CROs in United States
65 matching organizations
United States is a common geography filter when sponsors shortlist CRO partners for regional coverage, logistics, and regulatory familiarity. This hub groups published organizations with at least one location mapped to United States, so you can start regional discovery without rebuilding filters from scratch.
Open each profile for scope, modalities, indications, and provenance-backed facts. The directory is fit-first: these listings are not ranked as a single "best" regional answer — use them to assemble a right-sized outreach list for your program.
Combine this regional view with service, modality, or indication filters in search when you need tighter criteria. Explore pages also link service × modality × region combinations when enough providers match.
Directory listings on this page are fit-first and provenance-backed; sponsors are labeled separately and do not alter organic ordering.
- AAPharmaSyn
Medicinal chemistry CRO specializing in custom lipid synthesis, stable isotope labeling, hit-to-lead optimization, and process development for pharmaceutical and biotech clients since 2006.
- ACM Global Laboratories
Global clinical trial central lab and bioanalytical services provider with 40+ years of experience supporting drug development across 65+ countries.
- Abzena
Fully integrated biologics and bioconjugates CDMO+CRO offering drug design, development, and GMP manufacturing for antibodies, ADCs, AOCs, RDCs, and vaccines from discovery through commercial scale.
- Accelevir
CLIA-certified CRO specializing in ultra-sensitive molecular analytics, custom immunology assays, and integrated virology-immunology workflows for cell therapies, gene editing, and infectious disease programs.
- Acrosian
Integrated biometrics CRO delivering clinical data management, biostatistics, statistical programming, and medical writing with AI augmentation and GxP validation for biotech sponsors across all phases of clinical development.
- Aliri Bioanalysis
Bioanalytical CRO specializing in PK/PD, biomarker, and spatial imaging services across discovery through Phase 3 clinical trials, with 20+ years of regulatory expertise.
- Altasciences
Mid-size early phase CRO/CDMO in Canada and the U.S. offering preclinical safety testing, clinical pharmacology (Phase I–II), bioanalysis, research services, and manufacturing with integrated capabilities.
- Alturas Analytics
GLP-compliant bioanalytical CRO specializing in LC-MS/MS solutions for preclinical and clinical research, IND submissions, and new drug applications.
- Aragen Life Sciences
Global CRDMO partner offering integrated discovery-to-commercialization services across small molecules and biologics, with 4000+ scientists and R&D/manufacturing campuses in Asia, North America, and Europe.
- Ardena
Ardena is an integrated CDMO and bioanalytical CRO specializing in advanced drug product development, nanomedicine, and bioanalysis for complex molecules including poorly soluble compounds, highly potent APIs, and controlled substances.
- Axxam
Contract research organization specializing in integrated drug discovery services, from target validation to hit and lead identification across therapeutic areas.
- Beantown Biotech
Boston-based CRO specializing in assay development and biochemical & cellular screening for early-stage drug discovery, from target validation through lead optimization.
- BioAgilytix
Bioanalytical CRO specializing in pharmacokinetics, immunogenicity, biomarkers, and CMC analytics with 30+ years of experience and 1,100+ employees conducting 5M+ tests annually.
- BioDuro-Sundia
BioDuro-Sundia is a contract research, development, and manufacturing organization (CRDMO) with 30 years of expertise providing integrated drug discovery, development, and manufacturing services from target identification through IND submission.
- BioLegacy Research
San Diego-based preclinical CRO specializing in GLP toxicology, in vivo pharmacology, custom animal models, and medical device testing across rodent to non-human primate species.
- Biotrial
Biotrial is a leading CRO specializing in early-phase clinical development with 260 beds across Phase I units in France and the USA, offering First-in-Human studies, Proof-of-Concept trials, bioanalysis, biometrics, ECG, and CNS & imaging core lab services.
- CRAMSN
CRAMSN is a contract research, development, and manufacturing organization (CRO/CDMO/CMO) offering end-to-end solutions for drug substance and drug product development with GMP-certified facilities recognized by US, EU, Japan, and Canada regulatory authorities.
- CTI Clinical Trial and Consulting Services
Full-service CRO founded in 1999 providing therapeutic expertise across clinical trial and consulting services to pharmaceutical and biotechnology companies.
- Celerion
Global CRO specializing in early-phase clinical research and bioanalytical sciences with 650+ beds across 30 countries and 50+ years of experience.
- Certara
Certara transforms drug development with proprietary biosimulation software, predictive modeling, and AI-driven services spanning discovery through commercialization. Serving 2,400+ biopharmaceutical companies and regulatory agencies across 70 countries, Certara's model-informed drug development (MIDD) platform accelerates clinical and regulatory decision-making.
- Champions Oncology
Leading oncology CRO specializing in preclinical and clinical specialty testing, with over 1,400 patient-derived xenograft models, comprehensive multi-omic datasets, and proprietary platforms including flow cytometry, NGS, proteomics, and histopathology services.
- Charles River Laboratories
Charles River Laboratories provides contract research, development, and manufacturing services across the full drug discovery and development continuum, supporting 80% of FDA-approved drugs over the past five years.
- ChemPartner
Global preclinical CRO with 20+ years of experience supporting drug discovery through IND submission across small molecules and biologics, with 2,000+ scientists and facilities worldwide.
