Company lists · Data refreshed September 2026
Top 25 Open source intelligence providers worldwide
RevenueBase identified 464 company matches for open source intelligence providers worldwide as of September 2026 and tracks 2,741 professional contacts across them, including 873 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for open source intelligence providers 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 20, 2026. Country and city lists for open source intelligence providers 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 open source intelligence providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 164 contacts → | ||||
Exact match “Maltego is the world’s most used all-in-one investigation platform that turns complex data into actionable insights in minutes.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 137 contacts → | ||||
Exact match “Fivecast delivers open-source intelligence solutions built for clarity, powered by AI, and trusted to surface what matters.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 125 contacts → | ||||
Exact match “DarkStar Intelligence is a Service-Disabled Veteran-Owned Small Business (SDVOSB) delivering advanced intelligence solutions to government and private sectors.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 90 contacts → | ||||
Exact match “Our purpose is to make the world safer by empowering the human mind with the right information at the right time.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 89 contacts → | ||||
Exact match “At Liferaft, we specialize in Open Source Intelligence (OSINT) solutions that empower organizations to make informed decisions based on real-time data and insights.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 75 contacts → | ||||
Exact match “ShadowDragon® provides OSINT tools that help organizations identify individuals, investigate digital activity, and monitor evolving threats across online environments.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 71 contacts → | ||||
Exact match “QSL was established in 2023.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 66 contacts → | ||||
Exact match “NetWatch Global® specialise in online investigations and are experts in social media and open source investigation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 60 contacts → | ||||
Exact match “Synthesis is a Creative Data Consultancy based in Singapore, New York and London.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 58 contacts → | ||||
Exact match “Skopenow enables organizations to efficiently collect and analyze open-source intelligence to uncover threats and detect fraud.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 53 contacts → | ||||
Exact match “Semantic Visions uses automated open source intelligence technology powered by machine learning and linguistic expertise to analyze most online global news to discover precisely…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 52 contacts → | ||||
Exact match “We use open source information to break critical global stories.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 47 contacts → | ||||
Exact match “Storyzy's platform empowers investigators to detect information manipulation and retrieve intelligence from open sources.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 43 contacts → | ||||
Exact match “Social Links is a Global OSINT (Open source intelligence) vendor with HQ in the US that empowers investigators and security professionals with ground-breaking AI-powered products.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 43 contacts → | ||||
Exact match “To fight online child abuse, human trafficking and fraud, law enforcement agencies and the financial services industry need the best open source intelligence.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 40 contacts → | ||||
Exact match “OSINT FOR UKRAINE is an independent (non-profit) foundation dedicated to use Open Source Intelligence to: Investigate international crimes committed in relation to the…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 32 contacts → | ||||
Exact match “OSINT Combine is a veteran-operated company specializing in mission-focused technology, practitioner-led training and expert enablement that helps organizations build enduring…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 31 contacts → | ||||
Exact match “FORESIGHT is a technology-enabled information provider and virtual consultancy company.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 28 contacts → | ||||
Exact match “IMSL offers the ProQual Level 1 & Level 3 Award in Open Source Intelligence (OSINT) Training Course as well as in depth Intelligence Analysis Training.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 27 contacts → | ||||
Exact match “Osavul is a technology company that offers OSINT-powered AI solutions for situational awareness to empower governments, security organizations, and enterprises to effectively…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 27 contacts → | ||||
Exact match “OSINT Industries is an automated & scalable email, phone number & username checker tool for Law Enforcement, Private Investigators, Government and OSINT Practitioners.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 26 contacts → | ||||
Exact match “Driving the age of AI.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 24 contacts → | ||||
Exact match “LeadSpotting is a next-generation Open-Source Intelligence (OSINT) company that transforms public and corporate data into actionable insights for AI-powered services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 23 contacts → | ||||
Exact match “Falkor is an AI-driven investigation hub that centralizes internal and external data-OSINT, SIGINT, dark web, geospatial, and more-into one secure, collaborative workspace.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 23 contacts → | ||||
Exact match “Sastre is a research consultancy, a global collective of multi-lingual corporate investigations professionals and public policy analysts who specialise in modern open source…” Recorded in the RevenueBase company graph · Sep 20, 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 “open source intelligence providers”. 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 464 open source intelligence providers worldwide
See the full list, filter by size, metro and specialty, and access 873 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Open source intelligence providers worldwide at a glance
As of Sep 20, 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 open source intelligence providers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “open source intelligence providers” 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 873 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 20, 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.
Open source intelligence providers by location
2 lists · largest firstEvery Open source intelligence providers 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 “open source intelligence providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many open source intelligence providers are there worldwide?
RevenueBase identified 464 company matches for open source intelligence providers 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?
Maltego tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most open source intelligence providers?
The United States leads with 81 companies, followed by the United Kingdom (47). Every open source intelligence providers list by country and city is linked on this page.
