Investors / Sweden / Longrun Capital
Longrun Capital
Venture capital · Stockholm, Sweden · Europe
Longrun Capital is a venture capital firm founded in 2021 that invests in early-stage climate tech companies. It focuses on innovations along the value chain of the built environment, particularly advanced materials and energy solutions for buildings and construction.
Invests inIndustrial & ManufacturingReal Estate & ConstructionE-commerce & Marketplaces
In its own wordsclimate techbuilt environmentconstructionadvanced materialsenergyimpact investing
Your fit with Longrun Capital
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsLongrun Capital lists 8 checked portfolio companies on its own site and is named in 2 funding rounds. Its most frequent entry is Seed, 50% of the companies with a known first round. Its largest themes are Industrial & Manufacturing (33%), Real Estate & Construction (17%) and E-commerce & Marketplaces (17%). 67% of its companies are based in United States. It invests most often alongside OpenSky Ventures, Granite Partners and Operator Partners.
Counts come from funding rounds that name Longrun Capital, 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 | 50% |
| Series A | 50% |
| 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 | 0 | 0 |
| '26 | 2 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 15th | 8 companies |
| Recent activity | 69th | 2 rounds in 12 months |
| Early stage | 73th | 50% of entries at pre-seed or seed |
| Evidence | 52th | 0% of companies confirmed by a round |
| Sector focus | 62th | 33% 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 | |
|---|---|---|
| Industrial & Manufacturing | 33% | 7% |
| Real Estate & Construction | 17% | 3% |
| E-commerce & Marketplaces | 17% | 6% |
| Climate & Energy | 8% | 1% |
| Education | 8% | 7% |
| Healthcare & Biotech | 8% | 15% |
| Space & Defense | 8% | 3% |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers8100%
- 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.
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| OpenSky Ventures | 2 |
| Granite Partners | 1 |
| Operator Partners | 1 |
| RA Capital | 1 |
| Science | 1 |
| UpScaleX | 1 |
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with OpenSky Ventures
Compare Longrun Capital head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with Longrun Capital| Date | Company | Stage |
|---|---|---|
| 25 Aug 2026 | Series A | |
| 29 Jul 2026 | Seed |
Round details for Longrun Capital
Amounts, full round histories and every co-investor in Longrun Capital's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
8 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| 3eflow develops and installs a smart tap water system for homes and buildings | Real Estate & ConstructionHealthcare & Biotech | Portfolio page | ||
| The company provides an operating system for TikTok Shop | E-commerce & MarketplacesSpace & Defense | Jul 2026Seed | Funding round | |
| Drupps develops technologies to unlock new water sources, including direct atmospheric water harvesting and capturing exhaust vapour, to help industries meet their water demands. | Industrial & ManufacturingClimate & Energy | Portfolio page | ||
| Ekolution produces and sells hemp-based products, including insulation and building systems, for various applications | Industrial & Manufacturing | Portfolio page | ||
| GreenIron is a metal technology company delivering reduction and recycling as a service | Industrial & Manufacturing | Portfolio page | ||
| Levanta provides a platform for e-commerce brands to manage affiliate and creator marketing programs | E-commerce & Marketplaces | Aug 2026Series A | Funding round | |
| NODA Intelligent Systems provides advanced analytics and decision-support solutions for energy and utility companies, as well as real estate owners. | EducationReal Estate & Construction | Portfolio page | ||
| NSS Water produces ultra-pure water for semiconductor manufacturing and other high-purity applications | Industrial & Manufacturing | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- longruncapital.com
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 29 Jul 2026
- Companies checked
- 8
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 Longrun Capital's profile as data
Pull Longrun Capital's 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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$ curl -H "X-API-Key: YOUR_KEY" \
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