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Discovery got fast. Development should keep pace.

Paceline Bio is the biospecimen logistics and operations team built to shorten the path from candidate to IND. Submit a procedure and get a quote within 24 hours. No weeks of back and forth, and the work runs on your timeline.

The bottleneck moved

AI-driven discovery can now produce drug candidates faster than ever. Getting a candidate to IND still takes years, and much of that time isn't science. It's coordination: negotiating with CROs, chasing samples and shipments, reconciling data from a dozen sources, and packaging it all for a data room. Each handoff adds weeks, and together they add months to every program.

We've lived through this, and we're rebuilding it for how drug development works today.

Built for speed at every step

Speed comes from removing the waiting, not cutting corners. Our intake workflow turns your request into a quote within 24 hours, and every procedure you submit runs under a single MSA, so new work never restarts contracting.

After that, the same connected system keeps things moving. Your dashboard shows kit status, shipments, and inventory without having to ask anyone. You're notified when biospecimens arrive for storage and can request access whenever you need them. Because every sample is tracked with a full chain of custody from first collection, your data is ready to aggregate and report on instead of being reconstructed later.

Built for your agents, too

More of your team's work now runs through AI agents, and your operations partner should be able to keep up. We're building an API and MCP server so your agents can request a quote, check sample status, or pull inventory directly, without anyone relaying emails.

Light by design

AI-enabled software and an automated lab keep our costs low and turnaround fast. That lets us be a partner that accelerates your program, not one more organization you have to manage around.

Where we're going

Today, we take biospecimen management off your critical path. Next, we're extending into analysis-ready assay data, aggregation, and a data room you build with us as you go, so when you reach IND, the package is already assembled.

We're just getting started.

Who we are

Andrea Mazzocchi

Andrea Mazzocchi, PhD

Co-Founder and CEO

PhD in Biomedical Engineering, with expertise in tissue engineering, laboratory automation, and oncology precision medicine. Founded Known Medicine (YC S20), acquired by Pathos AI in 2023. Designed specimen handling protocols and collection kits, designed and operated custom laboratory workflows, and has built and evaluated the data rooms for buying and selling assets.

Ian Miller

Ian Miller

Co-Founder and CTO

Previously co-founder and CTO at Gecko Robotics (YC W16), building software and hardware for industrial inspection systems in data-intensive field environments. Experience building automated lab systems at Known Medicine. Architected and builds our clinical data platform in-house, including the unified data model underlying specimen custody and trial data management.

Paceline Bio is headquartered and has laboratory operations in Boulder, Colorado.

Contact us

Need help getting started or want to learn more? We'll get back to you within 24 hours.