LongRun Capital
LongRun Capital is a Stockholm-based venture capital firm founded in 2021 and backed by the Ljungberg family, investing SEK 5-20 million in seed to Series A Nordic climate technology companies focused on advanced materials and energy solutions for the built environment sector.
- Company typePrivate
- Founded2021
- HeadquartersStockholm, Sweden
- Headcount1–10
- GTM typeB2B
- OfferingServices
What LongRun Capital does
LongRun Capital is a Stockholm-based venture capital firm founded in 2021 by Johan Frenckner and Cristina Ljungberg, backed by the Ljungberg family whose wealth originates from Swedish real estate holdings including Nasdaq Stockholm-listed Atrium Ljungberg. The firm manages approximately SEK 300 million in total assets, of which SEK 80 million has been deployed across seven early-stage climate technology companies focused on advanced materials and energy solutions for the built environment sector, which accounts for 37% of global carbon emissions. Its investment thesis targets seed to Series A Nordic companies with typical ticket sizes of SEK 5-20 million for 10-20% ownership stakes, prioritizing climate impact per invested krona alongside financial returns.
The firm generates returns through capital appreciation and future exits from its portfolio rather than selling products or services. Its go-to-market centers on privileged deal sourcing through the Ljungberg family's deep Swedish real estate and construction network, complemented by active ownership support including commercialization assistance and follow-on capital. Portfolio companies span carbon-negative building materials (Ekolution's hemp-based insulation), insulated glass (Hybridized), energy optimization AI (NODA Intelligent Systems), fossil-free metals (GreenIron), and water technology (Drupps, NSS Water, 3eflow). Originally founded as a generalist tech investor, the firm has pivoted to a specialized climate-built-environment mandate and made its first cross-border investment in Norwegian Hybridized in April 2025, signaling intent to broaden Nordic coverage.
Revenue is derived primarily from management fees on the SEK 300 million AUM base plus future carried interest on successful exits, and is not publicly disclosed. The firm operates with 1-10 employees and is privately held as Longrun Capital AB under Swedish jurisdiction. As a family-office vehicle, capital is sourced almost exclusively from the Ljungberg family, which simultaneously constrains fund size and provides patient, mission-aligned capital with no near-term fundraising pressure.
LongRun Capital firmographics
Firmographics- Name
- LongRun Capital
- Legal name
- Longrun Capital AB
- Website
- https://longruncapital.com
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- LongRun Capital is a Stockholm-based venture capital firm founded in 2021 and backed by the Ljungberg family, investing SEK 5-20 million in seed to Series A Nordic climate technology companies focused on advanced materials and energy solutions for the built environment sector.
- Ownership category
- akta.pro rank
LongRun Capital industry classification
Industry- Product category
- Climate Venture Capital / Impact Investment Management
- NAICS
- Portfolio Management and Investment Advice (52394)
- SIC
- Investment Advice (6282)
- akta.pro primary industry
- Early-Stage Venture Capital (Series A/B) (FSANAAAB)
- akta.pro secondary industries
- Energy & Sustainability / Climate Growth Equity (FSANACAG), Renewables & Energy Transition Funds (Solar, Wind, Hydrogen, CCUS) (FSANAEAD)
Keywords
Where LongRun Capital is headquartered
LocationHeadquarters
- HQ city
- Stockholm
- HQ country
- Sweden
- HQ region
- Europe
Offices1 record
Markets served
LongRun Capital business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Others
Distribution channels1 record
Marketing channels5 records
LongRun Capital product offering
Product offeringCore offering
LongRun Capital is a venture capital firm that manages a SEK 300 million climate impact fund and invests seed-to-Series-A equity tickets (typically SEK 5-20 million for 10-20% ownership) in Nordic climate technology startups focused on advanced materials and energy solutions for the built environment. The firm pairs capital with active ownership, commercialization support, and follow-on financing through the Ljungberg family's real estate and construction network.
Product overview
LongRun Capital operates as a unified climate impact investment vehicle rather than a multi-product platform. The firm deploys capital from its SEK 300 million fund into a portfolio of seven climate technology companies focused on the built environment value chain. The portfolio companies span advanced materials (Ekolution's carbon-negative insulation, Hybridized's insulated glass), energy solutions (NODA's AI optimization, GreenIron's fossil-free metals), and water technology (Drupps' airborne water, 3eflow's smart water systems, NSS Water's ultrapure water). LongRun Capital's investment thesis centers on maximizing climate benefit per invested krona through companies with clear real estate and construction connections.
Differentiator
Problem solved
Functional benefit
Products and services
- Longrun Capital Climate Impact Fund A climate impact venture capital fund that invests seed-to-Series-A equity in Nordic climate technology startups focused on advanced materials and energy solutions for the built environment. Typical ticket size SEK 5-20 million for 10-20% ownership. Investors commit capital to the fund vehicle, not individual startups.
