Company lists · Data refreshed November 2026
Top 25 Activist investors worldwide
RevenueBase identified 146 company matches for activist investors worldwide as of November 2026 and tracks 1,031 professional contacts across them, including 372 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers company matches for activist investors 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 November 6, 2026. Country and city lists for activist investors 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 activist investors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 113 contacts → | ||||
Exact match “Kingsdale has protected more Canadian boards and secured more shareholder votes for Canadian issuers than any other firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 69 contacts → | ||||
Exact match “JANA Partners is an activist investment firm founded in 2001 by Barry Rosenstein.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 36 contacts → | ||||
Exact match “The Interfaith Center on Corporate Responsibility (ICCR) is a broad coalition of more than 300 institutional investors collectively representing over $4 trillion in invested…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 28 contacts → | ||||
Exact match “Headlands Capital is a boutique investment firm with more than $750 million in AUM, headquartered in San Francisco, with offices in New York, London and Bangalore.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 28 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 24 contacts → | ||||
Exact match “Founded in 1996, Prosperity Capital Management (“PCM”) is an institutional investment manager employing a fundamental value, active and engaged shareholder approach.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 24 contacts → | ||||
Exact match “Climate change is a problem we can solve when Big Oil starts investing their brains and billions into the clean energy transition.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 22 contacts → | ||||
Exact match “Value Capital Partners (VCP) is an investment company which takes minority positions in listed companies and becomes an engaged shareholder in those entities to drive maximum…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 14 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 13 contacts → | ||||
Exact match “New Media Ventures is the first national network of early stage investors supporting startups that create progressive political change.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 12 contacts → | ||||
Exact match “Adasina Social Capital (“Adasina”) is an investment and financial activism firm that serves as a critical bridge between financial markets and social justice movements for the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 12 contacts → | ||||
Exact match “Just Share is a non-profit shareholder activism and responsible investment organisation that promotes the use of investor power for a fairer South Africa.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 12 contacts → | ||||
Exact match “Tulipshare is an activist investor and shareholder advocacy group on a mission to help investors push for stronger environmental and social commitments, using corporate governance…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 11 contacts → | ||||
Exact match “At LSIG we don’t just invest, we build, challenge, and transform.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 10 contacts → | ||||
Exact match “Fivespan Partners, LP is a concentrated, fundamental value investor in industry-leading public companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 10 contacts → | ||||
Exact match “Harwood Capital LLP was incorporated in 2003 and now includes the investment activities which Christopher Mills previously undertook within the JOHCM group since 1993.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 10 contacts → | ||||
Exact match “Accendo Capital manages an event-driven activist strategy investing in shares of publicly listed companies based in Northern Europe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 9 contacts → | ||||
Exact match “Arkhouse is a New York-based investment firm that takes a private equity approach to investing in the public markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 9 contacts → | ||||
Exact match “325 Capital is a long-term, significant, minority owner of high-quality, small, public companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 9 contacts → | ||||
Exact match “Brosh Capital Partners was established in January 2013.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 9 contacts → | ||||
Exact match “An "Active Ownership" investment manager with public and private strategies” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 9 contacts → | ||||
Exact match “Strategic Capital, one of the only Tokyo-based activist hedge funds, invests in publicly traded, asset-rich, stable Japanese companies that are at substantial discounts to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 9 contacts → | ||||
Exact match “Clarke is an investment company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 9 contacts → | ||||
Exact match “Act (act).(act)/.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 8 contacts → | ||||
Exact match “Schörling är ett aktivt och långsiktigt ägarbolag.” Recorded in the RevenueBase company graph · Nov 6, 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 “activist investors”. 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 146 activist investors worldwide
See the full list, filter by size, metro and specialty, and access 372 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Activist investors worldwide at a glance
As of Nov 6, 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 activist investors are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “activist investors” 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 372 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 November 6, 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.
Activist investors by location
1 lists · largest firstEvery Activist investors 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 “activist investors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many activist investors are there worldwide?
RevenueBase identified 146 company matches for activist investors worldwide as of November 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?
Kingsdale Advisors tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most activist investors?
