Xfund | Activity | F4

Introducing F4 Champions, a new accelerator for founders at the earliest stage.F4 Champions for early-stage foundersEnrollment closesAugust 2Learn more

Team Portfolio Raise Champions Essays

F4/Xfund/Activity

Xfund Activity

Every public signal F4 has attached to this firm, with sources and cross-entity links.

Types

Time range

Exit

Portfolio company Kovr.AI acquired by Fortreum to expand AI-driven cybersecurity compliance platform.

Kovr.AI

Kovr.AIXfund

businesswire.comAPR 14, 2026

APR 14, 2026

3 investments· JAN 2026 – APR 2026Show all

Investment

Participated in Juno's Seed round ($12M) alongside Bonfire Ventures and Impression Ventures.

Juno

JunoXfund

crunchbase.comAPR 2026

APR 2026

Investment

Led seed investment in Can9 Bioengineering, specializing in canine genetics research.

Can9 Bioengineering

Can9 BioengineeringXfund

pitchbook.comFEB 1, 2026

FEB 1, 2026

Investment

Participated in BoldVoice's $21M Series A led by Matrix for AI voice coaching.

BoldVoice

BoldVoice Xfund

businesswire.comJAN 28, 2026

prnewswire.com

JAN 28, 2026

Exit

Portfolio company Pomelo was acquired by Zepz to expand credit services.

Pomelo

Pomelo Xfund

zepz.ioJAN 20, 2026

JAN 20, 2026

Investment

Led BuildCheck's $5.9M Seed round for intelligent construction plan review.

Buildcheck

Buildcheck Xfund

crunchbase.comDEC 2025

DEC 2025

Investment

Co-participated in AirOps' $40M Series B alongside Greylock and others.

AirOps

AirOps Xfund

crunchbase.comNOV 2025

NOV 2025

Exit

Portfolio company Guideline was acquired by Gusto for $815M.

Guideline

GuidelineXfund

crunchbase.comAUG 2025

AUG 2025

Milestone

Portfolio company Substack achieved unicorn status with $1.1B valuation after $100M Series C funding.

Substack

Substack Xfund

axios.comJUL 17, 2025

JUL 17, 2025

Investment

Participated in Chalk's $50M Series A led by Felicis for AI data inference.

Chalk

Chalk Xfund

businesswire.comMAY 28, 2025

builtinsf.com

MAY 28, 2025