Company lists · Data refreshed September 2026
Top 25 Family office security providers worldwide
RevenueBase identified 5,031 family office security providers worldwide as of September 2026 and tracks 69,742 professional contacts across them, including 13,886 with verified work emails. The United States is the largest market and London the largest hub.
This list covers family office security providers worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026. Country and city lists for family office security providers follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest family office security providers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,500 contacts → | ||||
Partial evidence “The industry leader in security, Security Industry Specialists offers unique solutions to Fortune 500 companies, international events, and celebrity clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,664 contacts → | ||||
Partial evidence “We’re here to help you build financial security and grow your wealth with confidence.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,346 contacts → | ||||
Strong evidence “Privately owned and independent, Bessemer Trust is a family office that has served individuals and families of substantial wealth for 118 years.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 4 | 924 contacts → | ||||
Indirect evidence “A Corpvs Segurança, fundada em 18 de janeiro de 1975 possui hoje 36 anos de serviços prestados com total excelência aos seus clientes.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 5 | 813 contacts → | ||||
Indirect evidence “We are ZEDRA.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 6 | 797 contacts → | ||||
Strong evidence “Bay Alarm is a family-owned national security company in operation since 1946.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 7 | 593 contacts → | ||||
Partial evidence “Welcome to Al Sraiya Security Services!” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 8 | 592 contacts → | ||||
Indirect evidence “TBI segurança atua na área de vigilância e segurança patrimonial privada oferecendo ao mercado profissionais altamente treinados, dotados de qualificação e postura diferenciadas…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 9 | 553 contacts → | ||||
Partial evidence “Security Alliance is a highly experienced provider of security solutions for private and business environments.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 10 | 535 contacts → | ||||
Indirect evidence “O Grupo Interfort foi fundado em possui presença expressiva em 7 estados (RN, PB, PE, BA, ES, DF e SP) e é líder de mercado nos segmentos de atuação, reforçando seu posicionamento…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 11 | 486 contacts → | ||||
Indirect evidence “Para empresas, comercios y personas que necesitan proteger sus bienes e inmuebles.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 12 | 472 contacts → | ||||
Indirect evidence “Cresset is a firm built by clients, for clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 13 | 426 contacts → | ||||
Partial evidence “Established in 1976, Summit is one of the largest privately owned security services firms in the United States.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 14 | 419 contacts → | ||||
Partial evidence “Ward is an award winning, privately owned business, providing bespoke risk and security solutions including protective security personnel, explosive search dogs, narcotic search…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 15 | 378 contacts → | ||||
Indirect evidence “IVRI, Istituti di Vigilanza Riuniti d’Italia, è leader nel settore della sicurezza su tutto il territorio nazionale, con specifiche competenze nella progettazione di attività…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 16 | 346 contacts → | ||||
Indirect evidence “Clece Seguridad nace con el objetivo de prestar soluciones integrales de protección y seguridad a personas, empresas e instituciones bajo un concepto de seguridad integral…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 17 | 339 contacts → | ||||
Indirect evidence “Certificación ISO 9001 de calidad de servicio.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 18 | 338 contacts → | ||||
Partial evidence “iidon Security Associates provides premier security services catered to your company's needs.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 19 | 335 contacts → | ||||
Indirect evidence “Private Client Select delivers protection curated to the life you choose: Combining the best solutions with unrivaled service and expertise, so you can embrace risk and seize…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 20 | 334 contacts → | ||||
Partial evidence “Welcome to Stark Security Services, Qatar’s premier full service private security company.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 21 | 303 contacts → | ||||
Strong evidence “Whittier Trust is the oldest multi-family office headquartered on the West Coast, with offices in Pasadena, Newport Beach, West Los Angeles, San Francisco, Menlo Park, San Diego…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 22 | 290 contacts → | ||||
Strong evidence “Trove is an independent, fee-only multi-family office serving ultra-high-net-worth families and privately held businesses.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 23 | 271 contacts → | ||||
Indirect evidence “We are experts in protecting what matters most.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 24 | 257 contacts → | ||||
Strong evidence “Client Associates (CA) was founded as India’s first Multi Family Office firm 22+ years ago by first generations private bankers, Rohit Sarin and Himanshu Kohli Over the years, the…” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
| 25 | 235 contacts → | ||||
Partial evidence “TriCorps is an integrated security and technology firm that specializes in providing cost effective, world-class services tailored to meeting the needs of our clients.” Source: RevenueBase Database · checked Sep 28, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: family office security providers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names family office security providers.
- Partial evidence
- Its own public description names part of family office security providers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name family office security providers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 5,031 family office security providers worldwide
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Family office security providers worldwide at a glance
As of Sep 28, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among family office security providers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for family office security providers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “family office security providers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names family office security providers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among family office security providers, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 13,886 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 28, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Family office security providers by location
37 lists · largest firstEvery Family office security providers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Family office security providers based in the United States1,392
- Family office security providers based in the United Kingdom390
- Family office security providers based in Switzerland253
- Family office security providers based in France217
- Family office security providers based in Brazil195
- Family office security providers based in Germany173
- Family office security providers based in Canada121
- Family office security providers based in India103
- Family office security providers based in Italy98
- Family office security providers based in Mexico89
- Family office security providers based in South Africa89
- Family office security providers based in Australia87
- Family office security providers based in the United Arab Emirates76
- Family office security providers based in the Netherlands63
- Family office security providers based in Hong Kong53
- Family office security providers based in Argentina51
- Family office security providers based in Singapore50
- Family office security providers based in Israel49
- Family office security providers based in Spain45
- Family office security providers based in Chile39
- Family office security providers based in Belgium37
Cities
- Family office security providers based in London, United Kingdom215
- Family office security providers based in New York, United States94
- Family office security providers based in Paris, France89
- Family office security providers based in Sao Paulo, Brazil72
- Family office security providers based in Miami, United States54
- Family office security providers based in Zurich, Switzerland53
- Family office security providers based in Dubai, United Arab Emirates50
- Family office security providers based in Los Angeles, United States50
- Family office security providers based in Singapore, Singapore42
- Family office security providers based in Dallas, United States38
- Family office security providers based in Geneva, Switzerland34
- Family office security providers based in Hamburg, Germany32
- Family office security providers based in Houston, United States31
- Family office security providers based in Toronto, Canada29
- Family office security providers based in Atlanta, United States28
- Family office security providers based in San Francisco, United States27
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names family office security providers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many family office security providers are there worldwide?
RevenueBase identified 5,031 family office security providers worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Security Industry Specialists, headquartered in Culver City, tops this list with the largest team on record.
Which country has the most family office security providers?
The United States leads with 1,392 companies, followed by the United Kingdom (390) and Switzerland (253). Every family office security providers list by country and city is linked on this page.
Which city has the most family office security providers?
London leads with 217 headquartered companies, followed by New York (94) and Paris (89).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 13,886 verified decision-maker contacts tracked across these 5,031 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.