The United States leads with 48 companies. Every activist investors list by country and city is linked on this page.
Which city has the most activist investors?
New York leads with 22 company records, followed by London (14) and Stockholm (5).
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 372 professional contacts with verified work emails tracked across these 146 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 146 activist investors 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 activist investors worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 146 matching company records for activist investors worldwide, with 1,031 tracked contacts and 372 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: November 6, 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 activist investors 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 |  Kingsdale Advisorskingsdaleadvisors.comHQ: Toronto, CanadaReported employees: 51-200 | Toronto, Canada | 51-200 | Exact match | 113 contacts → |
“Kingsdale has protected more Canadian boards and secured more shareholder votes for Canadian issuers than any other firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Jana Partnersjanapartners.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 69 contacts → |
“JANA Partners is an activist investment firm founded in 2001 by Barry Rosenstein.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 36 contacts → |
“The Interfaith Center on Corporate Responsibility (ICCR) is a broad coalition of more than 300 institutional investors collectively representing over $4 trillion in invested…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Headlands Capitalheadlandscap.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 28 contacts → |
“Headlands Capital is a boutique investment firm with more than $750 million in AUM, headquartered in San Francisco, with offices in New York, London and Bangalore.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  180 Degree Capital Corp180degreecapital.comHQ: Montclair, NJ, United StatesReported employees: 1-10 | Montclair, NJ, United States | 1-10 | Exact match | 28 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 6 |  Prosperity Capital Managementprosperitycapital.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 24 contacts → |
“Founded in 1996, Prosperity Capital Management (“PCM”) is an institutional investment manager employing a fundamental value, active and engaged shareholder approach.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Follow This Shareholders For Goodfollow-this.orgHQ: Amsterdam, NetherlandsReported employees: 11-50 | Amsterdam, Netherlands | 11-50 | Exact match | 24 contacts → |
“Climate change is a problem we can solve when Big Oil starts investing their brains and billions into the clean energy transition.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Value Capital Partnersvaluecapital.co.zaHQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 22 contacts → |
“Value Capital Partners (VCP) is an investment company which takes minority positions in listed companies and becomes an engaged shareholder in those entities to drive maximum…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Impactive Capitalimpactivecapital.comHQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 14 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 |  NEW Media Ventures NMVnewmediaventures.orgHQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 13 contacts → |
“New Media Ventures is the first national network of early stage investors supporting startups that create progressive political change.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Adasina Social Capitaladasina.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 12 contacts → |
“Adasina Social Capital (“Adasina”) is an investment and financial activism firm that serves as a critical bridge between financial markets and social justice movements for the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Just Share SAjustshare.org.zaHQ: Cape Town, South AfricaReported employees: 1-10 | Cape Town, South Africa | 1-10 | Exact match | 12 contacts → |
“Just Share is a non-profit shareholder activism and responsible investment organisation that promotes the use of investor power for a fairer South Africa.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Tulipsharetulipshare.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Tulipshare is an activist investor and shareholder advocacy group on a mission to help investors push for stronger environmental and social commitments, using corporate governance…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  LSIGl-sig.comHQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 11 contacts → |
“At LSIG we don’t just invest, we build, challenge, and transform.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Fivespan Partnersfivespan.comHQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 10 contacts → |
“Fivespan Partners, LP is a concentrated, fundamental value investor in industry-leading public companies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Harwood Capital Management LTDharwoodcapital.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Harwood Capital LLP was incorporated in 2003 and now includes the investment activities which Christopher Mills previously undertook within the JOHCM group since 1993.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Accendo Capitalaccendofund.comHQ: Stockholm, LuxembourgReported employees: 11-50 | Stockholm, Luxembourg | 11-50 | Exact match | 10 contacts → |
“Accendo Capital manages an event-driven activist strategy investing in shares of publicly listed companies based in Northern Europe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Arkhousearkhousefund.comHQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 9 contacts → |
