Spark Cleantech Accelerator
Overview
Spark Cleantech Accelerator is a 12-week, in-person program for early-stage cleantech companies, offering mentorship, connections, stipends, prototyping services, and business acceleration to help commercialize new innovations. It is an initiative of the Spark Innovation Center at the University of Tennessee Research Park. The program focuses on technologies in areas such as clean energy, water treatment, additive manufacturing, and green building. It is supported by partners including the U.S. Department of Energy, the University of Tennessee, the City of Knoxville, and the Tennessee Valley Authority.
Portfolio Companies
20
Website
utresearchpark.orgInvestments
| Company | Date | Stage | Lead |
|---|---|---|---|
| 3D Solar | Oct 2024 | Pre Seed | Co-investor |
| Green Llama | Aug 2022 | Accelerator | Co-investor |
| NXT MFG | Aug 2026 | Accelerator | Co-investor |
| AluminAiry | Aug 2024 | Accelerator | Co-investor |
For institutional investors. Book with your work email.
Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.
FAQ
Where is Spark Cleantech Accelerator based?
Spark Cleantech Accelerator is headquartered in Knoxville, Tennessee, United States.
When was Spark Cleantech Accelerator founded?
Founding year information for Spark Cleantech Accelerator is not publicly available.
How many portfolio companies does Spark Cleantech Accelerator have?
Spark Cleantech Accelerator has 20 portfolio companies in Caplight's dataset.
What are some companies in Spark Cleantech Accelerator's portfolio?
Portfolio companies visible on Caplight include 3D Solar, Green Llama, NXT MFG, AluminAiry.
What was Spark Cleantech Accelerator's most recent investment shown here?
Spark Cleantech Accelerator's most recent investment in this portfolio sample was in NXT MFG in 2026.
What sectors does Spark Cleantech Accelerator focus on?
Spark Cleantech Accelerator focuses on Frontier & Industrial Tech, Frontier & Industrial Tech, Frontier & Industrial Tech, Healthcare & Life Sciences, Energy & Sustainability, Healthcare & Life Sciences, Consumer & Commerce, Energy & Sustainability, Energy & Sustainability, Enterprise Software, Energy & Sustainability, Energy & Sustainability, Energy & Sustainability, AI, Data & Cloud Infrastructure, Energy & Sustainability, Energy & Sustainability, Frontier & Industrial Tech, Energy & Sustainability, Energy & Sustainability, Frontier & Industrial Tech, Energy & Sustainability, Energy & Sustainability, Frontier & Industrial Tech, Frontier & Industrial Tech, Frontier & Industrial Tech, Frontier & Industrial Tech, Mobility, Transportation & Logistics, Frontier & Industrial Tech, Frontier & Industrial Tech, Mobility, Transportation & Logistics, Enterprise Software, Energy & Sustainability, Frontier & Industrial Tech, Frontier & Industrial Tech, AI, Data & Cloud Infrastructure, Frontier & Industrial Tech, Consumer & Commerce.
What company stages does Spark Cleantech Accelerator focus on?
Spark Cleantech Accelerator typically invests at the Early stage.