Organization · Private Equity
Haddington Ventures
Haddington Ventures is a Houston-based investment firm specializing in mid-market private equity and infrastructure equity, focusing on conventional and renewable energy projects. The firm partners with entrepreneurial management teams to develop energy infrastructure in the U.S.
Overview
What Haddington Ventures does
What Haddington Ventures is
Haddington Ventures is a Houston-based investment firm specializing in mid-market private equity and infrastructure equity, focusing on conventional and renewable energy projects. The firm partners with entrepreneurial management teams to develop energy infrastructure in the U.S.
How it participates in the startup ecosystem
The current public profile supports funder capabilities. Each capability below is shown separately so organization identity and role-specific information do not get conflated.
Operational profile
Organization status and context
Organization status describes the entity itself. Funding and program availability appear within the relevant capability profile.
- Operational status
- Active
- Organization type
- Private Equity
- Founded
- Founded in 1998
- Approximate age
- About 28 years
- Structured capabilities
- Funder
- Last reviewed
- April 23, 2026
Official channels
Find Haddington Ventures elsewhere
Open the official website or a supported primary organization account.
Capability profile
Haddington Ventures as a funder
Investment thesis
Haddington Ventures focuses on investing in energy infrastructure, both conventional and renewable, with an emphasis on midstream assets and energy storage solutions. They partner with entrepreneurial management teams to develop and grow innovative energy projects.
Focus narrative
Haddington Ventures invests in energy projects, particularly in energy hubs that enhance efficiency and reliability by co-locating production, storage, and demand. Their investment areas include natural gas storage, hydrogen production and storage, and compressed air energy storage (CAES). The firm seeks to partner with entrepreneurial businesses that have management teams capable of developing and growing energy projects.
Value beyond capital
Haddington Ventures adds value to its portfolio companies by leveraging its extensive industry expertise and network in the energy sector. The firm partners with management teams to provide strategic guidance and support in the development and growth of energy projects, ensuring alignment with market demands and regulatory frameworks.
Terms and economics
- Typical check
- $1,000,000–$650,000,000
- Sweet spot
- $50,000,000
Focus and fit
- Stages
- Friends and Family · Angel · Accelerator · Pre-seed · Seed · Seed+ · Series A · Series A+ · Series B · Series B+ · Series C · Series C+ · Series D · Series E · Series F · Growth Equity
- Regions
- North America
Availability
- Currently deploying
- Yes
Portfolio and track record
- Recorded portfolio count
- 9
Portfolio context
Notable portfolio companies include: Magnum Development: Involved in energy storage solutions. Sawtooth Caverns: Focuses on NGL refined product storage. Advanced Clean Energy Storage (ACES Delta): Engaged in green hydrogen production and storage. Eureka Resources: Operates a gas well water treatment facility. IACX LLC: Engaged in various energy-related projects. Bobcat Storage: Provides storage solutions in the energy sector. Sago Energy: Involved in energy production and storage. Gulf Coast LNG: Focuses on liquefied natural gas storage. Lodi Gas Storage: Provides gas storage solutions.
Common questions
What to know about Haddington Ventures
Upseed classifies Haddington Ventures under the Private Equity organization type. Its current public profile includes funder capabilities.
Source and update disclosure
Know what this page is based on
Source basis
Public organization and program material, official websites, and structured Upseed records.
Last reviewed
April 23, 2026
Known limits
Capability profiles appear only when a structured public profile also contains decision-useful role evidence. Terms and availability can change.
Upseed is an independent guide. It is not affiliated with or endorsed by the organization described on this page.