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Lucas Siow on the TechTO stage

Lucas Siow

Co-founder & CEO, ProteinQure

BiotechTorontoOn TechTO stages since 2020

Lucas Siow is co-founder and CEO of ProteinQure, the Toronto company designing protein-based drugs with machine learning and molecular simulation. Its lead candidate entered clinical trials in 2025 — which Siow told BetaKit was the first drug in trials from an Ontario AI company — and he spoke at TechTO in 2020 on the hardest part of building a startup.

On the TechTO stage ×1

First seen on the TechTO stage in 2020. Every talk is searchable — ask the archive about Lucas

In their words

if people don't know about you they're not going to apply and if they're not going to apply you don't go tell their friends about you

TechTO, Feb 2020 · watch at 02:13

the hardest part of building a startup is building the team and it's also one of most important parts because if you build a great team a lot of the other parts of the startup become a lot easier

TechTO, Feb 2020 · watch at 00:53

I went and I called software engineers in Toronto who weren't willing to apply and I said please just talk to me about what you're looking for and why do you love about what the place you're working out today

TechTO, Feb 2020 · watch at 04:03
A few quotes can’t cover everything Lucas said on the TechTO stage. 1,600+ talks are searchable.Ask about Lucas

Around the web ×1

Quick answers

What does ProteinQure do?

It designs protein-based therapeutics — peptides and antibodies — using machine learning and molecular simulation, and takes its own candidates toward the clinic.

Who founded ProteinQure?

Lucas Siow with Tomas Babej, Chris Ing and Mark Fingerhuth, in 2017 in Toronto.

How much has ProteinQure raised?

An $11-million Series A announced in May 2025 from Heron Rock Fund, Golden Ventures and Kensington Capital, bringing total funding to about $16 million.

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Maintained by TechTO · facts sourced and dated · last reviewed Jul 26, 2026