Founded in 2016 by University of Pennsylvania researchers Andrew Tsourkas and James Hui, Philadelphia-based AlphaThera develops antibody-labeling reagents and conjugation services built around its oYo-Link® site-specific technology. The platform uses light-activated covalent attachment at an antibody’s Fc region, allowing researchers to prepare uniform conjugates with less than 30 seconds of hands-on work and applications ranging from multiplex assays to single-cell analysis. AlphaThera also supports custom and larger-scale projects, including antibody-oligonucleotide conjugation and labeling quantities of 1 gram or more.
Vector Laboratories, IncFounded in 1976, Newark-based Vector Laboratories makes research reagents and critical components that help scientists detect, label, visualize, and conjugate biomolecules. The company began in immunohistochemistry and has grown into a life-science manufacturing partner supporting research in areas such as neuroscience, cancer, and infectious disease, with custom capabilities extending from recombinant antibody production to bioconjugate development. Its ISO 9001:2015-certified operations now span the United States, the UK, and Europe.PLAIN CITY, OH
Rockland Immunochemicals, IncEstablished in 1962, Rockland Immunochemicals, Inc. is a privately held biotechnology company with a long history of helping life science researchers develop dependable antibody-based tools. The company operates a 60,000-square-foot manufacturing facility near Philadelphia and serves academic, diagnostic, and biopharma research programs worldwide.325414POTTSTOWN, PA
Pocono Rabbit Farm and Laboratory, IncSince 1960, family-owned Pocono Rabbit Farm and Laboratory has produced custom antibodies and supplied research laboratory services for universities, biotechnology firms, pharmaceutical organizations, and institutions worldwide. Its Canadensis facility handles projects in-house, from antibody development through purification and biological sample collection, rather than subcontracting production. PRFAL has maintained AAALAC International accreditation since 1997 and works under USDA registration, NIH OLAW assurance, and IACUC-approved protocols.CANADENSIS, PA
Jackson ImmunoResearch Laboratories, IncJackson ImmunoResearch Laboratories makes affinity-purified secondary antibodies and related immunoreagents for research and diagnostic assays, with a particular focus on the conjugates and antibody formats used to detect proteins in the lab. Its West Grove, Pennsylvania operation offers more than 3,000 secondary antibodies, including its small-format AffiniPure-VHH® antibodies produced in alpacas for high-resolution immunostaining. The company also supports diagnostic developers with anti-human reagents and colloidal-gold conjugates for lateral-flow applications.325414WEST GROVE, PA