# Top 50 Oil and Gas Startup Investors in United States in June 2026

## Houston Angel Network
- Type: VC Fund
- Location: Houston, Texas, United States
- Relevant deals: 8
- Stages: Seed, Series A
- Focus: Health Care, Software, Medical

The Houston Angel Network (HAN) is a nonprofit organization dedicated to developing the innovation ecosystem in Houston, Texas by supporting founders and startups with financial resources and mentorship.

## Evok Innovations
- Type: VC Fund
- Location: Vancouver, British Columbia, Canada
- Relevant deals: 7
- Stages: Series A, Seed, Series B
- Focus: Energy, Chemical, Oil and Gas

Founded in 2016, Evok Innovations is a fund that focuses on early-stage companies in the areas of Clean Energy, CleanTech, ClimateTech and CarbonTech.

## Rev1 Ventures
- Type: VC Fund
- Location: Columbus, Ohio, United States
- Relevant deals: 6
- Stages: Seed, Series A
- Focus: Software, Health Care, Information Technology

Rev1 Ventures provides seed stage venture capital funding in Columbus, Ohio along with startup services, space, mentoring, and connections. Learn more!

## RockPort Capital
- Type: VC Fund
- Location: Boston, Massachusetts, United States
- Relevant deals: 5
- Stages: Series C, Series B, Series A
- Focus: Energy, Manufacturing, Software

RockPort Capital is a multi-stage venture capital firm that invests in the areas of alternative and traditional energy, mobility, and sustainability. For more than a decade RockPort has partnered with entrepreneurs to foster growth and create value in a broad range of industrial and consumer facing companies whose technologies and products provideinnovative solutions to significant worldwide markets. RockPort has a collaborative approach to investing, deep domain expertise, and insights into all aspects of energy and cleantech. With offices in Boston and Menlo Park, RockPort is globally recognized as being among the largest and most established energy-focused venture capital firms.

## Cottonwood Technology Fund
- Type: VC Fund
- Location: Santa Fe, New Mexico, United States
- Relevant deals: 5
- Stages: Series A, Series B, Seed
- Focus: Manufacturing, Health Care, Biotechnology

Cottonwood Technology Fund is a venture capital firm that focuses on high-tech / deeptech investments. It focuses on investing in patent-based high-tech and hardware startups Sectors: robotics, photonics, optics, nanotech, sensor tech, telecom, automotive, cleantech, green energy, Medtech, chemicals, and advanced materials.The company wasfounded in 2010 and headquartered in New Mexico, United States.

## Chevron Technology Ventures
- Type: VC Fund
- Location: Houston, Texas, United States
- Relevant deals: 4
- Stages: Series A, Series B
- Focus: Energy, Software, Manufacturing

Chevron Technology Ventures champions innovation, commercialization and integration of emerging technologies within Chevron.

## Founders Fund
- Type: VC Fund
- Location: San Francisco, California, United States
- Relevant deals: 4
- Stages: Series A, Seed, Series B
- Focus: Software, Health Care, Information Technology

Founders Fund is a San Francisco based venture capital firm investing in companies building revolutionary technologies.

## Prelude Ventures
- Type: VC Fund
- Location: San Francisco, California, United States
- Relevant deals: 4
- Stages: Series A, Series B, Series C
- Focus: Software, Energy, Renewable Energy

Prelude Ventures invests in and supports early-stage startups with the greatest potential to mitigate climate change. For us, climate is everything.

## Element Partners
- Type: VC Fund
- Location: Radnor, Pennsylvania, United States
- Relevant deals: 4
- Stages: Series A, Series B
- Focus: Energy, Manufacturing, Renewable Energy

Element Partners invests exclusively in established high growth companies in the energy and clean technology markets. They specifically focus on companies with innovative solutions to global energy, resource, and environmental problems. Element strives to become a long-term partner with passionate business leaders who have built pioneeringcompanies. They have a long history of providing their companies with the financial resources, industry contacts, and strategic insights necessary to maximize growth and shareholder return.Since 1995, Element’s team has successfully managed over $1.2 billion in capital commitments spanning six investment partnerships. All of these partnerships have been focused on investing in and profitably growing energy, industrial, and environmental related businesses. Over the course of more than fourteen years, the principals of Element have collectively invested in over 100 clean technology companies making Element one of the earliest and most experienced alternative energy and clean technology investors.

## Altira Group
- Type: VC Fund
- Location: Denver, Colorado, United States
- Relevant deals: 4
- Stages: Series A, Series B
- Focus: Software, Energy, Renewable Energy

Altira provides venture capital funding for energy technology products and advantaged service offerings.

