Long Run Capital III, LP
RaisingEmerging manager
Raising: Form D filed Apr 2026 reports an open-ended (indefinite) offering
- Vintage
- 2026
- Fund size
- $21.92M (Form D)
- Stages
- Seed, Series A
- Sectors
- Advanced materials, Energy
- Regions
- Not stated
01 · Thesis
Longrun Capital invests in early-stage climate tech companies focused on advanced materials and energy for the built environment, aiming to reduce carbon emissions in construction and real estate.Inferred from the firm's website
02 · Initial check
$219K to $365K (estimated from fund size)
Estimated from Form D
03 · Who to approach
Named on this fund's Form D
- Daniel Maren, Managing Member of the General Partner and Investment Manager
- Wilson Patton, Managing Member of the General Partner and Investment Manager
04 · Deals
No deals attributed to this fund yet.
05 · Evidence
Firm-wideLongrun invests in climate tech innovations for the built environment, focusing on early-stage advanced materials and energy companies.
We strive to be the first choice for innovators who bring groundbreaking technical solutions related to the built environment to address the climate crisis
https://www.longruncapital.com/
06 · Sources
Last verified: Oct 28, 2026