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About Us

Cell Signaling Technology (CST) is a private, family-owned company, founded by scientists and dedicated to providing the world’s highest quality, innovative research and diagnostic products to accelerate biological understanding and enable personalized medicine.

Advancing Biomedical Research

Our Core Values

Our four core values are the basis for our decision-making, leadership, and culture. They are the principles that the company was founded on and continue to guide our path.

Innovative Science
Innovative Science

We believe in the power and promise of science to solve the challenges we face as a global community. Innovation and collaboration are the tools we use to advance life sciences.

Best In Class products
Best-In-Class Products

We believe that by empowering scientists and clinicians with best-in-class tools and an excellent customer experience, we can accelerate new discoveries that lead to a better understanding, diagnosis, and treatment of disease.

Engaged Employees
Engaged Employees

We believe in creating a stimulating environment that engages all employees, drives innovation, and fosters a culture of inclusion and respect.

Social Responsibility
Social Responsibility

We believe that business must be more responsible, working in partnership with local communities and seeking to minimize its environmental impact.

Our Commitments


In addition to product development and production, CST is also actively engaged in the development of new technologies for signaling analysis as well as mechanistic cell biology research. CST scientists publish their findings in the highest quality peer-reviewed journals including: Nature Biotechnology, Cell, Journal of Immunology, and Journal of Biological Chemistry. Moreover, CST has built and continues to add functionality to our PhosphoSitePlus® bioinformatics resource, an NIH-funded, publicly accessible knowledge-base containing actively curated information about known and CST-discovered regulatory post-translational modifications on proteins from human, mouse, and related species.

Our Customers

Customer satisfaction is our highest priority. We are a company founded by scientists, with expert scientific staff dedicated to understanding your needs as a researcher. We are committed to developing only the highest quality products. Our rigorous validation process ensures the most credible and reproducible results with the least expenditure of your costly time, samples, and reagents.

Our Employees

We recognize that people will always be our most important asset. Providing a safe, inclusive and stimulating working environment that understands the importance of diversity, human dignity and meaningful work is as important as establishing company policies that incorporate excellent health insurance, and pay benefits. Engaging our employees in committees and philanthropy that benefit the environment and our local communities helps maintain loyalty and long-term work relationships. If you are interested in working at CST, please visit our Careers page.