CallSource Headquarters & Office Locations

Business analytic and call tracking provider. Headquarters: 5601 Lindero Canyon Road suite 210, Westlake Village, California 91362, United States.

Headquarters
Westlake Village, CA
Total locations
6
Employees · est. 2026
163

Identity graph

CallSource headquarters, locations and relationships

Headquarters5601 Lindero Canyon Road suite 210, Westlake Village, California 91362, United StatesOpen in Google Maps
Legal name
CallSource, Inc.
Industry
Marketing Software
Founded
1991

CallSource office locations

6 total
CallSource office locations: headquarters and key locations
CityState / regionCountryType
Westlake VillageCaliforniaUnited StatesHeadquarters
LancasterPennsylvaniaUnited StatesOffice
Merritt IslandFloridaUnited StatesOffice
See all 6 locations
Parent company
No parent company recorded in GraphIQ.ai.

Verified from public filings, company websites and news · Methodology

Open in GraphIQ.ai

More CallSource data in GraphIQ.ai

This page shows the public record. Sign in with a work email to open the rest of the entity.

  • Technographics (available after sign-in)

    Software, cloud and infrastructure in use.

  • Firmographics (available after sign-in)

    Revenue, headcount, growth and industry codes.

  • Capabilities (available after sign-in)

    Products, services and certifications.

  • News (available after sign-in)

    Recent coverage and signals, resolved to the entity.

  • And more (available after sign-in)

    Subsidiaries, people and lookalike companies.

Who uses the CallSource entity

  • 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 CallSource

CallSource is headquartered in Westlake Village, California, United States. Founded in 1991, the company has 6 recorded locations and employs approximately 163 people worldwide.

Where is CallSource's main office?

CallSource's main headquarters office is located at 5601 Lindero Canyon Road suite 210, Westlake Village, California 91362, United States. This is the company's primary corporate address.

CallSource regional offices

Beyond its headquarters in Westlake Village, CallSource has recorded locations in United States.

CallSource contact information

The main switchboard for CallSource headquarters can be reached at +1 833 968 7768. Official website: callsource.com.

What does CallSource do?

Callsource provides provides call tracking and lead management solutions for businesses. The Company offers customized solutions, including call tracking, call recording, vanity numbers, and telephone performance analytics. CallSource operates in the United States.

One entity, every stage

Put CallSource to work across your revenue bowtie

All use cases
  1. Target Define the market Build the account list from companies shaped like your best customers, CallSource included. Fingerprint search 
  2. Cover Plan territories CallSource's 6 locations roll up to one account, so it lands in one territory, once. Territory planning 
  3. Engage Act on timing Leadership changes, funding and M&A arrive linked to the account, not a loose headline. Signal monitoring 
  4. Convert Close on a resolved record Inbound and closed-won attach to one CRM record, with no duplicates to merge. CRM enrichment 
  5. Retain Ground every answer Customer teams and AI agents answer from the same entity, with a source and a date. AI agent data layer 
  6. 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

CallSource: frequently asked questions

Where is CallSource headquarters?

5601 Lindero Canyon Road suite 210, Westlake Village, California 91362, United States.

What is CallSource's phone number?

+1 833 968 7768 (headquarters).

When was CallSource founded?

1991.

How many employees does CallSource have?

About 163, as of October 2026 (GraphIQ.ai estimate).

How many offices does CallSource have?

6 locations, including Lancaster, Merritt Island.

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 CallSource here is the same CallSource in your CRM, territory plan and agent answers.

Where does this CallSource data come from?

Public filings, company websites and news, resolved to one entity and continuously updated.

Find more info on CallSource using GraphIQ

Revenue teams waste hours stitching together data from a dozen tools before a single rep can make a meaningful touch. GraphIQ fixes that. Whether you're building target account lists, routing inbound leads, or keeping your CRM clean as CallSource's structure evolves, GraphIQ gives you verified company, people and location data in one place.

From territory planning and lead scoring to handoff workflows and pipeline hygiene, our platform connects the data your GTM engine needs to run without friction. Sign up today and see how GraphIQ helps your revenue team spend less time finding information and more time acting on it.

287MOrganizations resolved
393MEmployees
2B+News and events