Apply now | Spark Accelerator opens 2026 applications
The Spark Innovation Center opens 2026 applications for its 12-week accelerator, offering tech startups $15,000 stipends, prototyping services, and direct access to TVA and Oak Ridge National Laboratory expertise.
The Spark Innovation Center at the University of Tennessee (UT) Research Park has officially opened applications for its 2026 Spark Accelerator, seeking the next generation of hardware, advanced materials and energy system innovators.
The accelerator serves as a critical path between laboratory prototypes and industrial-scale deployment by leveraging a unique ecosystem that includes Oak Ridge National Laboratory (ORNL), the Tennessee Valley Authority (TVA) and UT’s research infrastructure.
The next decade of American energy will be built in Energy Valley,” said Bill Malkes, Executive Director of the Spark Innovation Center. “We are at the University of Tennessee Research Park for a reason. Founders here can access Oak Ridge National Laboratory, test on TVA’s grid, and manufacture at scale. That is the bet we are making.”
A track record of success
Since its inception, Spark has become a powerhouse for regional economic development. In just three years of operation, Spark-affiliated companies have reached significant milestones:
- Total funding: Secured over $129 million in non-dilutive grants and $44 million in equity investments.
- Revenue: Generated $29.9 million in sales.
- Job creation: Produced 205 jobs and supported 59 internships.
- Regional impact: Maintained a 70% presence in East Tennessee.
The success of the Spark accelerator model is personified by Lance Adler, founder of Witching Hour. Adler moved to Knoxville for the Techstars Industries of the Future Accelerator in 2023, got accepted into Spark, built connections, and still remains in the area as a part of the competitive Innovation Crossroads program at ORNL.
His company, which develops robotic systems to coat power lines and prevent wildfires, grew under the program’s mentorship and local utility access.
“Spark gave me the structure to turn a working prototype into a fundable company,” Adler said. “It forced discipline around unit economics, customer discovery, and pilot design. KUB allowed me to test my materials on its active distribution network. That kind of access is hard to find elsewhere.”
New expert guidance for founders
Adding to the center’s robust support system, Spark recently announced the appointment of Chris McAdoo as the 2026 Expert in Residence (EIR). McAdoo, founder of Fighting Shape Impact Company and former Chief Experience Officer at the Knoxville Entrepreneur Center, will provide direct coaching to founders on brand clarity, strategy, and scaling.
“McAdoo brings a wealth of experience in entrepreneurship and marketing, and he’ll be an incredible resource for Spark founders as they develop and launch their ideas into businesses,” said Bill Malkes, Executive Director of the Spark Innovation Center.
Program details
The 2026 cohort will begin on August 24th. Selected founders must reside in Knoxville for the duration of the 12-week program. The accelerator is provided without any equity or financial obligation from the startups.
Participants receive:
- A $15,000 stipend for travel, living, and technical milestones.
- Prototyping services through the UT Center for Materials Processing.
- Direct mentorship in IP strategy, financial planning, and investor readiness.
- Facilitated access to major players like TVA, ORNL, the City of Knoxville, and the Tennessee Advanced Energy Business Council.
Applications are open to founders across the United States, though a strong preference is given to those intending to build their home base in East Tennessee.
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