## Missouri Technology Corporation
- Type: VC Fund
- Location: Jefferson City, Missouri, United States
- Relevant deals: 3
- Stages: Seed, Grant
- Focus: Health Care, Biotechnology, Software

Missouri Technology Corporation is an American venture capital firm that promotes entrepreneurship and the growth of high-tech companies. Promoting entrepreneurship and fostering the growth of emerging, high-tech companies in Missouri

## TEDCO
- Type: VC Fund
- Location: Columbia, Maryland, United States
- Relevant deals: 3
- Stages: Seed, Grant, Pre-Seed
- Focus: Health Care, Software, Biotechnology

TEDCO is an independent organization that strives to be Maryland’s lead source for entrepreneurial business assistance and seed funding for the development of startup companies in Maryland’s innovation economy.

## Chrysalix Venture Capital
- Type: VC Fund
- Location: Vancouver, British Columbia, Canada
- Relevant deals: 3
- Stages: Series B, Series A
- Focus: Energy, Manufacturing, CleanTech

Leading global venture capital fund that invests in resource intensive industries across North America and Europe.

## Engine Ventures
- Type: VC Fund
- Location: Cambridge, Massachusetts, United States
- Relevant deals: 3
- Stages: Seed, Series A
- Focus: Biotechnology, Manufacturing, Medical

We invest in Tough Tech founders.

## Breakthrough Energy Ventures
- Type: VC Fund
- Location: Paris, Ile-de-France, France
- Relevant deals: 3
- Stages: Series A, Series B
- Focus: Energy, Renewable Energy, Manufacturing

Focused on developing and deploying the critical climate solutions our world needs to reach net-zero emissions by 2050.

## EnCap Flatrock Midstream
- Type: VC Fund
- Location: San Antonio, Texas, United States
- Relevant deals: 3
- Stages: Private Equity, Angel, Post-IPO Equity
- Focus: Energy, Oil and Gas, Logistics

EnCap Flatrock Midstream is a venture capital firm with a singular focus: identifying, investing in and enhancing the value of great businesses and attractive assets in the midstream sector of North America's oil and gas industry. Founded in 2008 by Flatrock Energy Advisors and EnCap Investments L.P., the firm is guided by a disciplined andpersistent approach to value creation through the rigorous application of intellectual and financial capital. The firm manages the EnCap Flatrock Midstream Funds I, II and III, which together have approximately $5.6 billion in institutional capital commitments from a broad range of prestigious institutional investors. EnCap Flatrock has more than $6.5 billion in total assets under management.

## Energy Impact Partners
- Type: VC Fund
- Location: New York, New York, United States
- Relevant deals: 3
- Stages: Series A, Series B, Series C
- Focus: Software, Energy, Renewable Energy

Energy Impact Partners LP (EIP) is a global venture capital firm leading the transition to a sustainable future. EIP brings together entrepreneurs and the world's most forward-looking energy and industrial companies to advance innovation. With over $2.5 billion in assets under management, EIP invests globally across venture, growth, credit,and infrastructure.

## Good Growth Capital
- Type: VC Fund
- Location: Charleston, South Carolina, United States
- Relevant deals: 3
- Stages: Seed, Series A, Convertible Note
- Focus: Health Care, Biotechnology, Software

Good Growth Capital is an early-stage venture capital firm known for its expertise in finding, assessing and cultivating complex science and technology.

## Sun Mountain Capital
- Type: VC Fund
- Location: Santa Fe, New Mexico, United States
- Relevant deals: 3
- Stages: Series A, Series B, Series C
- Focus: Medical, Health Care, Biotechnology

Sun Mountain Capital is an asset management firm specializing in venture capital and private credit through direct and multi-manager investments.

## MassVentures
- Type: VC Fund
- Location: Boston, Massachusetts, United States
- Relevant deals: 3
- Stages: Grant, Seed, Series A
- Focus: Health Care, Software, Manufacturing

MassVentures is a venture capital firm focused on catalyzing the Massachusetts innovation economy by funding and supporting seed-stage, deep tech startups as they move from concept to commercialization.

