Spring Lane Capital
Impact investorMontreal · Growth–Late Stage · 22 people tracked
Also known as SPRING LANE MANAGEMENT, LLC
Investment thesis
Spring Lane Capital focuses on sustainable real assets in the so-called 'missing middle,' backing platforms with a combination of project finance and corporate equity. The firm emphasizes fewer, deeper partner relationships built on trust and alignment, and works alongside management teams that share its growth mindset. Drawing on decades of development, operations, and finance experience, the team positions itself as builders and operators rather than purely financial investors, providing hands-on support to scale companies whose projects create long-term value. It targets sectors where decentralized, low-carbon assets are scaling quickly, including distributed energy, waste-to-value/circular economy, sustainable transportation and mobility, and intelligent agriculture and food systems.
Source: firm website, verified Aug 25, 2026.
Team · 22 people
from the firm's website & curatedWhat they invest in
from 10 of 14 portfolio companiesCleantech ×7Energy ×6Circular Economy ×3Climate Tech ×3AI & Machine Learning ×2Advanced Manufacturing ×1AgTech ×1Cloud Computing ×1
HQs:United States×8
Investments · 14 tracked
founders shown can be your intro pathBy year:2026 · 12025 · 12024 · 13 dated
Soluna builds data centers co-located with wind, solar, and hydro plants to convert surplus renewable energy into computing capacity for AI and Bitcoin mining, managed by its MaestroOS software.
CleantechCloud ComputingCrypto & Web3EnergyNew York, US
John Belizare(Executive Officer, Director)Matthew Lipman(Director)Bill Phelan(Director)
Co-investorsGenerate Capital
DevEngine provides development-stage capital and hands-on project development support to sustainable infrastructure and clean energy developers, co-investing at the ProjectCo level.
CleantechClimate TechEnergy
Co-investorsGenerate Capital
EnergyLaconia, US
Miles Walker(Managing Director)
BoardNikhil Garg(Director)inJustin Hines(Director)
Aries Clean Technologies develops waste conversion and gasification technology for processing materials such as biosolids and sludge into cleaner outputs.
Circular EconomyCleantechClimate Tech
Kari Mueller(Chief Executive Officer)
Atlas Organics collects and recycles organic waste from homes and businesses into compost and soil amendment products for landscapers, farmers, nurseries, and home growers, and helps municipalities set up composting facilities.
AgTechCircular EconomyCleantechSpartanburg, US
Joseph McMillin(Founder)Joseph B McMillin(CEO)
Co-investorsTamiami AngelVentureSouthGratitude Railroad
CleantechBoston, US
Matthew Silver(Executive Officer, Director)Bruce Smith(Executive Officer)Justin Buck(Executive Officer, Director)
BoardJoseph Caruso(Director)
Co-investorsPennybacker
CleanFiber manufactures cellulose-based insulation from recycled newsprint for the building materials industry.
Advanced ManufacturingCircular EconomyCleantechConstruction TechNew MaterialsBuffalo, US
Sami Rahman(CEO)Erik Gregory(Chief Financial Officer)Jonathan Strimling(Executive Officer)James Austin(Executive Officer)Marco Peterson(Executive Officer, Director)
BoardNoah Lerner(Director)in
Co-investorsAligned Climate CapitalBoston Harbor AngelsClean Energy VentureClimate Innovation CapitalGlobal BrainKeiretsu Forum+6 more
San Francisco, US
Sunil Paul(Executive Officer, Director, Promoter)
BoardMartin Lagod(Director)Robert Day(Director)in
Co-investorsBrainstorm VenturesCity Light
Zanskar develops geothermal energy projects using AI and advanced geoscience to map subsurface resources and deliver utility-scale, carbon-free power.
AI & Machine LearningDeep TechEnergy
Carl Hoiland(Founder & CEO)inJoel Edwards(Founder)
Co-investorsAzolla VenturesClearvision VenturesFirst Star VenturesGVP ClimateLOWERCARBONLowercarbon Capital+6 more
Zanskar uses geoscience, AI, and advanced drilling methods to map the Earth's subsurface and identify geothermal resources that have been overlooked or considered too risky.
AI & Machine LearningClimate TechEnergy
Carl Hoiland(Founder)inJoel Edwards(Founder)in
Co-investorsAzolla VenturesPrime Impact FundSafar PartnersBessemer Venture PartnersFirst Star VenturesLowercarbon Capital+3 more
Exits · 1
IPOs and acquisitions across the tracked portfolioSolunaNASDAQ: SLNH
Portfolio news
latest coverage across their companiesZanskar · x.com · Aug 6, 2026
Soluna · finance.yahoo.com · Jul 29, 2026

CleanFiber · businesswest.com · Jun 19, 2026
Aries Clean Technologies · wastedive.com · May 21, 2026
Zanskar · ipoplatform.com · Apr 7, 2026
DevEngine · geothermalcanada.org · Dec 2, 2025
Spring Free EV · newswire.com · Sep 19, 2025
Cambrian Innovation · prnewswire.com · Sep 17, 2025
Frequently asked questions
- How many investments has Spring Lane Capital made?
- Spring Lane Capital has 13 tracked investments, including 1 dated in the last 24 months.
- What stage does Spring Lane Capital invest at?
- Spring Lane Capital invests at the Growth, Late Stage stages.
- What sectors does Spring Lane Capital focus on?
- Spring Lane Capital focuses on AgTech, Circular Economy, Cleantech, Climate Tech, Energy, FoodTech, Impact & Social Good, Mobility & Transportation.
- Where is Spring Lane Capital located?
- Spring Lane Capital is headquartered in Montreal, CA.
- Does Spring Lane Capital lead rounds?
- Yes, Spring Lane Capital leads investment rounds.
- Who does Spring Lane Capital co-invest with?
- Spring Lane Capital most often shares deals with Global Brain, Lowercarbon Capital, Obvious Ventures, among 25 tracked co-investors.
Media · Podcasts & interviews
featuring the teamRob Day | Co-Founder, Spring Lane Capital
ZNRG - The ZENERGY Podcast · Rob Day
#153 Rob Day, Partner and Co-Founder of Spring Lane Capital
Nexus PMG · Rob Day
Similar investors
Emerald Technology Ventures is a venture capital investor focused on complex, cutting-edge technologies, supporting entrepreneurs at the frontier of scientific and industrial innovation.
The Ecosystem Integrity Fund (EIF) is an early growth stage venture capital fund investing in companies that contribute to environmental sustainability.
2050 is a mission-driven investment fund that backs founders building companies in the transition toward a sustainable economy, with an emphasis on aligning economic development with the interests of people, society and the planet.
GET Fund is an impact venture capital investor backing Green European Tech startups building scalable, sustainable businesses from early to growth stage.
Nordic Alpha Partners is a greentech-focused investment firm backing pioneering market-leading companies across six sustainable greentech investment areas.























