Customer Support
Please select the team or topic you would like to reach out to for support:
Have a question about an order? Contact a CST scientist via phone, email, or by submitting the form below.
Contact Customer Support
- Hours: 8:30 AM - 8:00 PM (EST)
- Phone: 978-867-2388
- Phone: 877-616-2355 (toll-free)
- Fax: 978-867-2488
- Fax: 866-432-6112 (toll-free)
- Email: [email protected]
Technical Support
Email: [email protected]
Call: 877-678-8324
Customer Support
Email: [email protected]
Call: 877-616-2355
Fax: 866-432-6112
Contact Sales
Email: [email protected]
Call: 877-616-2355
Fax: 877-616-2355