Identity graph
Interserve headquarters, locations and relationships
- Legal name
- INTERSERVE PLC
- Industry
- Construction
- Founded
- 1884
- Ticker
- LSE: IRV
- Phone
- +44 118 932 0123
- Website
- interserve.com
- LinkedIn profile for Interserve
Interserve office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Twyford | England | United Kingdom | Headquarters |
| Wembley | Western Australia | Australia | Office |
| Nanaimo | British Columbia | Canada | Office |
| Addlestone | England | United Kingdom | Office |
| Birmingham | England | United Kingdom | Office |
| Bristol | England | United Kingdom | Office |
- Parent company
- No parent company recorded in GraphIQ.ai.
- Competitors
- Interserve competes with 8 organizations in the GraphIQ.ai identity graph.
Verified from public filings, company websites and news · Methodology
Open in GraphIQ.aiMore Interserve data in GraphIQ.ai
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News (available after sign-in)
Recent coverage and signals, resolved to the entity.
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Subsidiaries, people and lookalike companies.
Who uses the Interserve entity
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Industry and supply chain
Suppliers, sites and partners mapped to the right legal entity.
Industry -
Revenue and GTM teams
Territories, enrichment and account expansion on one resolved account.
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Government and public sector
Supplier vetting, ownership and jurisdiction checks against one verified entity.
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Private equity and investors
Corporate family, comparable companies and deal sourcing.
Private equity -
Developers and AI agents
The entity and its relationships through the REST API and MCP server.
Developers
About Interserve
Interserve (LSE: IRV) is headquartered in Twyford, England, United Kingdom. Founded in 1884, the company has 46 recorded locations across 4+ countries and employs approximately 34,721 people worldwide.
Where is Interserve's main office?
Interserve's main headquarters office is located at Ruscombe Park, Twyford, England rg10 9ju, United Kingdom. This is the company's primary corporate address.
Interserve regional offices
Beyond its headquarters in Twyford, Interserve has recorded locations in United Kingdom, Australia, Canada and United States.
Interserve contact information
The main switchboard for Interserve headquarters can be reached at +44 118 932 0123. Official website: interserve.com.
What does Interserve do?
Interserve PLC provides construction engineering services.
One entity, every stage
Put Interserve to work across your revenue bowtie
- Target Define the market Build the account list from companies shaped like your best customers, Interserve included. Fingerprint search
- Cover Plan territories Interserve's 46 locations roll up to one account, so it lands in one territory, once. Territory planning
- Engage Act on timing Leadership changes, funding and M&A arrive linked to the account, not a loose headline. Signal monitoring
- Convert Close on a resolved record Inbound and closed-won attach to one CRM record, with no duplicates to merge. CRM enrichment
- Retain Ground every answer Customer teams and AI agents answer from the same entity, with a source and a date. AI agent data layer
- Expand Find the next buyer inside Follow subsidiaries and divisions to the next team that can buy. Account expansion
About the source
What is GraphIQ.ai?
A B2B identity graph. It resolves each organization into one verified entity and maps its parent and subsidiaries, employees, competitors and news signals. Revenue teams use it in the product; AI agents query it through the REST API and MCP server.
POST/api/v2/organizations/search
Interserve: frequently asked questions
Where is Interserve headquarters?
Ruscombe Park, Twyford, England rg10 9ju, United Kingdom.
What is Interserve's phone number?
+44 118 932 0123 (headquarters).
When was Interserve founded?
1884.
How many employees does Interserve have?
About 34,721, as of October 2026 (GraphIQ.ai estimate).
How many offices does Interserve have?
46 locations across 4+ countries, including Wembley, Nanaimo, Addlestone, Birmingham.
Is Interserve a public company?
Yes. Interserve trades on LSE under the ticker IRV.
Questions about GraphIQ.ai
Is GraphIQ.ai a list of companies like a spreadsheet?
No. Each organization resolves to one verified entity linked to its parent, subsidiaries, people and signals, so Interserve here is the same Interserve in your CRM, territory plan and agent answers.
Where does this Interserve data come from?
Public filings, company websites and news, resolved to one entity and continuously updated.