← Semperr The Company
Est. MMXXI San Francisco Semper paratus

Built to last.

Semperr is a holding company for software and data that serious businesses run on. Deliberately small, privately held, answerable only to our clients and our standards.

42
People
5
Years operating
0
Outside investors
3
Platforms
I.   The story

We started with a refusal.

In 2021, two people left comfortable positions at firms they admired because they could not reconcile what those firms said with what those firms shipped.

The premise was simple: build a company where the people writing the code also answer the phone. Where every engagement has a partner's name on it. Where the client never wonders who is actually doing the work.

Five years later, Semperr is still privately held, still deliberately small, and still answering the same question the same way: build things that work, for people who notice.

2021
Founded in New York
Eleanor Voss and Henry Okafor incorporate Semperr Labs. First client signed within six weeks.
2022
Trace launches
Private-company intelligence platform goes live. First PE fund onboarded within the quarter.
2023
Clad enters beta
Legal-intelligence platform begins serving AmLaw 200 firms. Cork engineering office opens.
2024
Dev launches
Technical services for small businesses. 100 accounts within four months.
2025
HQ moves to San Francisco
Team reaches 42 people across four offices. Still zero outside investors.
2026
Five years in
Same answer to the same question. Three platforms, one charter, no exceptions.
II.   The partners

A name on every engagement.

Semperr is led by its founding partners. No board, no advisors, no committee. Every client engagement has a partner's direct line.

E
Eleanor Voss
Co-Founder · Partner · New York

Former principal at a top-tier data analytics firm. Eleanor oversees Trace, client relationships, and the company's editorial voice. She writes most of The Charterr and believes that if you can't explain the number, you shouldn't ship the number.

H
Henry Okafor
Co-Founder · Partner · San Francisco

Former engineering lead at an institutional software firm. Henry oversees Clad, Dev, and infrastructure operations. He interviews every engineering hire and still reviews production deploys on Friday afternoons.

III.   The charter

Five principles. No exceptions.

Every engagement, every hire, every line of code is measured against the same standard. These are not aspirations — they are terms.

I Rigor Every figure traceable. Every source dated. Every derivation recoverable.
II Discretion Client data is treated as testimony — never shared, never inferred, never sold.
III Durability We build for the decade, not the quarter. If it can’t survive a regime change, it doesn’t ship.
IV Clarity Plain language, honest timelines, no jargon designed to obscure.
V Accountability A name on every deliverable. A partner on every engagement.
Read the full charter →
IV.   Offices

Four cities. One standard.

Every office operates under the same charter. Same tools, same practices, same expectation of care.

San Francisco
Headquarters
Company leadership, Trace engineering, and client operations. HQ since 2025.
New York
Founding Office
Where it started. Client partnerships, Charterr editorial, and East Coast operations.
Cork
Engineering
Clad platform engineering and data infrastructure. European time-zone coverage.
Austin
Dev Operations
Dev service delivery, SMB client support, and technical operations.