Fundraising Fox

LongRun Capital

Venture capital

Stockholm · Seed–Series A · 4 people tracked

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Investment thesis

Longrun invests in scalable innovations across the built environment value chain to address climate change, particularly in advanced materials and energy technologies that can decarbonize construction and real estate—sectors responsible for 37 percent of global carbon emissions. The firm combines deep climate research expertise with patient capital, active ownership, and a long-term investment horizon to help portfolio companies commercialize innovations and achieve measurable climate impact. A commitment to diversity and inclusion across portfolio companies is integral to the investment thesis.

Source: firm website, verified Jul 21, 2026.

Stage
Seed–Series A
Check
$625K – $2.5M
HQ
Stockholm, SE
Instruments
Equity
Founded
2021
Tracked investments
7

Team · 4 people

from the firm's website
Johan Frenckner· Founding Partnerin

An experienced venture capital and private equity investor with over 20 years in the industry. He has participated in more than 30 investments across multiple sectors and company stages, with a background in corporate finance and entrepreneurship.

Matilda Knuts· Senior Investment Partnerin

An investment professional who joined Longrun Capital in 2022 with 7 years of investment banking experience. Most recently served as Vice President at Barclays covering the Nordic region, and previously worked at Nordea's Investment Banking division focusing on M&A and IPOs.

Cristina Ljungberg· Investment Committee Memberin

A healthcare and business strategist with nearly two decades of philanthropic experience. Co-founder of The Case for Her, founding member of the Maverick Collective, and board member of Acumen, a non-profit venture capital firm.

Tom Ljungberg· Investment Committee Member

An investor and board member operationally engaged with Tagehus Holding. He has been part of the investment committee since Longrun's inception and contributed to building the firm's early portfolio focused on clean digitalization.

Investments · 7 tracked

founders shown can be your intro path
3eflow3eflow.com

Develops smart tap water systems that reduce energy consumption by 50%, prevent Legionella bacteria growth, and provide rapid hot water delivery.

Druppsdrupps.comin

Makes businesses realize the potential in airborne water to reduce water needs and increase climate change resilience.

Ekolutionekolution.se

Develops carbon-negative building materials, including hemp-based insulation and prefabricated panels, for sustainable and energy-efficient construction.

Greenirongreeniron.sein
Nodanoda.sein
NODA Intelligent Systems

Optimizes energy systems through innovative artificial intelligence software within the energy sector.

Nsswaternsswater.comin

Frequently asked questions

What stage does LongRun Capital invest at?
LongRun Capital invests at the Seed, Series A stages.
What is LongRun Capital's typical check size?
LongRun Capital typically writes checks of $625K – $2.5M.
What sectors does LongRun Capital focus on?
LongRun Capital focuses on Climate Tech, Construction Tech, Energy, New Materials.
Where is LongRun Capital located?
LongRun Capital is headquartered in Stockholm, SE.

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