A record of exceptional businesses.

Our portfolio reflects the industries, technologies, and founders shaping the future. Each investment is documented as part of a continuing archive of enduring companies.

Portfolio Companies
51
Current Investments
49
Realized
2
Sectors
17

We invest in companies built to last. Our work begins with conviction, is earned through partnership, and is measured across cycles rather than quarters.

Concentrated

We make a small number of investments each year, in companies we expect to know for a decade.

Operator-aligned

We act as a patient partner to founders, taking positions sized to matter without distracting them.

Research-led

Every commitment begins with a written thesis and a defined view of the market it serves.

Avg. hold
8+ yrs
Active boards
49
Median check
$24M
Reinvestment
78%

We expect to be the longest-tenured outside shareholder in the companies we back. Time horizon is our primary advantage, and the discipline that shapes every other decision we make.

  • No. 001
    Meridian Systems
    Enterprise Software
    2021
  • No. 002
    Vellum Health
    Healthcare
    2020
  • No. 003
    Halden Grid
    Energy & Climate
    2019
  • No. 004
    Tessera Finance
    Financial Infrastructure
    2022
  • No. 005
    Kernel Runtime
    Developer Infrastructure
    2018
  • No. 006
    Lantern Security
    Cybersecurity
    2021

Building something enduring?

We read every note. If your company belongs in the archive, we would like to hear from you.

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