Investors / Side Door Ventures
Side Door Ventures
Venture capital
Side Door Ventures is a global venture capital firm that invests in early-stage and later-stage companies. It describes itself as a generalist investor backing founders across software, life sciences, space, frontier tech, blockchain, gaming, and financial services.
Invests inAI & Machine Learning
In its own wordsfrontier techlife sciencesfintechsaasweb3deep tech
Your fit with Side Door Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsSide Door Ventures lists 9 checked portfolio companies on its own site and is named in 3 funding rounds. Its most frequent entry is Seed, 67% of the companies with a known first round. Its largest themes are AI & Machine Learning (29%), Fintech (14%) and Healthcare & Biotech (14%). 86% of its companies are based in United States. It invests most often alongside Also Capital, ArkStream Capital and Arrington Capital.
Counts come from funding rounds that name Side Door Ventures, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Entry stage
share of companies by the stage of its first roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 67% |
| Series A | 33% |
| Series B | 0% |
| Growth | 0% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 2 | 0 |
| '26 | 1 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 19th | 9 companies |
| Recent activity | 59th | 1 rounds in 12 months |
| Early stage | 80th | 67% of entries at pre-seed or seed |
| Evidence | 52th | 0% of companies confirmed by a round |
| Sector focus | 48th | 29% in its largest sector |
| Reach | 42th | 2 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 29% | 18% |
| Fintech | 14% | 12% |
| Healthcare & Biotech | 14% | 15% |
| Crypto & Web3 | 7% | 1% |
| Legal & Compliance | 7% | 2% |
| E-commerce & Marketplaces | 7% | 6% |
| Consumer | 7% | 3% |
| Space & Defense | 7% | 3% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Also Capital | 2 |
| ArkStream Capital | 2 |
| Arrington Capital | 2 |
| Earthrise Ventures | 2 |
| Giant Step Capital | 2 |
| Lightspeed Venture Partners | 2 |
| Lux Capital | 2 |
| Redpoint Ventures | 2 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers9100%
- No longer answers00%
- Points to another company00%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherCompare Side Door Ventures head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Funds
as stated on its siteRecent portfolio activity
when companies last raised with Side Door Ventures| Date | Company | Stage |
|---|---|---|
| 8 Oct 2026 | Series A | |
| 13 Oct 2025 | Seed | |
| 19 Sept 2025 | Seed |
Round details for Side Door Ventures
Amounts, full round histories and every co-investor in Side Door Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
9 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Bitlight Labs develops infrastructure and solutions for the Bitcoin Lightning Network ecosystem, including wallets, nodes, and payment frameworks. | FintechCrypto & Web3 | Sept 2025Seed | Funding round | |
| Candela produces and sells Mamajuana, a type of botanical rum | Food & Agriculture | Portfolio page | ||
| Portfolio page | ||||
| Fortastra builds spacecraft to defend the infrastructure that sits in space. | AI & Machine LearningAI & Machine Learning | Oct 2026Series A | Funding round | |
| K2 Space builds high-power satellite platforms | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| Mysten Labs creates advancements for the internet | Healthcare & BiotechFintech | Portfolio page | ||
| Varda Space Industries processes materials in orbit in microgravity and returns them to Earth, offering services for government reentry testing and biopharma research. | Space & DefenseHealthcare & Biotech | Portfolio page | ||
| Walkway.ai helps tours and activities operators optimize pricing and revenue with dynamic pricing recommendations and automation. | Legal & ComplianceE-commerce & Marketplaces | Oct 2025Seed | Funding round | |
| Way powers the experiential strategies of industry-defining brands worldwide, from luxury hospitality groups to aviation, fashion, and beyond. | Consumer | Portfolio page |
About this data
site last read 8 Nov 2026- Site
- sdv.vc
- Last read
- 8 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 19 Sept 2025
- Companies checked
- 9
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
Get Side Door Ventures' profile as data
Pull Side Door Ventures' portfolio, co-investors and changes through one API key or MCP, open every portfolio row, compare it with other firms, and get an email when it adds a company or files a fund.
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- Full listsEvery portfolio row and two-firm overlap
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- AlertsFollow 5 investors for portfolio and fund changes
$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/sdv.vc
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GET /v1/firms/sdv.vc/portfolio
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