Quantifiable outcome
- 37% of global carbon emissions linked to real estate and construction industries
- +1 more outcomes
Companies that use LongRun Capital
Customer profileSegments3 records
Ideal customer profiles1 record
LongRun Capital technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
LongRun Capital partnerships and signals
Strategic signalScale indicators5 records
Recent moves6 records
Expansion highlights5 records
LongRun Capital competitors and assessment
Company assessmentDirect peers
- Norrsken VC: Stockholm-based impact VC investing in early-stage companies solving major global challenges including climate; shares geography, stage, and impact-driven thesis.
- Pale Blue Dot: Sweden-based early-stage VC focused on climate tech, with similar seed/Series A check sizes and Nordic-first thesis; most directly comparable to LongRun in geography, stage, and sector focus.
- Climentum Capital: Nordic early-stage climate tech VC investing at seed/Series A in European climate solutions; same stage, similar ticket sizes, and overlapping portfolio themes (energy, materials, buildings).
- 2150 (formerly Urban Future): Copenhagen-based early-stage VC investing in urban sustainability and built-environment technologies; directly comparable thesis around cities/real estate decarbonization at seed/Series A.
- Voima Ventures: Nordic deep-tech early-stage VC with comparable ticket sizes and pan-Nordic deal sourcing; partially overlapping with climate/sustainability thesis though broader in deeptech scope.
- ByFounders: Pan-Nordic early-stage VC backed by prominent Nordic founders; directly comparable on geography and stage, with broader sector mandate but overlapping climate investments.
Broad incumbents
- Breakthrough Energy Ventures: Bill Gates–backed multi-billion-dollar climate tech fund investing at seed through growth in technologies that reduce GHG emissions; competes for the same entrepreneur pool at the seed stage but with vastly larger capacity and longer duration.
- Lowercarbon Capital: US-based multi-stage climate tech fund deploying hundreds of millions across the climate stack; not a Nordic peer, but the prototypical well-capitalized competitor for the most ambitious European climate founders at seed/Series A.
- Energy Impact Partners: Global climate/energy VC with utility LP base; overlaps with LongRun on energy-systems and built-environment portfolio companies (e.g., NODA-like AI optimization themes), though at much larger scale and later stages.
Others
- Atrium Ljungberg (portfolio parent): Nasdaq Stockholm-listed real estate company owned by the Ljungberg family; not a peer investor but functions as anchor LP, customer, and commercialization channel for LongRun's built-environment portfolio — directly relevant ecosystem counterparty.
Market position
Strengths4 records
Weaknesses5 records
Competitive moat3 records
Key risks6 records
Key highlights6 records
Customer concentration
LongRun Capital social profiles
Digital presenceLongRun Capital financial estimates
Financial estimateRevenue estimate
Valuation estimate
LongRun Capital leadership team
Management profileNumber of profiles
Profiles4 records
LongRun Capital funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
LongRun Capital M&A and investment
M&A and investmentM&A
Investments9 records
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about LongRun Capital
What does LongRun Capital do?
LongRun Capital is a venture capital firm that manages a SEK 300 million climate impact fund and invests seed-to-Series-A equity tickets (typically SEK 5-20 million for 10-20% ownership) in Nordic climate technology startups focused on advanced materials and energy solutions for the built environment. The firm pairs capital with active ownership, commercialization support, and follow-on financing through the Ljungberg family's real estate and construction network.
Is LongRun Capital a public or private company?
LongRun Capital is a private company. It is classified as family owned and is currently operating.
When was LongRun Capital founded?
LongRun Capital was founded in 2021. It employs 1 to 10 people.
Where is LongRun Capital based?
LongRun Capital is headquartered in Stockholm, Sweden, in the Europe region.
Who are LongRun Capital's main competitors?
Direct peers on record are Norrsken VC, Pale Blue Dot, Climentum Capital, 2150 (formerly Urban Future), Voima Ventures and ByFounders. Broad incumbents are Breakthrough Energy Ventures, Lowercarbon Capital and Energy Impact Partners. Atrium Ljungberg (portfolio parent) is listed as an others.
Does LongRun Capital have an API?
No public API is recorded for LongRun Capital.
What industry is LongRun Capital in?
LongRun Capital's product category is Climate Venture Capital / Impact Investment Management. Its primary akta.pro industry code is FSANAAAB, Early-Stage Venture Capital (Series A/B), with a secondary code of FSANACAG, Energy & Sustainability / Climate Growth Equity. Its NAICS code is 52394 and its SIC code is 6282.