worldwide
See the full list, filter by size, metro and specialty, and access 984 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Volunteer management 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
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 volunteer management consultants are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “volunteer management consultants” 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 984 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.
Volunteer management consultants by location
4 lists · largest firstEvery Volunteer management consultants 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 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 “volunteer management consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many volunteer management consultants are there worldwide?
RevenueBase identified 890 company matches for volunteer management consultants 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?
Nonprofit Hr, Powered By Onedigital tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most volunteer management consultants?
The United States leads with 345 companies, followed by Canada (55) and the Netherlands (42). Every volunteer management consultants list by country and city is linked on this page.
Which city has the most volunteer management consultants?
Chicago leads with 14 company records, followed by Toronto (13) and Washington (13).
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 984 professional contacts with verified work emails tracked across these 890 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.
Ready to reach these companies? Verified emails and direct dials for all 890 volunteer management consultants worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 volunteer management consultants worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 890 matching company records for volunteer management consultants worldwide, with 5,490 tracked contacts and 984 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 volunteer management consultants worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Nonprofit Hr, Powered By Onedigitalnonprofithr.comHQ: Washington, DC, United StatesReported employees: 10001+ | Washington, DC, United States | 10001+ | Exact match | 300 contacts → |
“Nonprofit HR was founded with one goal in mind: to strengthen the social impact sector by strengthening its people.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: İstanbul, TürkiyeReported employees: Not recorded | İstanbul, Türkiye | Not recorded | Exact match | 201 contacts → |
“Özel Sektör Gönüllüleri Derneği (ÖSGD) şirketler için “Çalışan Gönüllülüğü Programları” geliştirilmesi, çalışanların gönüllü olarak bilgi ve deneyimlerini paylaşabilecekleri…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Fundación EDEedefundazioa.orgHQ: Bilbao, SpainReported employees: 201-500 | Bilbao, Spain | 201-500 | Exact match | 150 contacts → |
“entidad que se dedica a la promoción social y en especial tienen servicios dedicados a la formación de voluntariado y profesionales, servicios de consultoría organizacional y…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Empower Success Corpsempowersuccesscorps.orgHQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 74 contacts → |
“At ESC, our mission is to empower nonprofits to achieve their goals & contribute to a more just and equitable world.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Action Planningactionplanning.co.ukHQ: Beeston, United KingdomReported employees: Not recorded | Beeston, United Kingdom | Not recorded | Exact match | 61 contacts → |
“Action Planning is a leading management consultancy for the not-for-profit sector.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Endeavour Consulting For Non-Profitsendeavourvolunteer.caHQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 59 contacts → |
“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.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Eastside Peopleeastsidepeople.orgHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 58 contacts → |
“Eastside People is a community of experienced professionals focused on helping charity, not-for-profit and social enterprise leaders to build the capacity and impact of their…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  innovage.chinnovage.chHQ: Bern, SwitzerlandReported employees: 51-200 | Bern, Switzerland | 51-200 | Exact match | 52 contacts → |
“Haben Sie eine zündende Idee oder ein innovatives Projekt mit dem Potenzial, unsere Gesellschaft voranzubringen?” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 51 contacts → |
“ESC provides high-quality, accessible coaching and consulting services for nonprofits throughout Southern California.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  ONEOConeoc.orgHQ: Santa Ana, CA, United StatesReported employees: 11-50 | Santa Ana, CA, United States | 11-50 | Exact match | 49 contacts → |
“OneOC's mission is to accelerate nonprofit success.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  The Osborne Grouposborne-group.comHQ: Richmond Hill, ON, CanadaReported employees: 11-50 | Richmond Hill, ON, Canada | 11-50 | Exact match | 47 contacts → |
“The Osborne Group, a proudly Canadian-owned company, has been supporting organizational success since 1993.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Carter, Advancing Philanthropy Worldwidecarter.globalHQ: Vero Beach, FL, United StatesReported employees: 11-50 | Vero Beach, FL, United States | 11-50 | Exact match | 43 contacts → |
“Co-founded by Bob Carter and Steve Higgins in 2011, Carter selects its team members from the nation’s most respected nonprofit professionals.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Volunteernow USAvolnow.orgHQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 42 contacts → |
“VolunteerNow™ is the nation's driving force of VolunteerPower™-the leading consultancy and innovative solutions provider specializing in population-level change through…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Valtasvaltasgroup.comHQ: Bellevue, WA, United StatesReported employees: 11-50 | Bellevue, WA, United States | 11-50 | Exact match | 40 contacts → |
“Valtas stands for a shift or pivot forward.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Jaffe Management, INCjaffemanagement.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 38 contacts → |