“Arkhouse is a New York-based investment firm that takes a private equity approach to investing in the public markets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  325 Capital325capital.comHQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 9 contacts → |
“325 Capital is a long-term, significant, minority owner of high-quality, small, public companies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Brosh Capital Partnersbroshcapital.co.ilHQ: Givataim, IsraelReported employees: 1-10 | Givataim, Israel | 1-10 | Exact match | 9 contacts → |
“Brosh Capital Partners was established in January 2013.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Viburnum Fundsviburnumfunds.com.auHQ: Nedlands, AustraliaReported employees: 11-50 | Nedlands, Australia | 11-50 | Exact match | 9 contacts → |
“An "Active Ownership" investment manager with public and private strategies” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Strategic Capital, INCstracap.jpHQ: Tokyo, JapanReported employees: 11-50 | Tokyo, Japan | 11-50 | Exact match | 9 contacts → |
“Strategic Capital, one of the only Tokyo-based activist hedge funds, invests in publicly traded, asset-rich, stable Japanese companies that are at substantial discounts to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Clarke INCclarkeinc.comHQ: Halifax, NS, CanadaReported employees: 1-10 | Halifax, NS, Canada | 1-10 | Exact match | 9 contacts → |
“Clarke is an investment company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  주식회사 컨두잇act.agHQ: 서울시, South KoreaReported employees: 1-10 | 서울시, South Korea | 1-10 | Exact match | 9 contacts → |
“Act (act).(act)/.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Schörlingschorlingab.seHQ: Stockholm, SwedenReported employees: 1-10 | Stockholm, Sweden | 1-10 | Exact match | 8 contacts → |
“Schörling är ett aktivt och långsiktigt ägarbolag.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 146 company matches
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Activist investors: dataset insights
November 6, 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
146 records in the displayed employee bands.
0 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 146 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: November 6, 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 ↗
Activist investors by location
1 lists · largest firstEvery Activist investors 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 activist investors?
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 activist investors did RevenueBase find worldwide?
The saved snapshot records 146 matching company records, 1,031 tracked contacts and 372 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: November 6, 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
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 activist investors worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/activist-investors.
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 activist investors worldwide
RevenueBase records 146 matching company records for activist investors worldwide, with 1,031 tracked contacts and 372 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: November 6, 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 activist investors 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 | Kingsdale Advisorskingsdaleadvisors.com HQ: Toronto, CanadaReported employees: 51-200 | Toronto, Canada | 51-200 | Exact match | 113 contacts → |
“Kingsdale has protected more Canadian boards and secured more shareholder votes for Canadian issuers than any other firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Jana Partnersjanapartners.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 69 contacts → |
“JANA Partners is an activist investment firm founded in 2001 by Barry Rosenstein.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 36 contacts → |
“The Interfaith Center on Corporate Responsibility (ICCR) is a broad coalition of more than 300 institutional investors collectively representing over $4 trillion in invested…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Headlands Capitalheadlandscap.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 28 contacts → |
“Headlands Capital is a boutique investment firm with more than $750 million in AUM, headquartered in San Francisco, with offices in New York, London and Bangalore.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 180 Degree Capital Corp180degreecapital.com HQ: Montclair, NJ, United StatesReported employees: 1-10 | Montclair, NJ, United States | 1-10 | Exact match | 28 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 6 | Prosperity Capital Managementprosperitycapital.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 24 contacts → |
“Founded in 1996, Prosperity Capital Management (“PCM”) is an institutional investment manager employing a fundamental value, active and engaged shareholder approach.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Follow This Shareholders For Goodfollow-this.org HQ: Amsterdam, NetherlandsReported employees: 11-50 | Amsterdam, Netherlands | 11-50 | Exact match | 24 contacts → |
“Climate change is a problem we can solve when Big Oil starts investing their brains and billions into the clean energy transition.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Value Capital Partnersvaluecapital.co.za HQ: Johannesburg, South AfricaReported employees: 11-50 | Johannesburg, South Africa | 11-50 | Exact match | 22 contacts → |
