# US Department of Energy's Manufacturing Investments: 17 Startups in Its Portfolio (2026) > The 17 Manufacturing startups US Department of Energy has backed, by stage: $2.6B raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/u-s-department-of-energy-manufacturing-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Stage not reported 15 - [LongPath Technologies](https://millionrounds.com/company/longpath-technologies) - [ElementUSA](https://millionrounds.com/company/elementusa) - [Guru](https://millionrounds.com/company/guru) - [Materic](https://millionrounds.com/company/materic) - [High Temperature Superconductors](https://millionrounds.com/company/high-temperature-superconductors) - [PowerTech Water](https://millionrounds.com/company/powertech-water) - [Leiden Measurement Technology](https://millionrounds.com/company/leiden-measurement-technology) - [Creekside Environmental Products](https://millionrounds.com/company/creekside-environmental-products) - [Willamette Technical Fabricators](https://millionrounds.com/company/willamette-technical-fabricators) - [*N* NextSeal](https://millionrounds.com/company/nextseal) - [StorEdgeAI](https://millionrounds.com/company/storedgeai) - [Nikira Labs](https://millionrounds.com/company/nikira-labs) - [Rockytech](https://millionrounds.com/company/rockytech) - [Recon-RF](https://millionrounds.com/company/recon-rf) - [GlycoSurf, Inc.](https://millionrounds.com/company/glycosurf-inc) ## Growth 2 - [Re:Build](https://millionrounds.com/company/re-build) - [Silfab Solar](https://millionrounds.com/company/silfab-solar) ## Segment by segment ### Stage not reported 15 startups · $354M raised - [**LongPath Technologies**](https://millionrounds.com/company/longpath-technologies) LongPath Technologies provides continuous emissions monitoring solutions across the oil and gas supply chain. United States $162M - [**ElementUSA**](https://millionrounds.com/company/elementusa) ElementUSA is a mining firm that produces critical materials from mineral and metallic waste for products. United States $97M - [**Guru**](https://millionrounds.com/company/guru) Guru is an Enterprise AI Search, Intranet, and Wiki platform allowing you to find and share information from anywhere to anywhere. United States $71M - [**Materic**](https://millionrounds.com/company/materic) Materic provides designs and manufactures advanced materials and electrospinning, nanoparticle separation, textile treatments. United States $10M - [**High Temperature Superconductors**](https://millionrounds.com/company/high-temperature-superconductors) HTSI goal is to construct manufacturing facility for high-volume production of ReBCO HTS wire to satisfy the demands of fusion customers. United States $5.0M - [**PowerTech Water**](https://millionrounds.com/company/powertech-water) PowerTech Water is a wastewater solution company that offers a chemical-free water treatment platform. United States $2.8M - [**Leiden Measurement Technology**](https://millionrounds.com/company/leiden-measurement-technology) LMT is a research and development company specializing in developing high-end scientific instrumentation. United States $1.6M - [**Creekside Environmental Products**](https://millionrounds.com/company/creekside-environmental-products) Creekside Environmental Products manufactures environmentally friendly solutions including food, beverage, and personal care. United States $1.1M ### Growth 2 startups · $2.3B raised - [**Re:Build**](https://millionrounds.com/company/re-build) Re:Build is to create the world where we can help each other. United States $2.2B - [**Silfab Solar**](https://millionrounds.com/company/silfab-solar) Silfab Solar is a North American photovoltaic (PV) module manufacturing company. Canada $50M **How this map is made.** Every startup here works in Manufacturing and has raised money in a round we track that names US Department of Energy as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Sector portfolio **US Department of Energy's Energy portfolio** 69 startups · $14B](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-energy-portfolio)[Sector portfolio **US Department of Energy's Cleantech portfolio** 43 startups · $3.0B](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-cleantech-portfolio)[Sector portfolio **US Department of Energy's Chemicals & Materials portfolio** 32 startups · $1.0B](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-chemicals-materials-portfolio)[Sector portfolio **US Department of Energy's Big Data & Analytics portfolio** 16 startups · $19M](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-big-data-analytics-portfolio)[Sector portfolio **US Department of Energy's AI portfolio** 13 startups · $457M](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-ai-portfolio)[Sector portfolio **US Department of Energy's Biotech portfolio** 13 startups · $109M](https://millionrounds.com/portfolio-maps/u-s-department-of-energy-biotech-portfolio) ## Raising from investors like US Department of Energy? 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