Which city has the most open source intelligence providers?
London leads with 27 company records, followed by Paris (15) and Tel Aviv (9).
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 873 professional contacts with verified work emails tracked across these 464 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 464 open source intelligence providers 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 open source intelligence providers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 464 matching company records for open source intelligence providers worldwide, with 2,741 tracked contacts and 873 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 20, 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 open source intelligence providers 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 |  Maltegomaltego.comHQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 164 contacts → |
“Maltego is the world’s most used all-in-one investigation platform that turns complex data into actionable insights in minutes.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Fivecastfivecast.comHQ: Adelaide, AustraliaReported employees: 51-200 | Adelaide, Australia | 51-200 | Exact match | 137 contacts → |
“Fivecast delivers open-source intelligence solutions built for clarity, powered by AI, and trusted to surface what matters.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Darkstar Intelligencedarkstarintel.comHQ: Alexandria, VA, United StatesReported employees: 51-200 | Alexandria, VA, United States | 51-200 | Exact match | 125 contacts → |
“DarkStar Intelligence is a Service-Disabled Veteran-Owned Small Business (SDVOSB) delivering advanced intelligence solutions to government and private sectors.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Tadawebtadaweb.com HQ: LuxembourgReported employees: 51-200 | Luxembourg | 51-200 | Exact match | 90 contacts → |
“Our purpose is to make the world safer by empowering the human mind with the right information at the right time.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Liferaftliferaftlabs.com HQ: Halifax, NS, CanadaReported employees: 51-200 | Halifax, NS, Canada | 51-200 | Exact match | 89 contacts → |
“At Liferaft, we specialize in Open Source Intelligence (OSINT) solutions that empower organizations to make informed decisions based on real-time data and insights.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Shadowdragonshadowdragon.ioHQ: Wilmington, United StatesReported employees: 51-200 | Wilmington, United States | 51-200 | Exact match | 75 contacts → |
“ShadowDragon® provides OSINT tools that help organizations identify individuals, investigate digital activity, and monitor evolving threats across online environments.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Quick Services LLC QSLquickservicesllc.com HQ: Fayetteville, NC, United StatesReported employees: 51-200 | Fayetteville, NC, United States | 51-200 | Exact match | 71 contacts → |
“QSL was established in 2023.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Netwatch Globalnetwatchglobal.comHQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 66 contacts → |
“NetWatch Global® specialise in online investigations and are experts in social media and open source investigation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Synthesissynthesis.partnersHQ: SingaporeReported employees: 51-200 | Singapore | 51-200 | Exact match | 60 contacts → |
“Synthesis is a Creative Data Consultancy based in Singapore, New York and London.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Skopenowskopenow.comHQ: NY, United StatesReported employees: 51-200 | NY, United States | 51-200 | Exact match | 58 contacts → |
“Skopenow enables organizations to efficiently collect and analyze open-source intelligence to uncover threats and detect fraud.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Semantic Visionssemantic-visions.comHQ: Prague 1, Czech RepublicReported employees: 51-200 | Prague 1, Czech Republic | 51-200 | Exact match | 53 contacts → |
“Semantic Visions uses automated open source intelligence technology powered by machine learning and linguistic expertise to analyze most online global news to discover precisely…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Bellingcatbellingcat.com HQ: Amsterdam, NetherlandsReported employees: 11-50 | Amsterdam, Netherlands | 11-50 | Exact match | 52 contacts → |
“We use open source information to break critical global stories.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Storyzystoryzy.comHQ: Paris, FranceReported employees: 11-50 | Paris, France | 11-50 | Exact match | 47 contacts → |
“Storyzy's platform empowers investigators to detect information manipulation and retrieve intelligence from open sources.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Social Linkssociallinks.io HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 43 contacts → |
“Social Links is a Global OSINT (Open source intelligence) vendor with HQ in the US that empowers investigators and security professionals with ground-breaking AI-powered products.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Web-Iqweb-iq.comHQ: Groningen, NetherlandsReported employees: 11-50 | Groningen, Netherlands | 11-50 | Exact match | 43 contacts → |
“To fight online child abuse, human trafficking and fraud, law enforcement agencies and the financial services industry need the best open source intelligence.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Osint For Ukraineosintforukraine.com HQ: The Hague, NetherlandsReported employees: 51-200 | The Hague, Netherlands | 51-200 | Exact match | 40 contacts → |
“OSINT FOR UKRAINE is an independent (non-profit) foundation dedicated to use Open Source Intelligence to: Investigate international crimes committed in relation to the…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Osint Combineosintcombine.com HQ: Sydney, DC, AustraliaReported employees: 11-50 | Sydney, DC, Australia | 11-50 | Exact match | 32 contacts → |
“OSINT Combine is a veteran-operated company specializing in mission-focused technology, practitioner-led training and expert enablement that helps organizations build enduring…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Foresight Reportsforesightreports.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 31 contacts → |
