Your Name (required) Your Email (required) Your Phone Number (required) Subject Your Message 2+3=? Get A Hold of Us! Let CLS provide you with excellent service, and superior quality! Address: 1309 S LINDEN RD STE A FLINT, MI 48532-3443 Office Phone: 810.512.7751 Fax: 810.512.7751 Business Hours: 8:00 am –5:00 pm Monday – Friday E-Mail: info@compls.com Comprehensive Lab Services, LLC.