## Cofounders Capital
- Type: VC Fund
- Location: Cary, North Carolina, United States
- Relevant deals: 3
- Stages: Seed, Series A
- Focus: Software, SaaS, Information Technology

Venture Capital fund focused on seed stage B2B software companies in the Southeast

## North Bridge Venture Partners & Growth Equity
- Type: VC Fund
- Location: Wellesley, Massachusetts, United States
- Relevant deals: 3
- Stages: Series B, Series C
- Focus: Software, Enterprise Software, SaaS

North Bridge provides seed-to-growth stage funding for businesses in several sectors such as software, communications and infrastructure, digital media, healthcare, and material production.North Bridge Venture Partners invests in exceptional people whose ideas have the potential to disrupt the way they live and work. They provide seed-to-growthfinancing to help transform those ideas into companies and those companies into market leaders.

## Breakout Ventures
- Type: VC Fund
- Location: San Francisco, California, United States
- Relevant deals: 3
- Stages: Seed, Series B, Series A
- Focus: Biotechnology, Life Science, Therapeutics

Building the Future Powered by Science

## Trilantic North America
- Type: VC Fund
- Location: New York, New York, United States
- Relevant deals: 3
- Stages: Private Equity, Seed
- Focus: Energy, Oil and Gas, Manufacturing

Trilantic North America is a private equity firm focused on control and significant minority investments in North America. Trilantic North America's primary investment focus is in the business services, consumer, and energy sectors.

## Asymmetry Ventures
- Type: VC Fund
- Location: San Francisco, California, United States
- Relevant deals: 3
- Stages: Seed, Series A, Pre-Seed
- Focus: Software, Health Care, Biotechnology

Asymmetry Ventures invests in scalable early-stage companies with exceptional defensibility.

## Mercury
- Type: VC Fund
- Location: Houston, Texas, United States
- Relevant deals: 3
- Stages: Series A, Seed, Series B
- Focus: Software, SaaS, Health Care

Mercury is an early-stage venture capital platform that seeks out transformative software startups, led by exceptional founders, in communities across America. To date, Mercury has created over $9 billion of value with an operationally-focused venture investment strategy helping startups achieve rapid, sustainable growth. Mercury partners withfirst-time entrepreneurs who require support and guidance, as well as seasoned founders seeking to leverage the assets and talent of our growth partner network.

## Equinor Technology Ventures
- Type: VC Fund
- Location: Stavanger, Rogaland, Norway
- Relevant deals: 3
- Stages: Series B, Series A
- Focus: Oil and Gas, Energy, Software

Equinor is an energy company that is engaged in the exploration, development, and production of oil and gas, as well as wind and solar power. It also sells crude oil and is a major supplier of natural gas, with activities in processing, refining, and trading. Its activities are managed through eight business areas, staff and support divisions, andhas operations in North and South America, Africa, Asia, Europe and Oceania, and Norway.

## Prototype Capital
- Type: VC Fund
- Location: Los Angeles, California, United States
- Relevant deals: 3
- Stages: Seed, Pre-Seed
- Focus: Robotics, Artificial Intelligence, Health Care

At Prototype Capital, we're on a mission to help young ambitious founders around the country build lasting 100-year businesses around products that change the status quo by 10x.

## Javelin Venture Partners
- Type: VC Fund
- Location: San Francisco, California, United States
- Relevant deals: 3
- Stages: Series A, Seed, Series B
- Focus: Software, E-Commerce, Enterprise Software

Javelin Venture Partners invests in early-stage tech companies with incredible potential, managed by teams of energetic, trustworthy, and capable leaders. Javelin looks for advanced bleeding-edge innovations, where the addressable market size is substantial, and strong competitive advantages exist. A typical investment is between $1 to $6million, with reserves for follow-on investments. In addition, Javelin also considers smaller seed investments for unique companies just getting started. Located in downtown San Francisco, while invests throughout the world. Javelin is a very active investor with a long-term outlook and the objective of creating substantial value.

## Eni Next
- Type: VC Fund
- Location: Rome, Lazio, Italy
- Relevant deals: 2
- Stages: Series A, Series B
- Focus: Energy, Environmental Engineering, Renewable Energy

Eni Next has been recently established as the venture capital arm of Eni Group. It aims to be a key role in Eni's open innovation strategy towards energy transition through investing in startups with disruptive technologies. Its focus investment areas include Clean-Tech, Industrials, Digital technologies, Magnetic Fusion, and others.

## AAF Management Ltd.
- Type: VC Fund
- Location: Arlington, Virginia, United States
- Relevant deals: 2
- Stages: Seed, Series A
- Focus: Software, FinTech, Financial Services

Leading early-stage venture capital firm focused on pre-Seed, Seed and Series A stage technology companies in North America.

