Company lists · Data refreshed September 2026
Top 14 Family office companies based in Guernsey
RevenueBase identified 25 company matches for family office companies associated with Guernsey as of September 2026 and tracks 631 professional contacts across them, including 195 with verified work emails. St Peter Port is the largest hub.
This list covers company matches for family office companies associated with Guernsey, 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.
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 14 largest family office companies based in Guernsey
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 91 contacts → | ||||
Exact match “Belasko are redefining what exceptional looks like in fund and fiduciary services.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 28 contacts → | ||||
Exact match “Invicta is an independent trust and company administration services company in Guernsey, specialising in Private Client and Wealth Administration.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 28 contacts → | ||||
Exact match “We offer an efficient and innovative service for Fiduciary, Corporate and Family Office arrangements which includes Trusts, Foundations, Partnerships and Companies.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 25 contacts → | ||||
Exact match “Artemis offers fiduciary services such as trust and corporate administration which are underpinned by a philosophy of service and agility.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 25 contacts → | ||||
Exact match “Polygon Group Limited, known as the Polygon Collective is an independent family-owned investment company which manages a diverse portfolio that provides support and unique…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 20 contacts → | ||||
Exact match “Expert wealth management advice We provide global solutions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 17 contacts → | ||||
Exact match “Hansard Limited is a licensed Guernsey fiduciary services company providing professional trust and corporate services to clients all over the world.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 14 contacts → | ||||
Exact match “Lancaster is an independent, privately owned fiduciary and investment management company based in the white-listed international finance centre of Guernsey.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 11 contacts → | ||||
Exact match “At Avenue Trust Company, we’re passionate about building modern, flexible structures for clients navigating a world where people, businesses, and capital are increasingly mobile.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 10 contacts → | ||||
Exact match “Operating from its offices in the heart of St.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 10 contacts → | ||||
Exact match “Established in Guernsey in 1998, Beauvoir Limited is an independent, owner-managed, leading provider of Trust, Corporate, Fund and Family Office services to corporate clients…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 5 contacts → | ||||
Exact match “Aquitaine stands as a trusted name in fiduciary services, offering a personalised and professional approach combining institutional expertise with a commitment to exceptional…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 3 contacts → | ||||
Exact match “Aurum Private – Discretion, Structuring and Long-Term Stewardship Aurum Private provides bespoke wealth and fiduciary solutions to ultra-high-net-worth individuals, families, and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 1 contacts → | ||||
Exact match “Private Office Professionals provides personalised services to businesses, family offices and private clients.” 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 “family office companies”. 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 14 of 25 family office companies based in Guernsey
See the full list, filter by size, metro and specialty, and access 195 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Family office companies based in Guernsey at a glance
As of Sep 20, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Guernsey, so it is reported there. Company counts and contact totals on this page are exact for Guernsey, over 25 companies.
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.
- What qualifies
- Company records associated with Guernsey whose business descriptions match “family office companies” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 195 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.
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 “family office companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many family office companies are there based in Guernsey?
RevenueBase identified 25 company matches for family office companies associated with Guernsey 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?
Belasko tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most family office companies?
St Peter Port leads with 17 company records, followed by St. Peter Port (2) and Castel (1).
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 195 professional contacts with verified work emails tracked across these 25 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 25 family office companies based in Guernsey. Start with a free account, no credit card.
Download this list →Related lists
Family office companies by geography
- Family office companies based in Brisbane, Australia
- Family office companies based in Melbourne, Australia
- Family office companies based in Perth, Australia
- Family office companies based in Sydney, Australia
- Family office companies based in Porto Alegre, Brazil
- Family office companies based in Rio De Janeiro, Brazil
- Family office companies based in Sao Paulo, Brazil
- Family office companies based in Calgary, Canada
- Family office companies based in Edmonton, Canada
- Family office companies based in Mississauga, Canada
- Family office companies based in Montreal, Canada
- Family office companies based in Ottawa, Canada
Browse the directory
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase 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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Family office companies based in Brisbane, Australia
- Family office companies based in Melbourne, Australia
- Family office companies based in Perth, Australia
- Family office companies based in Sydney, Australia
- Family office companies based in Porto Alegre, Brazil
- Family office companies based in Rio De Janeiro, Brazil
Company intelligence · public preview
Top 14 family office companies based in Guernsey
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 25 matching company records for family office companies based in Guernsey, with 631 tracked contacts and 195 verified work emails.
