Bioanalytical CRO Excellence
Welcome to KCAS Bio, your global bioanalytical CRO partner with the expertise, capacity and flexibility sponsors require.
Bioanalytical CRO expertise
KCAS Bio is a leading bioanalytical contract research organization (CRO) with a proven record of advancing drug development worldwide. We have supported more than 315 FDA-approved drugs, developed over 6,200 proprietary and non-proprietary assays, and successfully completed more than 20 FDA audits with no major findings.
As a top bioanalytical CRO lab, we continually invest in the latest instrumentation and combine this technical expertise with a consultative approach, ensuring our clients’ goals are achieved with confidence. Our teams also bring specialized expertise in advanced modalities, allowing us to support the evolving needs of modern drug development. By consistently benchmarking and optimizing our operations, we help scientific innovators and investors move forward with greater certainty.
With facilities across the US and Europe, along with a strategic alliance in Australia, we provide global sponsors with comprehensive services including bioanalytical, biomarker, immunogenicity, cellular and molecular assay capabilities, as well as clinical kitting and sample management.
Did you Know? We have Harmonized Spectral Flow Cytometry on a Global Scale!
KCAS Bio is the only bioanalytical laboratory with globally harmonized Cytek spectral flow cytometers, with sites in the US, EU and Australia.
Global biomarker and bioanalytical CRO lab
KCAS Bio is an established bioanalytical CRO with over 45 years of experience. We understand the human and financial impact of drug development delays. Through our unique approach to capacity planning, we combine the right experts with the right instrumentation to keep development moving smoothly. Our clients consider us a reliable partner because we strive to minimize downtime, avoid delays, and keep lead times as short as possible.
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What our clients say
We consistently earn our clients’ trust based on our reputation for transparency, delivering error-free data and keeping our promises.
KCAS Bio scientific insights

KCAS Bio is engaging with the scientific community in Europe throughout the fall of 2025. From attending sessions to exhibiting at booths, our experts are ready to share knowledge, showcase our capabilities, and discuss how we can support your research across discovery and clinical development. EUROTOX 2025 CongressDate: September…

KCAS Bio is connecting with the scientific community at key U.S. events this year. Whether attending or exhibiting, our experts are ready to share insights, highlight our capabilities, and discuss how we can support your research from discovery through clinical development. NCCG Annual Meeting 2025 Date: September 22, 2025Location:…

What Are Neutralizing Antibody (NAb) Assays? Neutralizing antibodies (NAbs) are a subset of anti-drug antibodies (ADAs) that play an important role in evaluating the immunogenicity, safety, and efficacy of a drug product. While most drugs carry a low risk of eliciting NAbs and do not require a validated NAb…
Advancing great people and great science
We make nurturing new talent a strategic priority, so that teams are dynamic and constantly improving. We provide a supportive environment for continuous learning and training where you can become your best.

Tell us how we can help with your project
We've earned our reputation for delivering reliable, error-free data. We understand the importance of speed, flexibility, and consistency and only make promises we can keep.