“FORESIGHT is a technology-enabled information provider and virtual consultancy company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | IMSLintelmsl.com HQ: Corsham, United KingdomReported employees: 11-50 | Corsham, United Kingdom | 11-50 | Exact match | 28 contacts → |
“IMSL offers the ProQual Level 1 & Level 3 Award in Open Source Intelligence (OSINT) Training Course as well as in depth Intelligence Analysis Training.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Osavulosavul.cloudHQ: Wilmington, DE, United StatesReported employees: 11-50 | Wilmington, DE, United States | 11-50 | Exact match | 27 contacts → |
“Osavul is a technology company that offers OSINT-powered AI solutions for situational awareness to empower governments, security organizations, and enterprises to effectively…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Osint Industriesosint.industries HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 27 contacts → |
“OSINT Industries is an automated & scalable email, phone number & username checker tool for Law Enforcement, Private Investigators, Government and OSINT Practitioners.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Artellenceartellence.com HQ: Pecherskyi District, UkraineReported employees: 11-50 | Pecherskyi District, Ukraine | 11-50 | Exact match | 26 contacts → |
“Driving the age of AI.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Leadspottingleadspotting.comHQ: Haifa, IsraelReported employees: 11-50 | Haifa, Israel | 11-50 | Exact match | 24 contacts → |
“LeadSpotting is a next-generation Open-Source Intelligence (OSINT) company that transforms public and corporate data into actionable insights for AI-powered services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Falkorfalkor.aiHQ: Tel Aviv, IsraelReported employees: 11-50 | Tel Aviv, Israel | 11-50 | Exact match | 23 contacts → |
“Falkor is an AI-driven investigation hub that centralizes internal and external data-OSINT, SIGINT, dark web, geospatial, and more-into one secure, collaborative workspace.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sastre Consultingsastreconsulting.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 23 contacts → |
“Sastre is a research consultancy, a global collective of multi-lingual corporate investigations professionals and public policy analysts who specialise in modern open source…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 464 company matches
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Open source intelligence providers: dataset insights
September 20, 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
464 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 464 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 20, 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 ↗
Open source intelligence providers by location
2 lists · largest firstEvery Open source intelligence providers 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 open source intelligence providers?
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 open source intelligence providers did RevenueBase find worldwide?
The saved snapshot records 464 matching company records, 2,741 tracked contacts and 873 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 20, 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 open source intelligence providers worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/open-source-intelligence-providers.
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 open source intelligence providers worldwide
RevenueBase records 464 matching company records for open source intelligence providers worldwide, with 2,741 tracked contacts and 873 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 20, 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 open source intelligence providers 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 | Maltegomaltego.com HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 164 contacts → |
“Maltego is the world’s most used all-in-one investigation platform that turns complex data into actionable insights in minutes.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Fivecastfivecast.com HQ: Adelaide, AustraliaReported employees: 51-200 | Adelaide, Australia | 51-200 | Exact match | 137 contacts → |
“Fivecast delivers open-source intelligence solutions built for clarity, powered by AI, and trusted to surface what matters.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Darkstar Intelligencedarkstarintel.com HQ: Alexandria, VA, United StatesReported employees: 51-200 | Alexandria, VA, United States | 51-200 | Exact match | 125 contacts → |
“DarkStar Intelligence is a Service-Disabled Veteran-Owned Small Business (SDVOSB) delivering advanced intelligence solutions to government and private sectors.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Tadawebtadaweb.com HQ: LuxembourgReported employees: 51-200 | Luxembourg | 51-200 | Exact match | 90 contacts → |
“Our purpose is to make the world safer by empowering the human mind with the right information at the right time.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Liferaftliferaftlabs.com HQ: Halifax, NS, CanadaReported employees: 51-200 | Halifax, NS, Canada | 51-200 | Exact match | 89 contacts → |
“At Liferaft, we specialize in Open Source Intelligence (OSINT) solutions that empower organizations to make informed decisions based on real-time data and insights.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Shadowdragonshadowdragon.io HQ: Wilmington, United StatesReported employees: 51-200 | Wilmington, United States | 51-200 | Exact match | 75 contacts → |
“ShadowDragon® provides OSINT tools that help organizations identify individuals, investigate digital activity, and monitor evolving threats across online environments.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Quick Services LLC QSLquickservicesllc.com HQ: Fayetteville, NC, United StatesReported employees: 51-200 | Fayetteville, NC, United States | 51-200 | Exact match | 71 contacts → |
“QSL was established in 2023.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Netwatch Globalnetwatchglobal.com HQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 66 contacts → |
“NetWatch Global® specialise in online investigations and are experts in social media and open source investigation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Synthesissynthesis.partners HQ: SingaporeReported employees: 51-200 | Singapore | 51-200 | Exact match | 60 contacts → |
