a16z Speedrun

Activity from announced rounds

Activity in this selectionUnited States · Oct 9, 2026 · Jan 1, 2026

Speedrun is an a16z investment program. Its company directory includes Circle Games and Keewano, linking the program to mobile-game development and infrastructure for working with event histories.

Recorded funding activity

RoundOS records participation in Circle Games’ Series A and Keewano’s seed round, as well as a lead role in Orbits’ pre-seed financing for an AI household assistant. Other covered activity includes Cascade’s construction-business software and ZeroDrift’s AI communications compliance tools. This page follows the Speedrun program’s recorded activity.

Sources
Rounds participated in
9
Confirmed lead rounds
0
6 roles undisclosed
New companies
9
First participation on record · 0 follow-on
Funding in participating rounds
$79.7M
9 disclosed · full round size, not this investor’s share

By stage

Seed9

By primary sector

Enterprise software4
Consumer1
Ecommerce1
Industrial tech1
Proptech1
1 more
Robotics1

By country

United States9

Rounds

9 in this selection
SafeWorld

SafeWorld develops simulation software for testing robots that operate around people.

$12.2MSeed
Participant
Atorie

Atorie sells clothing and accessories directly from manufacturers to consumers.

$9.5MSeed
Participant
Cascade

Platform to help architecture, engineering, and construction firms find and win projects

$3.5MSeed
Role not disclosed
Fearn

Provides AI-assisted patent-drafting software for inventors and enterprises.

$5.5MSeed
Participant
ZeroDrift

Provides an AI compliance firewall that flags and rewrites non-compliant AI-generated messages before they are sent

$10MSeed
Role not disclosed
Rork

AI platform for building and launching mobile apps using natural language

$15MSeed
Role not disclosed
Taya

Develops AI-powered jewelry for private, on-demand voice capture and reflection

$5MSeed
Role not disclosed
Limy

Provides infrastructure for brands to optimize performance in the Agentic Web

$10MSeed
Role not disclosed
Nexxa.ai

Builds specialized AI agents for heavy industries

$9MSeed
Role not disclosed