“Jaffe Management is a New York City-based company providing full-and partial-management services to associations & non-profits.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Cummins Aerospacecumminsaerospace.com HQ: Anaheim, CA, United StatesReported employees: Not recorded | Anaheim, CA, United States | Not recorded | Exact match | 36 contacts → |
“Provide Management and Human Resource Consulting” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 34 contacts → |
“180 Degrees Consulting is the world’s largest university-based consultancy providing affordable yet high-quality strategic & operational assistance to socially conscious…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | The Class Consulting Grouptheclassconsultinggroup.org HQ: Cupertino, CA, United StatesReported employees: 51-200 | Cupertino, CA, United States | 51-200 | Exact match | 25 contacts → |
“The Class Consulting Group is a boutique management consulting firm that provides consulting services to thought leaders in nonprofit, and philanthropic spaces.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | The Last Milethelastmile.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 24 contacts → |
“We are The Last Mile and we deliver Consultancy and External Management solutions for events and venues.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | I Need Helpersineedhelpers.com HQ: AustraliaReported employees: 1-10 | Australia | 1-10 | Exact match | 23 contacts → |
“I Need Helpers has established a strong reputation over the last five years in volunteer management.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Inspire INCinspire-inc.orgHQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 22 contacts → |
“Founded in 1998, Inspire is a 501(c)(3) nonprofit offering management and strategy consulting services to leading nonprofit organizations across the United States.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Everdeen DAeverdeen.noHQ: Oslo, NorwayReported employees: 1-10 | Oslo, Norway | 1-10 | Exact match | 21 contacts → |
“Everdeen er et selskap for konsulenter som ønsker friheten og inntektene ved å være selvstendig konsulent, uten all risikoen.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Sevenco Executive Interimsevenco.seHQ: Stockholm, SwedenReported employees: 11-50 | Stockholm, Sweden | 11-50 | Exact match | 21 contacts → |
“Sedan 1963 erbjuder Sevenco strategisk kompetens för utveckling och förändring av verksamhet.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Parkes Philanthropyparkesphilanthropy.com HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 19 contacts → |
“Helping nonprofits grow their impact through mobilizing resources, increasing capacity, and hiring exceptional talent.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  A&s Solutionsassolutions.beHQ: Kokerstraat 2a, BelgiumReported employees: 11-50 | Kokerstraat 2a, Belgium | 11-50 | Exact match | 19 contacts → |
“A&S Solutions is ontstaan vanuit een reële behoefte.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 890 company matches
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Volunteer management consultants: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
889 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 890 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Volunteer management consultants by location
4 lists · largest firstEvery Volunteer management consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for volunteer management consultants?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many volunteer management consultants did RevenueBase find worldwide?
The saved snapshot records 890 matching company records, 5,490 tracked contacts and 984 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 volunteer management consultants worldwide. Snapshot: September 29, 2026. https://revenuebase.ai/companies/browse/volunteer-management-consultants.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 volunteer management consultants worldwide
RevenueBase records 890 matching company records for volunteer management consultants worldwide, with 5,490 tracked contacts and 984 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 volunteer management consultants worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Nonprofit Hr, Powered By Onedigitalnonprofithr.com HQ: Washington, DC, United StatesReported employees: 10001+ | Washington, DC, United States | 10001+ | Exact match | 300 contacts → |
“Nonprofit HR was founded with one goal in mind: to strengthen the social impact sector by strengthening its people.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: İstanbul, TürkiyeReported employees: Not recorded | İstanbul, Türkiye | Not recorded | Exact match | 201 contacts → |
“Özel Sektör Gönüllüleri Derneği (ÖSGD) şirketler için “Çalışan Gönüllülüğü Programları” geliştirilmesi, çalışanların gönüllü olarak bilgi ve deneyimlerini paylaşabilecekleri…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Fundación EDEedefundazioa.org HQ: Bilbao, SpainReported employees: 201-500 | Bilbao, Spain | 201-500 | Exact match | 150 contacts → |
“entidad que se dedica a la promoción social y en especial tienen servicios dedicados a la formación de voluntariado y profesionales, servicios de consultoría organizacional y…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Empower Success Corpsempowersuccesscorps.org HQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 74 contacts → |
“At ESC, our mission is to empower nonprofits to achieve their goals & contribute to a more just and equitable world.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Action Planningactionplanning.co.uk HQ: Beeston, United KingdomReported employees: Not recorded | Beeston, United Kingdom | Not recorded | Exact match | 61 contacts → |
“Action Planning is a leading management consultancy for the not-for-profit sector.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Endeavour Consulting For Non-Profitsendeavourvolunteer.ca HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 59 contacts → |
“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.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Eastside Peopleeastsidepeople.org HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 58 contacts → |
