Solo-founder studio · Est. 2024

Solo-founder AI-native ventures, from small bets to venture-scale.

Grazier Ventures is the solo-founder studio of Duncan Grazier, a three-time CTO. We originate and operate AI-native software companies — each founded and led by one operator. Some are bootstrapped and stay that way. Others are venture-scale from day one and raise when the thesis demands it. A technical advisory practice runs alongside.

Founded 2024
Based Southern California
Model One founder per venture
Active ventures 5

01 — Thesis

The solo founder is the new venture-scale unit.

AI-native by default

Every venture is built assuming AI is a peer on the team — in the product, the codebase, and the operations. We design for leverage, not headcount.

One founder per venture

Each company has a single operator accountable end-to-end. Some stay lean and bootstrapped. Others are venture-scale from day one and raise outside capital when the opportunity warrants it.

Technical advisory

A CTO-grade advisory practice for founders, boards, and investors facing decisions that will shape their engineering organization for years. Operates under the Tidehelm brand.

Writing & thinking in public

Essays on engineering leadership, AI, and the craft of building alone with machines. An obligation of operating: to give back the lessons that can only be earned by doing.

02 — Portfolio

What we’re building and operating.

Aqen

The AI cofounder for solo founders. You bring the idea; Aqen coordinates everything else — formation, finance, marketing, branding, and product — against a shared Company Brain that gives every agent founder-level context.

aqen.ai →
Building AI · Venture-scale

Tidehelm

The advisor founders, investors, and CTOs call before the hardest decisions. CTO mentoring, fractional technical leadership, AI strategy, and board advisory.

tidehelm.io →
Operating Advisory · 2026

Highball Platform

An AI-native data platform for real-time trains. Infrastructure, APIs, and tooling for the next generation of rail and transit applications — built and operated by one.

highballplatform.com →
Building Data · Transit

Highball.app

Real-time train tracking for families and rail enthusiasts. A consumer app built on top of the Highball Platform — AI turns raw feeds into a delightful, personal experience.

itsmeduncan.com/highball →
Building Consumer · iOS

itsmeduncan.com

Writing on engineering leadership, AI, and building technology teams. Essays, talks, and the long-running personal archive of Duncan Grazier.

itsmeduncan.com →
Operating Writing

03 — Get in touch

For partnerships, press, or portfolio inquiries.

Direct

For advisory engagements, reach Tidehelm at hello@tidehelm.io.

Elsewhere