Dependably Powering Anywhere.

We are scientists, engineers, and creative business minds working together to make distributed electricity generation a reality. The era of the internal combustion engine is waning and Upstart is focused on providing high performance, low emission, and cost-effective fuel cell power solutions.

Headquartered outside Boston in Southborough, MA, Upstart Power is a growth-stage company, founded in 2018 by a team of serial entrepreneurs and fuel cell experts. The Upstart team is developing and commercializing solid oxide fuel cell (SOFC) technologies and products and changing the landscape of backup power and renewables-based generation for residential, small industrial, and remote power applications.

Upstart Power provides small SOFC generators that are cost effective, dependable, carbon – efficient and virtually silent as they convert propane or natural gas efficiently into electricity. Our products are specifically designed for cycling (many on/offs) and to operate only as needed, allowing them to pair seamlessly with storage for long – duration backup power or with solar and storage to provide 24/7/365 energy solutions.

Upstart partners with industry – leading companies to market, sell, deploy, and support its fuel cell products around the world. These partners include companies focused on residential solar deployment, backup power products, renewable power systems, remote industrial power generation, and telecommunications infrastructure.

The time is here for efficient and environmentally friendly backup power and distributed generation solutions. We are Upstart Power – delivering reliable power, on – demand, anywhere.

Backup generator with solar panels

Backup power distribution generation for remote industrial application.


Upstart Power has a long and rich history in high-performance fuel cell technology and systems. Many of Upstart’s founders and employees were team members at Protonex Technology Corporation. Protonex was focused on Proton Exchange Membrane (PEM) fuel cells, Solid Oxide (SOFC) fuel cells, and power management devices for military and commercial applications and operated privately and publicly (on London’s AIM exchange) from 2000 through 2015.

In 2015, Protonex was wholly acquired by Ballard Power (NASDAQ: BLDP) and the majority of the Protonex team remained in place as Ballard continued an impressive domestic and international growth trajectory in fuel cells.

In 2018, Ballard agreed to divest the entire SOFC portion of its business and sell it to the Protonex founders in a management buyout. Upstart Power became a reality when that transaction closed later that year.

Engineer working on electronics

Building internal Upgen components.


Paul Osenar

President & CEO

Dr. Osenar has extensive experience in commercializing technology, having worked for upstart power and it’s predecessor company, Protonex since 2000.  He was appointed CEO of that company in 2010 and was instrumental in the sale to Ballard Power Systems in 2015.  His primary area of expertise is with fuel cells, having been named in over 50 issued and pending patents.  Dr. Osenar received a B.S. from Cornell University and a Ph.D. in materials science from the University of Illinois.

Paul Osenar Portrait

Nathan Palumbo


Mr. Palumbo has a background in mechanical design, technology, and product development. Before joining Upstart Power, Mr. Palumbo worked at NASA’s Dryden flight research center, at Gentex corporation, and at the University of Tennessee Space Institute. Mr. Palumbo has earned multiple patents through his work in transforming SOFC technology from continuous production to intermittent power delivery, including those in fuel cell heat transfer, fuel reactor design, and mechanical systems. Mr. Palumbo holds a B.S. from Penn State University and M.S. from Purdue University, both in Mech. Eng.

Nate Palumbo Portrait

Jeff Gatto

SVP, Engineering and Manufacturing

Mr. Gatto has over 30 years of experience in engineering, new product introduction, manufacturing, and supply chain optimization. He specializes in fast-tracking new products from concept to volume production. Most recently he was Vice President of Hardware Engineering and NPI at Casa Systems (broadband and wireless equipment). Prior roles include leadership positions at Whoop Inc. and Myriant (both startups) as well as established companies including Tyco Safety, 3Com, Digital, IBM. Mr. Gatto has a B.S. in Mechanical Engineering from Tufts University and a M.S. in Electrical Engineering from Syracuse University.

David Aubrey

VP, Finance

Mr. Aubrey has been working with the Upstart team for the past 6 years, first as controller for Protonex. Mr. Aubrey has worked for a variety of enterprises including start-ups and large, multinational companies. He holds a B.S. in accounting from the University of Massachusetts.

Rich Flathers

VP, Software & Electronics

Mr. Flathers has over 25 years of technical and leadership experience in all facets of software engineering and product development, including at Startek inc, where he led software development, at 3com where he was director of engineering and at Scope Communications where he was Chief Software Architect.  Mr. Flathers holds a Sc.B. in electrical engineering from Brown University and has been awarded a patent by the USPTO in the area of software architecture.

Georg Bettenhauser

VP, Business Development


Mr. Bettenhauser comes to Upstart with over 25 years of experience in the sales, business development, channel management, commercial partnerships, and marketing of innovative high-tech products. His substantial go-to-market expertise within the renewable energy space is now squarely aimed at increasing the pace and impact of Upstart’s expanding product portfolio on a fast-growing universe of partnership & business opportunities.


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First and Last Name
Position and company
Education and qualifications

First and Last Name
Position and company
Education and qualifications

First and Last Name
Position and company
Education and qualifications

First and Last Name
Position and company
Education and qualifications

First and Last Name
Position and company
Education and qualifications


Upstart Power is a very exciting and rewarding place to work and we are always looking for exceptional people to join our team and help us grow!

Current Open Positions:

VP of Quality Assurance

VP of Product Development

Principal Mechanical Engineer

Supply Chain Buyer Planner

Senior Mechanical Engineer

Mechanical Engineer

Test Engineer

Test Technician

Strategic Commodity Manager

If you see a position that might be a fit, reach out and apply at We look forward to hearing from you.