Identity graph
GSI headquarters, locations and relationships
- Industry
- Recruiting Software
- Founded
- 1995
- Phone
- +1 813 812 8000
- Website
- gsicorp.com
- LinkedIn profile for GSI
GSI office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Tampa | Florida | United States | Headquarters |
| New York City | New York | United States | Office |
- Parent company
- No parent company recorded in GraphIQ.ai.
Verified from public filings, company websites and news · Methodology
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Technographics (available after sign-in)
Software, cloud and infrastructure in use.
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Firmographics (available after sign-in)
Revenue, headcount, growth and industry codes.
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Capabilities (available after sign-in)
Products, services and certifications.
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News (available after sign-in)
Recent coverage and signals, resolved to the entity.
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And more (available after sign-in)
Subsidiaries, people and lookalike companies.
Who uses the GSI entity
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Revenue and GTM teams
Territories, enrichment and account expansion on one resolved account.
RevOps Sales & marketing -
Developers and AI agents
The entity and its relationships through the REST API and MCP server.
Developers -
Private equity and investors
Corporate family, comparable companies and deal sourcing.
Private equity -
Industry and supply chain
Suppliers, sites and partners mapped to the right legal entity.
Industry -
Government and public sector
Supplier vetting, ownership and jurisdiction checks against one verified entity.
Government
About GSI
GSI is headquartered in Tampa, Florida, United States. Founded in 1995, the company has 2 recorded locations and employs approximately 2,492 people worldwide.
Where is GSI's main office?
GSI's main headquarters office is located at 3902 Henderson Blvd suite 208, Tampa, Florida 33629, United States. This is the company's primary corporate address.
GSI regional offices
Beyond its headquarters in Tampa, GSI has recorded locations in United States.
GSI contact information
The main switchboard for GSI headquarters can be reached at +1 813 812 8000. Official website: gsicorp.com.
What does GSI do?
GSI offers contract and permanent staffing recruitment solutions for corporations. They provide including recruiting, selection, hiring, and onboarding. It has proprietary recruitment and selection methodology customized for its organization’s staffing.
One entity, every stage
Put GSI to work across your revenue bowtie
- Target Define the market Build the account list from companies shaped like your best customers, GSI included. Fingerprint search
- Cover Plan territories GSI's 2 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
GSI: frequently asked questions
Where is GSI headquarters?
3902 Henderson Blvd suite 208, Tampa, Florida 33629, United States.
What is GSI's phone number?
+1 813 812 8000 (headquarters).
When was GSI founded?
1995.
How many employees does GSI have?
About 2,492, as of October 2026 (GraphIQ.ai estimate).
How many offices does GSI have?
2 locations, including New York City.
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 GSI here is the same GSI in your CRM, territory plan and agent answers.
Where does this GSI data come from?
Public filings, company websites and news, resolved to one entity and continuously updated.