Phases
YC S25San Francisco, US · Founded 2025 · 3 employees · 3 known investors
Find your way into Phases
1,304 people in our graph share verified history with the Phases team — schools, employers, funds. One of them is your warm intro.
Khrystyna Penykunlockedknows Anton Zaliznyi · together at National University of Kyiv-Mohyla Academy (overlapped)
×6knows the team · via Y Combinator
×3knows the team · via University of Bath
×2knows the team · via City St George’s, University of London
Phases provides AI-powered oversight for clinical trials, using automated agents to detect operational issues, maintain data standards, and ensure regulatory compliance without manual intervention.
Also known as Patiently
AI & Machine LearningHealthtechHealthcare ITAIConversational AIUnited States of AmericaAmerica / Canada
Founders & leadership· Y Combinator alumni (S25)
Phases was founded in 2025 by James Wall, Anton Zaliznyi, and Jonathan van Wersch.
JW
James WallinCo-Founder & CEOJames Wall has worked on AI data science solutions for major pharmaceutical and consumer companies including J&J and Unilever. He previously built business cases for corporate restructuring initiatives in the consumer goods sector.
AZ
Anton ZaliznyiinCo-Founder / Chief AI OfficerAnton Zaliznyi worked as a software engineer at Palantir and conducted AI research at the University of Toronto, with prior experience building autonomous systems at a defense startup and distributed processing systems at Avid. His research background includes deep learning work on robotic pose estimation, and he now leads Phases, which develops AI agents for clinical trial automation.
JV
Jonathan van WerschinCo-Founder & CTOJonathan van Wersch worked as a software engineer at Meta on machine learning integration for mobile ads, and previously at UK-based Improbable where he led growth of the web platform team. He holds bachelor's and master's degrees in mechanical engineering from the University of Bath, where he served as project manager and engineering lead for the university's rocket team.
Investors · 3
Funding
SEC filings, press & company announcements- Undisclosed amountangel roundDec 2023Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
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Competitors · 3
by search overlapInsight Partners3 shared keywordsInsight Partners is a private equity and growth investment firm focused on software companies, providing capital, operational expertise, and growth services to help portfolio companies scale revenue and profit.
IQVIA3 shared keywordsIQVIA is a healthcare data and technology company that supports life sciences organizations in research, clinical development, and commercialization of medicines and medical solutions.
PhaseV3 shared keywordsPhaseV provides AI/ML-driven software for designing and optimizing clinical trials, including trial simulation, adaptive design, patient subgroup identification, and early endpoint detection. It serves biopharma sponsors and contract research organizations (CROs) in the clinical development and drug trial industry.
Companies competing with Phases for the same Google search keywords, organic and paid, via search-intersection analysis.
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Frequently asked questions
- What does Phases do?
- Phases provides AI-powered oversight for clinical trials, using automated agents to detect operational issues, maintain data standards, and ensure regulatory compliance without manual intervention.
- Who founded Phases?
- Phases was founded by James Wall, Anton Zaliznyi, Jonathan van Wersch in 2025.
- Who are Phases's investors?
- Phases's investors include Dnipro, TRAC (Third Round Analytics Capital), Y Combinator.
- Where is Phases headquartered?
- Phases is headquartered in San Francisco, US.