“Eastside People is a community of experienced professionals focused on helping charity, not-for-profit and social enterprise leaders to build the capacity and impact of their…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | innovage.chinnovage.ch HQ: Bern, SwitzerlandReported employees: 51-200 | Bern, Switzerland | 51-200 | Exact match | 52 contacts → |
“Haben Sie eine zündende Idee oder ein innovatives Projekt mit dem Potenzial, unsere Gesellschaft voranzubringen?” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Los Angeles, CA, United StatesReported employees: 51-200 | Los Angeles, CA, United States | 51-200 | Exact match | 51 contacts → |
“ESC provides high-quality, accessible coaching and consulting services for nonprofits throughout Southern California.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | ONEOConeoc.org HQ: Santa Ana, CA, United StatesReported employees: 11-50 | Santa Ana, CA, United States | 11-50 | Exact match | 49 contacts → |
“OneOC's mission is to accelerate nonprofit success.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | The Osborne Grouposborne-group.com HQ: Richmond Hill, ON, CanadaReported employees: 11-50 | Richmond Hill, ON, Canada | 11-50 | Exact match | 47 contacts → |
“The Osborne Group, a proudly Canadian-owned company, has been supporting organizational success since 1993.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Carter, Advancing Philanthropy Worldwidecarter.global HQ: Vero Beach, FL, United StatesReported employees: 11-50 | Vero Beach, FL, United States | 11-50 | Exact match | 43 contacts → |
“Co-founded by Bob Carter and Steve Higgins in 2011, Carter selects its team members from the nation’s most respected nonprofit professionals.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Volunteernow USAvolnow.org HQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 42 contacts → |
“VolunteerNow™ is the nation's driving force of VolunteerPower™-the leading consultancy and innovative solutions provider specializing in population-level change through…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Valtasvaltasgroup.com HQ: Bellevue, WA, United StatesReported employees: 11-50 | Bellevue, WA, United States | 11-50 | Exact match | 40 contacts → |
“Valtas stands for a shift or pivot forward.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Jaffe Management, INCjaffemanagement.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 38 contacts → |
“Jaffe Management is a New York City-based company providing full-and partial-management services to associations & non-profits.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Cummins Aerospacecumminsaerospace.com HQ: Anaheim, CA, United StatesReported employees: Not recorded | Anaheim, CA, United States | Not recorded | Exact match | 36 contacts → |
“Provide Management and Human Resource Consulting” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Mumbai, IndiaReported employees: 11-50 | Mumbai, India | 11-50 | Exact match | 34 contacts → |
“180 Degrees Consulting is the world’s largest university-based consultancy providing affordable yet high-quality strategic & operational assistance to socially conscious…” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | The Class Consulting Grouptheclassconsultinggroup.org HQ: Cupertino, CA, United StatesReported employees: 51-200 | Cupertino, CA, United States | 51-200 | Exact match | 25 contacts → |
“The Class Consulting Group is a boutique management consulting firm that provides consulting services to thought leaders in nonprofit, and philanthropic spaces.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | The Last Milethelastmile.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 24 contacts → |
“We are The Last Mile and we deliver Consultancy and External Management solutions for events and venues.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | I Need Helpersineedhelpers.com HQ: AustraliaReported employees: 1-10 | Australia | 1-10 | Exact match | 23 contacts → |
“I Need Helpers has established a strong reputation over the last five years in volunteer management.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Inspire INCinspire-inc.org HQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 22 contacts → |
“Founded in 1998, Inspire is a 501(c)(3) nonprofit offering management and strategy consulting services to leading nonprofit organizations across the United States.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Everdeen DAeverdeen.no HQ: Oslo, NorwayReported employees: 1-10 | Oslo, Norway | 1-10 | Exact match | 21 contacts → |
“Everdeen er et selskap for konsulenter som ønsker friheten og inntektene ved å være selvstendig konsulent, uten all risikoen.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Sevenco Executive Interimsevenco.se HQ: Stockholm, SwedenReported employees: 11-50 | Stockholm, Sweden | 11-50 | Exact match | 21 contacts → |
“Sedan 1963 erbjuder Sevenco strategisk kompetens för utveckling och förändring av verksamhet.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Parkes Philanthropyparkesphilanthropy.com HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 19 contacts → |
“Helping nonprofits grow their impact through mobilizing resources, increasing capacity, and hiring exceptional talent.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | A&s Solutionsassolutions.be HQ: Kokerstraat 2a, BelgiumReported employees: 11-50 | Kokerstraat 2a, Belgium | 11-50 | Exact match | 19 contacts → |
“A&S Solutions is ontstaan vanuit een reële behoefte.” Recorded description excerpt · September 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 890 company matches
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Volunteer management consultants: dataset insights
September 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
889 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 890 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Volunteer management consultants by location
4 lists · largest firstEvery Volunteer management consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for volunteer management consultants?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many volunteer management consultants did RevenueBase find worldwide?
The saved snapshot records 890 matching company records, 5,490 tracked contacts and 984 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 volunteer management consultants worldwide. Snapshot: September 29, 2026. https://revenuebase.ai/companies/browse/volunteer-management-consultants.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