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Company

We’re building the research assistant we always wanted.

Prism started in 2023 in a San Jose 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, San Jose and Salt Lake City
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 San Jose, Salt Lake City and four 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’s.

  • Remote-friendly, two offices
  • 16 weeks paid parental leave
  • Annual team week in person
  • Health, dental and vision

Don’t see your role? Introduce yourself anyway.