Fundraising Fox

Anton Zaliznyi

Founder

Co-founder & Chief AI Officer at Phases

Toronto, Ontario, Canada

FoundedPhases · YC

About

Anton 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.

Co-founder & Chief AI Officer at PhasesYC S25

Intro paths

YC

Anton went through Y Combinator (Summer 2025) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Gustaf Alstromer — the partner who ran Phases's batch and knows the company first-hand. YC profile ↗

→

In turn, Anton can intro founders to Phases's investors below.

Phases's investors · 3

DniproPalo AltoTRAC (Third Round Analytics Capital)San Francisco · $250K – $2M checksY CombinatorSan Francisco · $500K checks · since 2025

Co-founders at Phases

JWJames Wall
James WallCo-founder & CEO
JVJonathan van Wersch
Jonathan van WerschCo-founder & CTO

Experience

  1. PhasesCo-Founder / Chief AI Officercurrent2025 — presentSan Francisco Bay Area
  2. Palantir TechnologiesSoftware Engineer2025London, England, United Kingdom
  3. Palantir TechnologiesSoftware Engineer Intern2024Greater London, England, United Kingdom
  4. University of TorontoAI Research Engineer2023 — 2024Toronto, Ontario, Canada
  5. KrattWorksSoftware Engineer2023Tartu, Tartumaa, Estonia
  6. AvidSoftware Engineer2021 — 2023Kyiv, Ukraine

Frequently asked questions

Who is Anton Zaliznyi?
Anton 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.
Where does Anton Zaliznyi work?
Anton Zaliznyi is Co-founder & Chief AI Officer of Phases.
What companies did Anton Zaliznyi found?
Anton Zaliznyi founded Phases.
Where did Anton Zaliznyi go to school?
Anton Zaliznyi studied at Y Combinator (Alumni); University of Tartu (Master's degree, Computer Science); Hanyang University (Exchange Student, Business Administration and Management).

Founder mafias

Y Combinator mafia8,773

Also came through, then founded or led a company.

Sam AltmanPresidentFounded Tools for Humanity +3Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianYC Summer 2005Founded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded HotspotsTrae StephensYC Winter 2022Founded Pursuit +1

+ 8,766 more

Y Combinator mafia4,716

Also came through, then founded or led a company.

Ryan SheaEntrepreneurshipFounded StacksTarek MansourFounded KalshiSuhail DoshiEating beans & riceFounded Playground +1Subomi OluwalanaW22Founded ConvoyDarius "Bubs" MonsefS19Founded Sightbox +3Matthew ScholzFounded Oisin Biotechnologies +3

+ 4,709 more

University of Tartu mafia6

Also came through, then founded or led a company.

Ragnar SassMarketing & LeadershipFounded Clanbeat +1Vahur HansenComputer ScienceFounded Roleo +1Rain RannuMBAFounded FortumoVeljo OtsasonBScFounded FortumoStanislav IvanovMBAFounded Tera Ventures I

Hanyang University mafia2

Also came through, then founded or led a company.

Jun KimBachelorFounded Aside

National University of Kyiv-Mohyla Academy mafia2

Also came through, then founded or led a company.

Vlad YatsenkoMasterFounded Revolut

Same school

Also attended Y Combinator2,000

Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyMaroof AhmedFounder at Octopus VenturesJustin SwartPartner at Bitkraft Esports VenturesCollin WallaceGeneral Partner at Lobby Capital

+ 1,994 more

Also attended University of Tartu41

Kristjan LaanemaaFounding Partner at Karma VenturesRiin VähkFinance Manager at Karma VenturesAnti KodarInvestor at Butterfly VenturesErki MölderManaging Partner at Verge HealthTech FundRain RannuFounding Partner at SuperAngelVeljo OtsasonGeneral Partner at SuperAngel

+ 35 more

Also attended Hanyang University13

Sophie BarchettiVenture Analyst at Notion CapitalMelis AtaOperations | Venture Fellow at 212Archi KongManaging Partner at Asia2G CapitalJihoon JeongGeneral Partner at Asia2G CapitalAndrew JeonGeneral Partner at Asia2G CapitalEduardo MarinoAnalyst at Matterwave Ventures

+ 7 more

Also attended National University of Kyiv-Mohyla Academy9

Vlad YatsenkoCo-founder & CTO of RevolutKhrystyna PenykInvestment Associate at Luge CapitalMaks StrukovAssociate at Geek VenturesMaksym StrukovAssociate at Geek VenturesElena MazhuhaPartner at Flyer One VenturesMykyta FediushynInvestment Analyst at Flyer One Ventures

+ 3 more

Shared employers

Also worked at Phases2

James WallCo-founder & CEO at PhasesJonathan van WerschCo-founder & CTO at Phases

Also worked at Palantir Technologies220

Garry TanPresident & CEO of Y CombinatorJoe LonsdaleFounder & Managing Partner of 8VC; co-founder of Palantir and AddeparTrae StephensPartner at Founders Fund and co-founder of AndurilTarek MansourCo-founder & CEO of KalshiViviana FagaGeneral Partner at Felicis VenturesBryan OffuttInvestor at Index Ventures

+ 214 more

Also worked at University of Toronto85

Raquel UrtasunFounder & CEO of WaabiNick FrosstCo-founder of CohereAngelaGeneral Partner at Version One VenturesGraham CareyInvestment Director - Advanced Materials at Emerald Technology Ventures AgJoel DrewryPrincipal at Versant VenturesLeonid BoguslavskyPartner & Founder at RTP Global

+ 79 more

Also worked at Avid7

Louis Hernandez, Jr.Founder and CEO at Black Dragon CapitalHeather RafterFounder & Principal, RafterMarsh US at The 98Jenn BennettVenture Advisor at Pier 70 VenturesElisabeth LaettInvestor at Holt XchangeAlex SukennikInvestor at Stage 2 CapitalGlover LawrencePartner at FounderPartners

+ 1 more