Welcome to Cancer Diagnostics, Inc. (CDI)


Founded in 1998, Cancer Diagnostics, Inc. (CDI) is a leading developer and manufacturer of histology, cytology, surgical pathology and immunohistochemistry diagnostic supplies. CDI developed the first commercially available 7-dye color kit for marking tissue margins, CDI’s® Tissue Marking Dyes; and today offers one of the industry’s largest portfolio of anatomic pathology products to over 3,500 laboratories worldwide with shipping locations throughout the United States. Our mission is to provide extraordinary value for anatomic pathology laboratories and patients through a wide variety of reliable, cost effective solutions delivered with exceptional service and integrity.

We have been privileged to work with thousands of organizations since 1998. I’d like to thank you for the work that you do in Anatomic Pathology and the vital role you play in providing better patient care.

We love to listen and learn from our customers and work to provide choices that give the best options for optimal work flow routines and diagnostic results.

We are passionate about creating, developing and providing products for Anatomic Pathology.

From our first product 20 years ago, CDI’s Tissue Marking Dyes to our current 3000+ product line, we’re honored to be your current or potential supply partner.

Patrick O’Neill
Founder, CEO

Our passion is improving the customer experience with better products and service. Reliable products, easy ordering, on-time deliveries, value and guaranteed satisfaction.