“Value Capital Partners (VCP) is an investment company which takes minority positions in listed companies and becomes an engaged shareholder in those entities to drive maximum…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Impactive Capitalimpactivecapital.com HQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 14 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | NEW Media Ventures NMVnewmediaventures.org HQ: San Francisco, CA, United StatesReported employees: 1-10 | San Francisco, CA, United States | 1-10 | Exact match | 13 contacts → |
“New Media Ventures is the first national network of early stage investors supporting startups that create progressive political change.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Adasina Social Capitaladasina.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 12 contacts → |
“Adasina Social Capital (“Adasina”) is an investment and financial activism firm that serves as a critical bridge between financial markets and social justice movements for the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Just Share SAjustshare.org.za HQ: Cape Town, South AfricaReported employees: 1-10 | Cape Town, South Africa | 1-10 | Exact match | 12 contacts → |
“Just Share is a non-profit shareholder activism and responsible investment organisation that promotes the use of investor power for a fairer South Africa.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Tulipsharetulipshare.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Tulipshare is an activist investor and shareholder advocacy group on a mission to help investors push for stronger environmental and social commitments, using corporate governance…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | LSIGl-sig.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 11 contacts → |
“At LSIG we don’t just invest, we build, challenge, and transform.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Fivespan Partnersfivespan.com HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 10 contacts → |
“Fivespan Partners, LP is a concentrated, fundamental value investor in industry-leading public companies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Harwood Capital Management LTDharwoodcapital.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Harwood Capital LLP was incorporated in 2003 and now includes the investment activities which Christopher Mills previously undertook within the JOHCM group since 1993.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Accendo Capitalaccendofund.com HQ: Stockholm, LuxembourgReported employees: 11-50 | Stockholm, Luxembourg | 11-50 | Exact match | 10 contacts → |
“Accendo Capital manages an event-driven activist strategy investing in shares of publicly listed companies based in Northern Europe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Arkhousearkhousefund.com HQ: New York, NY, United StatesReported employees: 1-10 | New York, NY, United States | 1-10 | Exact match | 9 contacts → |
“Arkhouse is a New York-based investment firm that takes a private equity approach to investing in the public markets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | 325 Capital325capital.com HQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 9 contacts → |
“325 Capital is a long-term, significant, minority owner of high-quality, small, public companies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Brosh Capital Partnersbroshcapital.co.il HQ: Givataim, IsraelReported employees: 1-10 | Givataim, Israel | 1-10 | Exact match | 9 contacts → |
“Brosh Capital Partners was established in January 2013.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Viburnum Fundsviburnumfunds.com.au HQ: Nedlands, AustraliaReported employees: 11-50 | Nedlands, Australia | 11-50 | Exact match | 9 contacts → |
“An "Active Ownership" investment manager with public and private strategies” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Strategic Capital, INCstracap.jp HQ: Tokyo, JapanReported employees: 11-50 | Tokyo, Japan | 11-50 | Exact match | 9 contacts → |
“Strategic Capital, one of the only Tokyo-based activist hedge funds, invests in publicly traded, asset-rich, stable Japanese companies that are at substantial discounts to…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Clarke INCclarkeinc.com HQ: Halifax, NS, CanadaReported employees: 1-10 | Halifax, NS, Canada | 1-10 | Exact match | 9 contacts → |
“Clarke is an investment company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | 주식회사 컨두잇act.ag HQ: 서울시, South KoreaReported employees: 1-10 | 서울시, South Korea | 1-10 | Exact match | 9 contacts → |
“Act (act).(act)/.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Schörlingschorlingab.se HQ: Stockholm, SwedenReported employees: 1-10 | Stockholm, Sweden | 1-10 | Exact match | 8 contacts → |
“Schörling är ett aktivt och långsiktigt ägarbolag.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 146 company matches
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Activist investors: dataset insights
November 6, 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
146 records in the displayed employee bands.
0 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 146 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: November 6, 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 ↗
Activist investors by location
1 lists · largest firstEvery Activist investors 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 activist investors?
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 activist investors did RevenueBase find worldwide?
The saved snapshot records 146 matching company records, 1,031 tracked contacts and 372 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: November 6, 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.
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Cite this list
RevenueBase Data Team. Top 25 activist investors worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/activist-investors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