- Clinilabs
Clinilabs is the leading CNS-focused CRO with 25+ years of expertise in neurotherapeutic clinical trials, offering Phase 1–4 trial management, early-phase development, clinical research units, and MedTech device expertise across psychiatry, neurology, substance use, and rare CNS disorders.
- Crown Bioscience
Preclinical oncology CRO offering 2,500+ PDX models, organoid and cell line databases, and translational platforms with biomarker discovery and AI-driven systems biology for drug development.
- Cyagen Biosciences
Cyagen provides genetically engineered animal models, custom cell lines, and viral packaging services for preclinical research, with specialized expertise in humanized mice, gene therapy vectors, and disease-specific models across oncology, neurology, and metabolic disorders.
- Cyagen Biosciences
Cyagen provides genetically engineered animal models, custom cell lines, and viral packaging services for preclinical drug discovery, with specialized platforms including HUGO-GT™ and HUGO-Ab™ for humanized target validation and antibody screening.
- ERGOMED Group
Global, full-service CRO specializing in oncology and rare disease clinical development, with complementary pharmacovigilance and QA consulting brands.
- Ergomed Clinical Research
Ergomed is a specialized CRO with 25+ years of experience delivering oncology, rare disease, and complex clinical trial solutions across all phases globally, backed by a team of 100+ MDs and PhDs.
- ExperTrials
European-based full-service CRO supporting biotech and medtech companies from Phase I through Phase IV and market access, with 80+ senior clinical research associates across Europe and the USA.
- Fortrea
Fortrea is a leading CRO advancing clinical trials through patient-focused clinical solutions that accelerate clinical development and drive trial success.
- ICON plc
ICON is a global clinical research organization providing full-service drug development and clinical trial solutions across early phase through post-marketing, including clinical operations, bioanalytical labs, cardiac safety, medical imaging, and regulatory affairs.
- IIT Research Institute
Midsize preclinical CRO specializing in GLP-compliant toxicology, IND-enabling safety studies, infectious disease vaccine development, and inhalation toxicology with onsite integrated laboratories and 60+ years of regulatory partnership experience.
- ITR Laboratories
GLP-compliant nonclinical CRO specializing in safety and toxicology testing across in silico, in vitro, and in vivo modalities, with 35+ years of experience and nearly 6,000 completed studies.
- Innovate Research
Indian CRO providing end-to-end clinical trial services (Phase I–IV), regulatory support, medical writing, biostatistics, data management, and biospecimen procurement across pharmaceuticals, biologics, medical devices, and nutraceuticals.
- JSS Medical Research
Full-service CRO with over 30 years of experience offering clinical trials, biostatistics, medical writing, and health economics services across all phases of development.
- KCAS Bio
Leading bioanalytical CRO with 45+ years of experience, supporting 315+ approved drugs through bioanalysis, biomarker, immunogenicity, flow cytometry, and clinical kitting services across US, EU, and Australia facilities.
- Komodo Health
Komodo Health provides healthcare AI and real-world data analytics for life sciences organizations. Its platform combines a large-scale US healthcare data foundation with validated AI analyses and connected workflows for development through launch.
- Lindus Health
Lindus Health is a clinical research organization delivering end-to-end trial execution across Phase 1–2a programs with proprietary AI-driven patient recruitment, integrated site networks, and performance-based pricing. The company has completed 45+ trials with 82% on-time enrollment and operates across the US, UK, and Europe.
- Lotus Clinical Research
Specialized CRO supporting clinical development in neuroscience and metabolic disease across all phases, with direct access to 20 wholly-owned US research sites and 400+ beds.
- Medpace
Full-service CRO with 30+ years of organic growth, offering integrated clinical development services across all phases with wholly-owned central labs, bioanalytical lab, imaging core lab, and Phase I unit.
- Microbac Laboratories
Full-service analytical testing laboratory providing pharmaceutical, food, environmental, and antimicrobial testing services across multiple U.S. locations.
- Optum Life Sciences
Optum is a leading healthcare company that provides integrated medical, pharmacy, and financial services across the United States. Founded in April 2011 as a UnitedHealth Group company, Optum serves more than 120 million people through a network of doctors and care teams.
- PCM Trials
World's largest independent, community-based clinical trial site network offering decentralized and mobile research services across diverse patient populations globally.
- PPD
PPD is a leading global contract research organization (CRO) and the clinical research business of Thermo Fisher Scientific.
- Perceptive
Leading clinical research organization providing preclinical to late-phase imaging, randomization and trial supply management (RTSM), and eClinical services to the global biopharmaceutical industry.
- Pharmaron
Premier life science CRO and CDMO offering integrated R&D and manufacturing across drug discovery, preclinical, clinical development, and commercialization for small molecules, biologics, and cell & gene therapies. 25,000+ employees across China, US, and UK.
- Premier Research
Premier Research is a global full-service CRO delivering clinical research and development solutions across the complete drug development lifecycle. The organization provides comprehensive capabilities spanning study design, study startup, medical affairs, biostatistics and data management, central monitoring, clinical monitoring and site management, project and risk management, safety and pharmacovigilance, quality and compliance, and medical writing.
- PrimeVigilance
Pharmacovigilance and safety services provider offering end-to-end operations, technology-driven solutions, and specialized expertise in vaccines, CGT/ATMP, pediatric medicines, and geriatric populations.
- ProBio
ProBio is a leading global CDMO subsidiary of GenScript Biotech Corporation, providing end-to-end services for biologics and cell & gene therapy (CGT) from drug discovery through commercialization.
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