Hundreds of therapies approved by the FDA and global regulatory agencies were supported by our scientists. We deliver the quality, speed, and scientific rigor that 2,500+ clients worldwide trust to advance their most promising drug candidates — because a partner you can trust helps reduce risk at every milestone.

Discovery Services
Preclinical Services
Clinical Support Services

Your Drug Discovery and Development Partner Since 2001

For over 25 years, leading pharmaceutical, biotech, and academic organizations have trusted Reaction Biology to advance their most critical drug candidates. Our scientists act as consultative partners who interpret results, recommend next steps, and orient their work around your milestones. Across our facilities in the US and Europe, gold-standard techniques are powered by industry-leading instrumentation, providing the flexibility to design bespoke studies while delivering quality data held to the highest standards of scientific rigor. Quality systems are built for the audits your program will eventually require. Reaction Biology Europe operates under an ISO 9001:2015-certified quality management system.

Company Facts

2,500+ Clients worldwide

5,000+ Projects per year

4,000,000 Data points per year

6,000+ Citations

200 Patent citations

What We Stand For

Consultative

An extension of your team.

Direct access to study directors. No portals, no handoffs. Scientists who interpret results, recommend next steps, and adapt protocols as the science evolves.

Responsive

Matching your speed and rigor.

24-hour response to inquiries. On-time and right-first-time delivery tracked across every project, so milestones don’t slip.

Proven

25 years of expertise.

2,500+ clients. 5,000+ projects per year. Hundreds of therapies supported to IND. ISO 9001:2015 and GxP-compliant operations across four global sites.

Reasons to Believe

Trust & Credibility

Hundreds of therapies supported to IND submission
Industry’s largest kinase library
2,500+ clients worldwide
ISO 9001:2015 certified quality management
25+ years of CRO expertise
6,000+ citations across 50+ scientific journals

Speed & Responsiveness

Deadline-aligned reports
Scope flexibility when priorities shift
Fast quotes for standard studies
24-hour response to inquiries
Direct study director access
QTR and RFT tracked on every project

Preclinical Drug Discovery Platform

Reaction Biology’s team of PhD scientists will take your drug discovery project from target validation through hit identification and hit to lead phases and provide lead optimization studies either on a fee-for-service basis or as integrated partner.