Company
We’re building the research assistant we always wanted.
Prism started in 2023 in a Toronto library basement, where two of us spent a year watching analysts paste chatbot answers into reports and then spend the afternoon checking them.
We think an assistant earns trust the way a good colleague does: by showing where every fact came from and saying “I don’t know” out loud. Everything we build starts there.
- Founded
- 2023
- People
- 64
- Customer teams
- 4,200
- Offices, Toronto and London
- 2
What we believe
Three rules we don’t bend.
Show the work
If Prism says it, Prism cites it. When sources disagree or run out, the answer says so instead of guessing.
Defaults are decisions
No training on customer data, permissions inherited, retention you control. Safe is the default, not an upsell.
Fast is a feature
A careful answer nobody waits for beats a perfect one that arrives too late. We budget latency like we budget accuracy.
Team
Librarians, researchers and engineers.
64 people across Toronto, London and nine time zones, backed by Northlight Ventures and Fieldstone Capital.
Lena Hartmann
Co-founder & CEO
Ran research tooling at a national library for eight years.
Kwame Mensah
Co-founder & CTO
Built search infrastructure serving a billion queries a day.
Sofia Marchetti
Head of Research
Publishes on citation faithfulness and evaluation.
Daniel Cho
Head of Engineering
Previously led platform teams at two developer-tool startups.
Aisha Siddiqui
Head of Security
Took three companies through their first SOC 2 audits.
Mateo Alvarez
Design Lead
Designs interfaces for people who read for a living.
Hana Kobayashi
Developer Relations
Maintains the SDKs and answers every API forum post.
Olu Adeyemi
Head of Sales
Sells to security teams by showing them the audit log first.
Careers
Help us make AI you can check.
Salaries are published in every listing. Everyone gets equity, a $2,000 learning budget and four weeks off, plus the week between Christmas and New Year.
- Remote-friendly, two offices
- 16 weeks paid parental leave
- Annual team week in person
- Health, dental and vision
- Research Engineer, RetrievalResearchToronto or remote (Americas)
- Applied Scientist, EvaluationResearchLondon
- Senior Frontend EngineerEngineeringRemote
- Infrastructure Engineer, InferenceEngineeringToronto
- Security EngineerEngineeringLondon or remote (Europe)
- Solutions EngineerGo-to-marketRemote (Americas)
- Enterprise Account ExecutiveGo-to-marketLondon
- People Operations PartnerOperationsToronto
No open roles on this team right now.
Don’t see your role? Introduce yourself anyway.