Identity graph
Charles River Laboratories International headquarters, locations and relationships
- Legal name
- MPI Research, Inc.
- Industry
- Research and Development Services
- Founded
- 1947
- Ticker
- NYSE: CRL
- Phone
- +1 781 222 6000
- Website
- criver.com
Charles River Laboratories International office locations
| City | State / region | Country | Type |
|---|---|---|---|
| Mattawan | Michigan | United States | Headquarters |
| Hamilton | Ontario | Canada | Office |
| Kitchener | Ontario | Canada | Office |
| Pointe-Claire | Quebec | Canada | Office |
| Decatur | Michigan | United States | Office |
| Knoxville | Tennessee | 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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About Charles River Laboratories International
Charles River Laboratories International (NYSE: CRL) is headquartered in Mattawan, Michigan, United States. Founded in 1947, the company has 12 recorded locations across 2+ countries and employs approximately 19,700 people worldwide.
Where is Charles River Laboratories International's main office?
Charles River Laboratories International's main headquarters office is located at 54943 North Main Street, Mattawan, Michigan 49071-8353, United States. This is the company's primary corporate address.
Charles River Laboratories International regional offices
Beyond its headquarters in Mattawan, Charles River Laboratories International has recorded locations in United States and Canada.
Charles River Laboratories International contact information
The main switchboard for Charles River Laboratories International headquarters can be reached at +1 781 222 6000. Official website: criver.com.
What does Charles River Laboratories International do?
MPI Research provides preclinical services to agricultural, environmental, biopharmaceutical, medical device, animal health, and chemical industries. MPI Research has conducted thousands of studies in both small and large molecules in a wide and diverse range of compound classes, through all routes of administration (excluding inhalation) and offers studies with numerous species and models. Our recent achievements warrant a closer look to see how we’ve expanded to integrate the full spectrum of services for new drug and device candidates.
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- Cover Plan territories Charles River Laboratories International's 12 locations roll up to one account, so it lands in one territory, once. Territory planning
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About the source
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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.
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Charles River Laboratories International: frequently asked questions
Where is Charles River Laboratories International headquarters?
54943 North Main Street, Mattawan, Michigan 49071-8353, United States.
What is Charles River Laboratories International's phone number?
+1 781 222 6000 (headquarters).
When was Charles River Laboratories International founded?
1947.
How many employees does Charles River Laboratories International have?
About 19,700, as of October 2026 (GraphIQ.ai estimate).
How many offices does Charles River Laboratories International have?
12 locations across 2+ countries, including Hamilton, Kitchener, Pointe-Claire, Decatur.
Is Charles River Laboratories International a public company?
Yes. Charles River Laboratories International trades on NYSE under the ticker CRL.
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 Charles River Laboratories International here is the same Charles River Laboratories International in your CRM, territory plan and agent answers.
Where does this Charles River Laboratories International data come from?
Public filings, company websites and news, resolved to one entity and continuously updated.