About Flux XII
Flux XII is an Energy & Utilities company based in Madison (United States) founded in 2021 by Dawei Feng, Xiuliang Lyu, and Patrick Sullivan. It develops organic redox materials and flow battery systems for energy storage. It operates on a B2B model. Flux XII has raised $3.95 million across 1 funding round. Its chief executive, as recorded, is Patrick Sullivan. Flux XII offers products and services including Organic Redox Materials, Ion-Exchange Membranes, and Grid Flow Battery Systems. Its focus areas include Clean Technology, Sustainable Solutions, Grid Infrastructure and Organic Materials. Its competitors include Quino Energy and XL Batteries; 2 of its 2 listed competitors have raised funding.
Company details
Flux XII is a start-up company focused on organic energy solutions, developing technologies like organic redox materials, ion-exchange membranes, and grid flow battery systems. These innovations aim to deliver sustainable, safe, reliable, and efficient energy storage options for grid applications. The company emphasizes combating climate change through advanced materials and systems, though specific locations and clients are not detailed.
- Headquarters Madison, United States
- Founders Dawei Feng, Xiuliang Lyu, Patrick Sullivan
- SectorsEnergy & Utilities
- Website flux12.com
- Social LinkedIn
- Total Equity Funding$3.95M (USD)
in 1 rounds
- Latest Funding Round$3.95M (USD), Seed
Nov 2025
Products & Services of Flux XII
Flux XII offers a comprehensive portfolio of products and services, including Organic Redox Materials, Ion-Exchange Membranes, and Grid Flow Battery Systems.
Advanced materials for enhancing flow battery performance.
Components used in energy storage systems for efficient operation.
Systems providing reliable grid-scale energy storage solutions.
Funding Insights of Flux XII
Flux XII has successfully raised a total of $3.95M through 1 strategic funding round. The most recent funding activity was a Seed round of $3.95 million completed in November 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $3.95M
- Total Rounds 1
- Last Round Seed — $3.95M
- First Round $3.95M
(Nov 2025)
All 1 funding rounds of Flux XII with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Nov 2025 | $3.95M | Seed | – | – | – |
People of Flux XII
3 people are tracked at Flux XII (3 in leadership).
| Name | Role | Group |
|---|---|---|
Dawei Feng | Co-Founder | Leadership |
Xiuliang Lyu | Co-Founder | Leadership |
Patrick Sullivan | Co-Founder, CEO | Leadership |
Complete people profiles for Flux XII
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
- Full employee list
- Team structure
- Board tenure
- Professional contacts
Verified entity values are shown only after access is granted.
Timeline of Flux XII
2 dated milestones of Flux XII across 4 years, from founding to its latest funding, stage changes and deals.
- Founded Flux XII is founded.
- Funding First funding round of $4.0M.
Competitors of Flux XII
Flux XII has 2 listed competitors in our database, 2 of them funded. They include Quino Energy and XL Batteries.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| quinoenergy.com | 2021 | Menlo Park, United States | $4.66M | 3 | Provider of solutions for energy storage systems | |
| xlbatteries.com | 2019 | Marlborough, United States | $22.5M | Organic flow energy storage solution |
Detailed competitors of Flux XII
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
- Full competitor set
- Operating metrics
- Benchmarks
- Competitive positioning
Verified entity values are shown only after access is granted.
Web traffic of Flux XII
The website of Flux XII (flux12.com) receives about 1.3K visits a month.
- Monthly visits1.3K
▲ 57.9% vs previous month
Top companies in Renewable Energy Platforms
3 companies that operate in the same segment as Flux XII (Renewable Energy Platforms) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Silicon-based solar PV modules are manufactured for diverse applications. | 1985 | San Jose, California, United States | USD 171.73 M | USD 300 M | 600 | |
Solar panel tracking software is provided for monitoring and control. | 2013 | Fremont, California, United States | USD 42.63 M | USD 3.56 B | 1,300 | |
Iron-air energy storage systems are developed for renewable energy projects. | 2009 | Somerville, Massachusetts, United States | USD 2 B | 902 |
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Frequently Asked Questions about Flux XII
Flux XII was founded in 2021 and raised its 1st funding round 4 years after it was founded.
Flux XII is headquartered in Madison, United States. It is registered at Madison, Wisconsin, United States.
Patrick Sullivan is the CEO of Flux XII, as recorded in our data. They have also founded this company.
Flux XII is a funded company, having raised a total of $3.95M across 1 funding round to date. The company's 1st funding round was a Seed of $3.95M, raised on Nov 2025.
Flux XII is a start-up company focused on organic energy solutions, developing technologies like organic redox materials, ion-exchange membranes, and grid flow battery systems. These innovations aim to deliver sustainable, safe, reliable, and efficient energy storage options for grid applications. The company emphasizes combating climate change through advanced materials and systems, though specific locations and clients are not detailed.
Flux XII's top competitors include Quino Energy and XL Batteries.
Flux XII offers Organic Redox Materials, Ion-Exchange Membranes, and Grid Flow Battery Systems.