## Portland Seed Fund
- Type: VC Fund
- Location: Portland, Oregon, United States
- Relevant deals: 2
- Stages: Seed, Series A
- Focus: Software, SaaS, Enterprise Software

The Portland Seed Fund invest in pre-seed and seed-stage companies across the Pacific Northwest. The majority of investments are in Oregon, with 10-20% of investments in other parts of the Northwest. Typical initial investment size of $50,000-$100,000 with participation in multiple follow on rounds. Sector agnostic - the largest sector is B2Bsoftware / SaaS with investments in data center infrastructure, AR/VR, health care IT, direct-to-consumer, e-commerce, mobile, cleantech, food, and apparel. 10-20 investments per year. Now investing out of third fund with more than $20 million AUM. Since 20011 PSF has invested $8 million in more than 90 companies who have gone on to raise more than $370 million from other sources. More than half of PSF companies have a female or person of color on the founding team, and more than a third have a female CEO.

## SOSV
- Type: VC Fund
- Location: Princeton, New Jersey, United States
- Relevant deals: 2
- Stages: Seed, Convertible Note, Pre-Seed
- Focus: Biotechnology, Health Care, Software

SOSV is a global, deep tech venture capital firm that operates the HAX and IndieBio startup development programs focused on human and planetary health. SOSV invests $500,000 in startups at their inception as they onboard either HAX or IndieBio for a 4-6 month period designed to accelerate the raise of their next institutional round. SOSV joins thelater rounds of HAX and IndieBio graduates.
HAX, based in a 35,000 sq ft facility in Newark, NJ, is equipped with machine tools, 3D printers, chemical, electrical and mechanical engineering labs, as well as on-staff engineering and design experts. SOSV's IndieBio has locations in NYC and San Francisco, both of which offer extensive services and facilities to founders including on-site BSL-2 labs, well equipped lab benches and hoods, and advanced lab equipment, such as chromatography equipment.

## Stanley Ventures
- Type: VC Fund
- Location: Atlanta, Georgia, United States
- Relevant deals: 2
- Stages: Seed, Series A
- Focus: Manufacturing, Robotics, Physical Security

Stanley Ventures invests in innovative startups and provides industry expertise, supplier relationships, and access to customers. The firm is the corporate venture capital arm of Stanley Black & Decker. It was established in 2016 and is based in Atlanta, Georgia, United States.

## AP Ventures
- Type: VC Fund
- Location: London, England, United Kingdom
- Relevant deals: 2
- Stages: Series A, Seed
- Focus: Energy, Renewable Energy, Manufacturing

AP Ventures invests in pioneering technologies and businesses that harness the unique chemical and physical properties of Platinum Group Metals to solve global challenges.AP Ventures is led by a specialist investment team with proven expertise and a successful track record. We offer investors access to high growth technologies that are developingsolutions to solve global issues.

## Third Sphere
- Type: VC Fund
- Location: Brooklyn, New York, United States
- Relevant deals: 2
- Stages: Seed, Pre-Seed, Convertible Note
- Focus: Software, Real Estate, Transportation

Early-stage fund focused on rapid, scalable climate action and targeting outsized impact and outsized returns.

## Rising Tide
- Type: VC Fund
- Location: Menlo Park, California, United States
- Relevant deals: 2
- Stages: Seed, Series A
- Focus: Software, Artificial Intelligence, Biotechnology

Rising Tide their technological advancements in big data analytics, computer-aided design, optical sensors, mobile applications in vertical markets, community-connected networks, and services.

## The Yield Lab
- Type: VC Fund
- Location: St Louis, Missouri, United States
- Relevant deals: 2
- Stages: Seed, Series A, Convertible Note
- Focus: Agriculture, AgTech, Biotechnology

The Yield Lab invests in AgriFood Tech companies with technologies focused on crops, animal health, digital agriculture, logistics, and food ingredients. Initial investments range from $100,000 – $1.5M.

## WI Ventures, LLC
- Type: VC Fund
- Relevant deals: 2
- Stages: Seed
- Focus: Energy, Oil and Gas, Transportation

Venture Arm for Worthington Industries

## ATP Fund
- Type: VC Fund
- Location: Austin, Texas, United States
- Relevant deals: 2
- Stages: Seed, Series A
- Focus: Health Care, Analytics, Machine Learning

We partner with scientific visionaries to solve humanities grand challenges for a brighter future

## Donald R. Kendall
- Type: Angel
- Location: Houston, Texas, United States
- Relevant deals: 2
- Stages: Series A
- Focus: Analytics, Real Time, Oil and Gas

Donald R. Kendall - MD & CEO @ Kenmont Solutions Capital

## TotalEnergies Ventures
- Type: VC Fund
- Location: La Défense, Ile-de-France, France
- Relevant deals: 2
- Stages: Series B, Series C
- Focus: Energy, Renewable Energy, Transportation

TotalEnergies Ventures is the venture capital arm of Total.As part of Total's commitment to a better energy future, TotalEnergies Ventures is focused on finding, funding and fostering high-potential start-ups which will contribute to creating a low carbon future.Current areas of interest include Renewables, Distributed Energy, NewMobility, Energy Access, Energy Storage, Bio-Plastics, Circular Economy, Carbon Capture and Hydrogen.