This public preview shows 14 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 14 family office companies based in Guernsey
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 |  Belaskobelasko.comHQ: St Peter Port, GuernseyReported employees: 51-200 | St Peter Port, Guernsey | 51-200 | Exact match | 91 contacts → |
“Belasko are redefining what exceptional looks like in fund and fiduciary services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Invicta Wealth Solutions Limitedinvictawealthsolutions.com HQ: St. Peter Port, GuernseyReported employees: 11-50 | St. Peter Port, Guernsey | 11-50 | Exact match | 28 contacts → |
“Invicta is an independent trust and company administration services company in Guernsey, specialising in Private Client and Wealth Administration.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Albany Trustee Company Limitedalbanytrustee.comHQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 28 contacts → |
“We offer an efficient and innovative service for Fiduciary, Corporate and Family Office arrangements which includes Trusts, Foundations, Partnerships and Companies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Artemis Fiduciariesartemisci.com HQ: St Peter Port, GuernseyReported employees: 51-200 | St Peter Port, Guernsey | 51-200 | Exact match | 25 contacts → |
“Artemis offers fiduciary services such as trust and corporate administration which are underpinned by a philosophy of service and agility.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Polygon Collectivepolygon-collective.co HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 25 contacts → |
“Polygon Group Limited, known as the Polygon Collective is an independent family-owned investment company which manages a diverse portfolio that provides support and unique…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Peregrine Wealthperegrine.gg HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 20 contacts → |
“Expert wealth management advice We provide global solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Hansard Limitedhansardtrust.com HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 17 contacts → |
“Hansard Limited is a licensed Guernsey fiduciary services company providing professional trust and corporate services to clients all over the world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Lancaster Guernseylancaster.gg HQ: Admiral Park, GuernseyReported employees: 11-50 | Admiral Park, Guernsey | 11-50 | Exact match | 14 contacts → |
“Lancaster is an independent, privately owned fiduciary and investment management company based in the white-listed international finance centre of Guernsey.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Avenue Trust Company Limitedavenuetrust.gg HQ: St Julian's Avenue, GuernseyReported employees: 11-50 | St Julian's Avenue, Guernsey | 11-50 | Exact match | 11 contacts → |
“At Avenue Trust Company, we’re passionate about building modern, flexible structures for clients navigating a world where people, businesses, and capital are increasingly mobile.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Tarian Trusttariantrust.com HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 10 contacts → |
“Operating from its offices in the heart of St.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Beauvoir Groupbeauvoirgroup.com HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 10 contacts → |
“Established in Guernsey in 1998, Beauvoir Limited is an independent, owner-managed, leading provider of Trust, Corporate, Fund and Family Office services to corporate clients…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Aquitaine Group Limitedsummit-group.comHQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 5 contacts → |
“Aquitaine stands as a trusted name in fiduciary services, offering a personalised and professional approach combining institutional expertise with a commitment to exceptional…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Aurum Private Limitedaurumprivate.com HQ: St Peter Port, GuernseyReported employees: 1-10 | St Peter Port, Guernsey | 1-10 | Exact match | 3 contacts → |
“Aurum Private – Discretion, Structuring and Long-Term Stewardship Aurum Private provides bespoke wealth and fiduciary solutions to ultra-high-net-worth individuals, families, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Private Office Professionalsprivateofficepro.com HQ: GuernseyReported employees: 1-10 | Guernsey | 1-10 | Exact match | 1 contacts → |
“Private Office Professionals provides personalised services to businesses, family offices and private clients.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 14 of 25 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Family office companies: 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
25 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 worldwide rather than for Guernsey, so it is reported there. Company counts and contact totals on this page are exact for Guernsey, over 25 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 ↗
Questions about this company list
What does Exact match mean for family office companies?
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 family office companies did RevenueBase find based in Guernsey?
The saved snapshot records 25 matching company records, 631 tracked contacts and 195 verified emails. The public preview displays 14 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
Family office companies by geography
- Family office companies based in Brisbane, Australia
- Family office companies based in Melbourne, Australia
- Family office companies based in Perth, Australia
- Family office companies based in Sydney, Australia
- Family office companies based in Porto Alegre, Brazil
- Family office companies based in Rio De Janeiro, Brazil
- Family office companies based in Sao Paulo, Brazil
- Family office companies based in Calgary, Canada
- Family office companies based in Edmonton, Canada
- Family office companies based in Mississauga, Canada
- Family office companies based in Montreal, Canada
- Family office companies based in Ottawa, Canada
Browse the directory
Cite this list
RevenueBase Data Team. Top 14 family office companies based in Guernsey. Snapshot: September 20, 2026. https://revenuebase.ai/companies/family-office-companies/guernsey.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Family office companies based in Brisbane, Australia
- Family office companies based in Melbourne, Australia
- Family office companies based in Perth, Australia
- Family office companies based in Sydney, Australia
- Family office companies based in Porto Alegre, Brazil
- Family office companies based in Rio De Janeiro, Brazil
Company intelligence · public preview
Top 14 family office companies based in Guernsey
RevenueBase records 25 matching company records for family office companies based in Guernsey, with 631 tracked contacts and 195 verified work emails.
