Recent Funding
Investors
Side Door Ventures

Side Door Ventures portfolio

Side Door Ventures has 6 portfolio companies on record at Recent Funding, with 2 investments in the last 12 months.

Website: sidedoorventures.co.

Type: Venture capital.

Portfolio on Recent Funding: 6.

Deals, last 12 months: 2.

Capital in their rounds: $73.1M.

Latest deal: Fortastra · Oct 8, 2026.

About this page

It is a venture capital firm based in US, founded in 2020. Its most recent investment on record is Fortastra's $30M Series A round in October 2026, alongside RSquared VC, Upfront Ventures, ATX Venture Partners and 2 others. By category, its portfolio leans toward Logistics and mobility (2) and Consumer and social (1). It has co-invested with Upfront Ventures, First In and ATX Venture Partners.

About Side Door Ventures

Firm type: Venture capital.

Headquarters: US.

Founded: 2020.

Stages: Pre-Seed, Seed, Series A.

Sectors: Advanced Manufacturing, AI & Machine Learning, Biotech, Cleantech, Crypto & Web3, Deep Tech, Energy, Fintech, Gaming, Mobility & Transportation, SaaS, Sector Agnostic, Space Tech.

Check size: $300K to $5M.

Leads rounds: Yes.

What Side Door Ventures invests in

Logistics and mobility · 2 · 33%
Consumer and social · 1 · 17%
Prediction markets · 1 · 17%
Crypto payments · 1 · 17%
DePIN · 1 · 17%
Health and bio · 1 · 17%
Cybersecurity · 1 · 17%
Developer tools and cloud · 1 · 17%

Side Door Ventures recent investments

Company	Round	Date	Alongside
FFortastra	Series A · $30M	Oct 8, 2026	RSquared VC, Upfront Ventures, ATX Venture Partners +2
MMyriad	Seed	Mar 19, 2026	Everest Ventures, Orange Cap Games, Auros +11
Eether.fi	Seed · $5.3M	Feb 28, 2023	Legends Group, North Island Ventures (lead), Chapter One (lead) +6
MMysten Labs	Series A · $36M	Dec 1, 2021	Hack VC, Standard Crypto, Samsung Next +7
BBiosapien	Seed · $1.8M	Nov 11, 2021	George and Saul, Cedas Foundation, SOSV (lead) +6

How Side Door Ventures invests

Stage	Deals	Capital in rounds
Seed	3 60%	$7.1M
Series A	2 40%	$66M

Year	Deals	Capital in rounds
2021	2 40%	$37.8M
2023	1 20%	$5.3M
2026	2 40%	$30M

Side Door Ventures portfolio companies

FFortastra$30MSeries A · Oct 2026
MMyriadSeed · Mar 2026
Eether.fi$5.3MSeed · Feb 2023
MMysten Labs$36MSeries A · Dec 2021
BBiosapien$1.8MSeed · Nov 2021
VValidation Cloudbacker

Company	Round with Side Door Ventures	Total raised	Latest raise
FFortastra Logistics and mobility	Oct 8, 2026 Series A · $30M	$30M	Oct 8, 2026 Series A
MMyriad Prediction markets	Mar 19, 2026 Seed	undisclosed	Mar 19, 2026 Seed
Eether.fi Crypto payments	Feb 28, 2023 Seed · $5.3M	$28.3M	Feb 28, 2024 Series A
MMysten Labs DePIN	Dec 1, 2021 Series A · $36M	$336M	Mar 23, 2023 Series B+
BBiosapien Health and bio	Nov 11, 2021 Seed · $1.8M	$9.8M	Jan 27, 2025 Series A
VValidation Cloud Cybersecurity	backer	$15M	Aug 14, 2026 Series B+

Most frequent co-investors

Similar investors

Investors whose portfolios on Recent Funding center on the same category (Logistics and mobility).

How this is counted

Firm profile: Fundraising Fox Open Dataset v2026-11, CC BY 4.0. Track-record counts are theirs, not Recent Funding's.

Share is of the 5 rounds on Recent Funding that name Side Door Ventures. Rounds with no announced date are left out of the year split, and "round" is a round whose stage is not on file.

Portfolio companies are the companies on Recent Funding with a round that lists Side Door Ventures, which is a subset of its real portfolio. API: /api/v1/investors/side-door-ventures (get a free API key). More: the most active VC firms and new venture capital funds.