“Synthesis is a Creative Data Consultancy based in Singapore, New York and London.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Skopenowskopenow.com HQ: NY, United StatesReported employees: 51-200 | NY, United States | 51-200 | Exact match | 58 contacts → |
“Skopenow enables organizations to efficiently collect and analyze open-source intelligence to uncover threats and detect fraud.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Semantic Visionssemantic-visions.com HQ: Prague 1, Czech RepublicReported employees: 51-200 | Prague 1, Czech Republic | 51-200 | Exact match | 53 contacts → |
“Semantic Visions uses automated open source intelligence technology powered by machine learning and linguistic expertise to analyze most online global news to discover precisely…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Bellingcatbellingcat.com HQ: Amsterdam, NetherlandsReported employees: 11-50 | Amsterdam, Netherlands | 11-50 | Exact match | 52 contacts → |
“We use open source information to break critical global stories.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Storyzystoryzy.com HQ: Paris, FranceReported employees: 11-50 | Paris, France | 11-50 | Exact match | 47 contacts → |
“Storyzy's platform empowers investigators to detect information manipulation and retrieve intelligence from open sources.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Social Linkssociallinks.io HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 43 contacts → |
“Social Links is a Global OSINT (Open source intelligence) vendor with HQ in the US that empowers investigators and security professionals with ground-breaking AI-powered products.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Web-Iqweb-iq.com HQ: Groningen, NetherlandsReported employees: 11-50 | Groningen, Netherlands | 11-50 | Exact match | 43 contacts → |
“To fight online child abuse, human trafficking and fraud, law enforcement agencies and the financial services industry need the best open source intelligence.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Osint For Ukraineosintforukraine.com HQ: The Hague, NetherlandsReported employees: 51-200 | The Hague, Netherlands | 51-200 | Exact match | 40 contacts → |
“OSINT FOR UKRAINE is an independent (non-profit) foundation dedicated to use Open Source Intelligence to: Investigate international crimes committed in relation to the…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Osint Combineosintcombine.com HQ: Sydney, DC, AustraliaReported employees: 11-50 | Sydney, DC, Australia | 11-50 | Exact match | 32 contacts → |
“OSINT Combine is a veteran-operated company specializing in mission-focused technology, practitioner-led training and expert enablement that helps organizations build enduring…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Foresight Reportsforesightreports.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 31 contacts → |
“FORESIGHT is a technology-enabled information provider and virtual consultancy company.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | IMSLintelmsl.com HQ: Corsham, United KingdomReported employees: 11-50 | Corsham, United Kingdom | 11-50 | Exact match | 28 contacts → |
“IMSL offers the ProQual Level 1 & Level 3 Award in Open Source Intelligence (OSINT) Training Course as well as in depth Intelligence Analysis Training.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Osavulosavul.cloud HQ: Wilmington, DE, United StatesReported employees: 11-50 | Wilmington, DE, United States | 11-50 | Exact match | 27 contacts → |
“Osavul is a technology company that offers OSINT-powered AI solutions for situational awareness to empower governments, security organizations, and enterprises to effectively…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Osint Industriesosint.industries HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 27 contacts → |
“OSINT Industries is an automated & scalable email, phone number & username checker tool for Law Enforcement, Private Investigators, Government and OSINT Practitioners.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Artellenceartellence.com HQ: Pecherskyi District, UkraineReported employees: 11-50 | Pecherskyi District, Ukraine | 11-50 | Exact match | 26 contacts → |
“Driving the age of AI.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Leadspottingleadspotting.com HQ: Haifa, IsraelReported employees: 11-50 | Haifa, Israel | 11-50 | Exact match | 24 contacts → |
“LeadSpotting is a next-generation Open-Source Intelligence (OSINT) company that transforms public and corporate data into actionable insights for AI-powered services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Falkorfalkor.ai HQ: Tel Aviv, IsraelReported employees: 11-50 | Tel Aviv, Israel | 11-50 | Exact match | 23 contacts → |
“Falkor is an AI-driven investigation hub that centralizes internal and external data-OSINT, SIGINT, dark web, geospatial, and more-into one secure, collaborative workspace.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sastre Consultingsastreconsulting.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 23 contacts → |
“Sastre is a research consultancy, a global collective of multi-lingual corporate investigations professionals and public policy analysts who specialise in modern open source…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Open source intelligence providers: dataset insights
September 20, 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
464 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 464 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 20, 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 ↗
Open source intelligence providers by location
2 lists · largest firstEvery Open source intelligence providers 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 open source intelligence providers?
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 open source intelligence providers did RevenueBase find worldwide?
The saved snapshot records 464 matching company records, 2,741 tracked contacts and 873 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 20, 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 open source intelligence providers worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/open-source-intelligence-providers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