About Flathead Forge
Flathead Forge is an accelerator and incubator program based in Houston, United States. With a presence in 2 countries, it has supported around 9 startups in sectors like Energy Tech, Environment Tech. Most notable companies in
its portfolio include NALA, Altillion and Inception Oilfield. The program primarily supports Seed startups based in United States. Its latest investment was a Undisclosed Series A round in NALA on Jul 06, 2026.
Key Metrics
Location
Houston, United States
Sectors of Investment
Stages of Investment
Seed & Series A
Locations of Investment
Flathead Forge's List of Top Investments
Flathead Forge has a portfolio of 9 companies. Their most notable investmentis in AltillionTheir portfolio spans across United States and Colombia. They have invested in Energy Tech, Environment Tech, Enterprise Applications and 4 other sectors, across stages such as Seed, Series A stages. Here is the list of top investments by Flathead Forge:
1. NALA
Developer of chlorine-resistant reverse osmosis membranes for water treatment. These membranes reduce biofouling, lowering operating costs and extending membrane lifespan. The technology enables efficient water reuse and reduces the environmental impact of water treatment systems. This is achieved through patented materials resistant to chlorine, allowing for effective cleaning without membrane damage. The result is lower energy consumption and reduced maintenance needs for water purification systems.
Key facts about NALA
- Founded Year: 2018
- Location: Durham (United States)
- Stage: Series A
- Total Funding till date: $12.2M
- Employee Count: 21 as on Aug 31, 2026
- Investors: Good Growth Capital, MassChallenge and 3 Others
- Latest Funding Round: Series A, Jul 06, 2026, $*****
- Highlight: Editors' Pick
2. Altillion
Technology innovator developing proprietary mineral extraction process from brine. It has developed a proprietary mineral extraction process from brine resources. The companys technology enables the commercialization of lithium and other minerals from brine sources through its liquid-liquid technology.
Key facts about Altillion
- Founded Year: 2023
- Location: Houston (United States)
- Stage: Seed
- Total Funding till date: $5M
- Employee Count: 5 as on Aug 31, 2026
- Investors: EIC Rose Rock and Flathead Forge
- Latest Funding Round: Seed, Mar 24, 2026, $*****
- Highlight: Editors' Pick
Provider of oil and gas market products and solutions. It offers innovative, cost-effective, and high-quality products and solutions within select oil and gas markets. The focus is on providing effective and efficient tools and technologies to meet the needs of this industry sector. This includes a commitment to delivering reliable and dependable products that contribute to the success of its clients' operations.
Key facts about Inception Oilfield
- Founded Year: 2010
- Location: Calgary (Canada)
- Stage: Funding Raised
- Investors: Flathead Forge
4. Sulfx
Provider of H2S gas removal technology. It uses "150 Proof" technology solution to reduce chemical consumption and for H2S gas removal.
Key facts about Sulfx
- Founded Year: 2023
- Location: The Woodlands (United States)
- Stage: Funding Raised
- Investors: Flathead Forge
5. Prodigy
Technology solution for water, solids, and gas treatment. It helps in reducing methane emissions, increasing water recycling rates, and reducing total waste volumes. It also provides an intelligent fleet and OS for process technology.
Key facts about Prodigy
- Founded Year: 2020
- Location: Conroe (United States)
- Stage: Funding Raised
- Investors: Flathead Forge
Flathead Forge's Year-on-Year Investment Trends
As of Jul 2026, it has made 2 investments in this year. Its most recent first time investment was in NALA.Flathead Forge's Investments by Stage
Flathead Forge has made 1 investment in Seed stage with an average round size of $5M and 1 investment in Series A stage.Flathead Forge's Investments by Sector
Flathead Forge has a diverse portfolio, with companies operating in the Enterprise Applications, Environment Tech, Mining and Sustainability Tech. Notably, it has invested in 6 Enterprise (B2B) companies, 5 Tech companies, 1 Software company and 1 company focusing on Tech hardware.Sector | No. of Investments |
|---|---|
Enterprise Applications | 1 |
Environment Tech | 1 |
Mining | 1 |
Sustainability Tech | 1 |
Note: We have considered here, only first round of investments
Flathead Forge's Investments by Geography
Flathead Forge has made most investments in United States (2).Flathead Forge's recent investments
Flathead Forge has made 2 investments in 2026 so far - NALA and Altillion.Here are the most recent investments by Flathead Forge:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Jul 06, 2026 | United States | Series A | 6936 | - | |
Mar 24, 2026 | United States | Seed | 4846 |
Co-investors of Flathead Forge
Over the past year, 5 investors have co-invested in Flathead Forge's portfolio companies. This includes only funds.
- Invested before Flathead Forge: Oval Park Capital, National Science Foundation and 2 others have invested in rounds before Flathead Forge. There is 1 company where Oval Park Capital has invested before Flathead Forge and 1 company where National Science Foundation has invested before Flathead Forge.
- Top Co-investors of Flathead Forge: EIC Rose Rock entered a company along with Flathead Forge.
Recent News related to Flathead Forge
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ONGC to spend over ₹30,000 crore this year, partners with BP to boost oil and gas production from aging fieldsCNBC-TV18•Aug 31, 2026•BP Ventures, ONGC, Flathead Forge, LNTECC
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Flathead Forge Invests in Capwell to Turn Vent or Flare Gas into RevenueGlobeNewswire•Jul 21, 2026•Flathead Forge, Capwell
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NALA Membranes Receives Investment from Flathead Forge Fund 1Massinvestor•Jul 07, 2026•Flathead Forge, NALA
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