What stage does Varion Ventures invest at?

Varion Ventures invests at Pre-Seed, Seed stages.

What sectors does Varion Ventures invest in?

Varion Ventures invests in Developer Tools, AI / ML.

Who are the partners at Varion Ventures?

Partners at Varion Ventures include Konstantin Vinogradov (GP).

What has Varion Ventures invested in recently?

Varion Ventures has 14+ portfolio companies, including Higgsfield, Sidekick, xmemory, Perplexity, Elastic.

How much capital does Varion Ventures manage?

Varion Ventures manages approximately $1B in assets under management.

Where is Varion Ventures located?

Varion Ventures is based in San Francisco, CA.

Varion Ventures — Pre-Seed & Seed VC Firm (Up to $750K Checks)

San Francisco, CAProfile updated October 2026Website

Varion Ventures is a Pre-Seed, Seed venture capital firm based in San Francisco, CA investing in Developer Tools, AI / ML. The firm typically writes Up to $750K checks and has 14 portfolio companies in our records.

Check size: Up to $750K
Portfolio: 14 companies on record
Partners: 1 listed
AUM: $1B
Stage: Pre-Seed, Seed
Sectors: Developer Tools, AI / ML
HQ: San Francisco, CA

Last verified: 2026-10-26

How to approach: cold outreach ok

Stage

Pre-Seed, Seed

Check Size

Up to $750K

AUM

$1.0B

Portfolio

14+ companies

Team

1 partner

Investment Thesis

Solo-GP fund backing next-gen infrastructure software with a focus on technical founders using AI and open source to reshape the modern tech stack. The firm emphasizes high-conviction early checks and can be a first institutional investor.

How Varion Ventures invests

Varion Ventures is a vc firm based in San Francisco, CA. The firm invests at the Pre-Seed, Seed stages, with a focus on Developer Tools, AI / ML.

Varion Ventures typically writes checks of Up to $750K per investment, backed by approximately $1B in assets under management. Our records include 2 funds raised by the firm.

Varion Ventures has backed 14 companies in our records, including Higgsfield, Sidekick, xmemory.

Partners & Team

Konstantin Vinogradov

Infrastructure software

Open source

Tech-savvy investor specializing in open source, AI, and infra software, with over a decade of VC experience, including seed checks in Higgsfield, Mastra, White Circle, Keep (acquired by Elastic), and Sidekick (acquired by Perplexity). Previously Konstantin was a General Partner at Runa Capital, where he also created and led a quarterly ranking of trending open-source startups (the ross index ROSS Index), and headed the development of the fund's internal data platform. Besides investing, Konstantin founded and chairs the Open Source Endowment.

Industry Focus

Invests In

Developer Tools

AI / ML

Funds

Fund II

$300M2022

actively investing

Fund I

$200M2020

fully deployed

Recent Activity

Raised Fund II ($300M)

2022 · fund records

Raised Fund I ($200M)

2020 · fund records

Portfolio Companies (14)

Other

Higgsfield

AI infrastructure for video and image generation

Sidekick

AI-powered productivity browser built for work

xmemory

Programmable memory layer for agentic systems

Perplexity

Acquired by Perplexity

Elastic

Acquired by Elastic

Mastra

Open-source TypeScript framework for AI agents

White Circle

AI safety and alignment infrastructure platform

Entire

Next-gen developer platform for humans and AI agents

Rork

AI-powered mobile app development platform

Twenty

Open-source CRM, a modern alternative to Salesforce

How to pitch Varion Ventures

•Raising at Pre-Seed, Seed? You're squarely in their sweet spot.
•Lead with your fit in Developer Tools, AI / ML — the sectors they actively back.
•Size your ask to their typical Up to $750K check.
•cold outreach ok
•Address your outreach to a specific partner, such as Konstantin Vinogradov, GP.
•A warm introduction beats a cold email. Get matched and request an intro.