This public preview shows 14 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 14 family office companies based in Guernsey
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 | Belaskobelasko.com HQ: St Peter Port, GuernseyReported employees: 51-200 | St Peter Port, Guernsey | 51-200 | Exact match | 91 contacts → |
“Belasko are redefining what exceptional looks like in fund and fiduciary services.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Invicta Wealth Solutions Limitedinvictawealthsolutions.com HQ: St. Peter Port, GuernseyReported employees: 11-50 | St. Peter Port, Guernsey | 11-50 | Exact match | 28 contacts → |
“Invicta is an independent trust and company administration services company in Guernsey, specialising in Private Client and Wealth Administration.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Albany Trustee Company Limitedalbanytrustee.com HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 28 contacts → |
“We offer an efficient and innovative service for Fiduciary, Corporate and Family Office arrangements which includes Trusts, Foundations, Partnerships and Companies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Artemis Fiduciariesartemisci.com HQ: St Peter Port, GuernseyReported employees: 51-200 | St Peter Port, Guernsey | 51-200 | Exact match | 25 contacts → |
“Artemis offers fiduciary services such as trust and corporate administration which are underpinned by a philosophy of service and agility.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Polygon Collectivepolygon-collective.co HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 25 contacts → |
“Polygon Group Limited, known as the Polygon Collective is an independent family-owned investment company which manages a diverse portfolio that provides support and unique…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Peregrine Wealthperegrine.gg HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 20 contacts → |
“Expert wealth management advice We provide global solutions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Hansard Limitedhansardtrust.com HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 17 contacts → |
“Hansard Limited is a licensed Guernsey fiduciary services company providing professional trust and corporate services to clients all over the world.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Lancaster Guernseylancaster.gg HQ: Admiral Park, GuernseyReported employees: 11-50 | Admiral Park, Guernsey | 11-50 | Exact match | 14 contacts → |
“Lancaster is an independent, privately owned fiduciary and investment management company based in the white-listed international finance centre of Guernsey.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Avenue Trust Company Limitedavenuetrust.gg HQ: St Julian's Avenue, GuernseyReported employees: 11-50 | St Julian's Avenue, Guernsey | 11-50 | Exact match | 11 contacts → |
“At Avenue Trust Company, we’re passionate about building modern, flexible structures for clients navigating a world where people, businesses, and capital are increasingly mobile.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Tarian Trusttariantrust.com HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 10 contacts → |
“Operating from its offices in the heart of St.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Beauvoir Groupbeauvoirgroup.com HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 10 contacts → |
“Established in Guernsey in 1998, Beauvoir Limited is an independent, owner-managed, leading provider of Trust, Corporate, Fund and Family Office services to corporate clients…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Aquitaine Group Limitedsummit-group.com HQ: St Peter Port, GuernseyReported employees: 11-50 | St Peter Port, Guernsey | 11-50 | Exact match | 5 contacts → |
“Aquitaine stands as a trusted name in fiduciary services, offering a personalised and professional approach combining institutional expertise with a commitment to exceptional…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Aurum Private Limitedaurumprivate.com HQ: St Peter Port, GuernseyReported employees: 1-10 | St Peter Port, Guernsey | 1-10 | Exact match | 3 contacts → |
“Aurum Private – Discretion, Structuring and Long-Term Stewardship Aurum Private provides bespoke wealth and fiduciary solutions to ultra-high-net-worth individuals, families, and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Private Office Professionalsprivateofficepro.com HQ: GuernseyReported employees: 1-10 | Guernsey | 1-10 | Exact match | 1 contacts → |
“Private Office Professionals provides personalised services to businesses, family offices and private clients.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 14 of 25 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Family office companies: 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
25 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 worldwide rather than for Guernsey, so it is reported there. Company counts and contact totals on this page are exact for Guernsey, over 25 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 ↗
Questions about this company list
What does Exact match mean for family office companies?
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 family office companies did RevenueBase find based in Guernsey?
The saved snapshot records 25 matching company records, 631 tracked contacts and 195 verified emails. The public preview displays 14 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
Family office companies by geography
- Family office companies based in Brisbane, Australia
- Family office companies based in Melbourne, Australia
- Family office companies based in Perth, Australia
- Family office companies based in Sydney, Australia
- Family office companies based in Porto Alegre, Brazil
- Family office companies based in Rio De Janeiro, Brazil
- Family office companies based in Sao Paulo, Brazil
- Family office companies based in Calgary, Canada
- Family office companies based in Edmonton, Canada
- Family office companies based in Mississauga, Canada
- Family office companies based in Montreal, Canada
- Family office companies based in Ottawa, Canada
Browse the directory
Cite this list
RevenueBase Data Team. Top 14 family office companies based in Guernsey. Snapshot: September 20, 2026. https://revenuebase.ai/companies/family-office-companies/guernsey.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Family office companies based in Brisbane, Australia
- Family office companies based in Melbourne, Australia
- Family office companies based in Perth, Australia
- Family office companies based in Sydney, Australia
- Family office companies based in Porto Alegre, Brazil
- Family office companies based in Rio De Janeiro, Brazil