## Momenta
- Type: VC Fund
- Location: Engelberg, Obwalden, Switzerland
- Relevant deals: 2
- Stages: Seed, Series A, Series B
- Focus: Software, Artificial Intelligence, Internet of Things

Momenta is the leading Industrial Impact® venture capital firm, accelerating industrial innovators across energy, manufacturing, smart spaces, and the supply chain. For over a decade, our team of deep industry operators has helped scale industry leaders and innovators to improve critical industries, the environment, and people's quality oflife. PitchBook has ranked Momenta as one of the ten best-performing venture capital firms for 2023 in its prestigious Global Manager Performance Score League Tables, and the firm is the only European-headquartered VC to secure a Top 10 spot on the list.

## Siemens
- Type: VC Fund
- Location: Munich, Bayern, Germany
- Relevant deals: 2
- Stages: Series A, Debt Financing
- Focus: Renewable Energy, Energy, Electric Vehicle

Discover Siemens as a strong partner, technological pioneer and responsible employer.

## Montrose Lane
- Type: VC Fund
- Location: Houston, Texas, United States
- Relevant deals: 2
- Stages: Series A, Series B
- Focus: Software, Oil and Gas, Energy

Montrose Lane, formerly known as Cottonwood Venture Partners, is an investment firm partnering with leading software companies that help to make energy affordable, safe, and environmentally friendly.

## Second Avenue Partners
- Type: VC Fund
- Location: Seattle, Washington, United States
- Relevant deals: 2
- Stages: Series A, Series B, Series C
- Focus: E-Commerce, Software, SaaS

Second Avenue Partners provide management, strategy and capital for early stage companies. The following companies are in their portfolio...
-Rubicon Interactive
-Sports Technologies Inc.
-Ice Energy
-Newsvine
-Azaleos
-You Software
-Revenue Science
-Insitu Group
-Bocada
-HouseValues.com
-WaveMarket
-Terabeam
-Essention

## Energy Innovation Capital
- Type: VC Fund
- Location: San Francisco, California, United States
- Relevant deals: 2
- Stages: Series B, Series A
- Focus: Energy, Manufacturing, Oil and Gas

Energy Innovation Capital is the premier capital provider for innovators serving the energy industry. EIC provides early and growth-stage funding for visionary entrepreneurs tackling global energy challenges with transformative, market-leading solutions. EIC's team leverages its industry expertise, networks and collaborative approach to helptalented entrepreneurs push the boundaries of what's possible and build great companies. To learn more, visit www.energyinnovationcapital.com.

## GE Ventures
- Type: VC Fund
- Location: Menlo Park, California, United States
- Relevant deals: 2
- Stages: Series B, Series A, Series C
- Focus: Health Care, Software, Enterprise Software

GE Ventures combines capital, technical, and commercial services. They invest in the healthcare and life sciences, energy and mobility, manufacturing and supply chain, enterprise productivity applications, digital infrastructure, and frontier technologies sectors.

## Birchmere Ventures
- Type: VC Fund
- Location: Pittsburgh, Pennsylvania, United States
- Relevant deals: 2
- Stages: Seed, Series B, Series A
- Focus: Software, Health Care, Internet

Across five funds and two decades, we've helped build numerous successful companies such as Cvent (event management - IPO) , TenMarks (math tutoring - acquired by Amazon) CyOptics (optical chips - acquired by Avago), Neolinear (EDA - acquired by Cadence), and FreeMarkets (B2B marketplace - IPO).We believe great companies can start anywhere(but to scale quickly they may require a coastal presence), and the best engineers and scientists do not go to just a few schools on each coast.  These core principles lead us to invest in companies from across the country overlooked by many other investors, uncovering hidden gems and helping them scale up.

## Allied Minds
- Type: VC Fund
- Location: Boston, Massachusetts, United States
- Relevant deals: 2
- Stages: Series A, Seed, Series B
- Focus: Software, Wireless, Aerospace

Allied Minds (LSE: ALM) is an early stage investor in technology and life sciences companies underpinned by US scientific innovation.

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