VC firms
MUUS is the home of the investment, philanthropic, and creative endeavors of Tiger 21 founder Michael Sonnenfeldt. We invest in a bolder, more sustainable future..
Overview
Employees
1-10
Investment Stage
Series A
Portfolio 34
| Date | Name | Website | Total Raised | Location |
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| May 16, 2025 | NuCurrentTweets | nucurrent.com | $3.48M | United States, Illinois, Chicago |
| May 16, 2025 | Ivy Energy | ivy-energy.com | United States, California, San Diego | |
| May 16, 2025 | Panthalassa | panthalassa.com | $365M | United States |
| May 16, 2025 | Aepnus Technology | aepnus.com | $8M | United States, California, Oakland |
| May 16, 2025 | Rail Vision Ltd | railvision.io | $10M | Israel, Center District, Raanana |
| May 16, 2025 | Rock Rabbit | rockrabbit.ai | ||
| May 16, 2025 | NxLite | nxlite.com | $25.8M | United States |
| May 16, 2025 | Amperon | amperon.co | $29M | United States |
| May 16, 2025 | Harvest Thermal | harvest-thermal.com | $14.6M | United States, California, Kensington |
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Mentions in press and media 8
| Date | Title | Description |
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| Jul 19, 2026 | NxLite Raises $13.1 Million Series A And Secures $3.5 Million Debt Facility | NxLite has completed a $13.1 million Series A financing and secured a $3.5 million debt facility to expand manufacturing of its energy-efficient coatings for glass and polymer substrates. The Series A exceeded the company’s original $10 mil... |
| Jul 16, 2026 | NxLite Closes $16.6M in Series A and Debt Facility | NxLite, Canton, MI-based manufacturer of air-stable coatings for glass and polymeric substrates, raised $13.1M in Series A funding, and $3.5M in debt facility from RSF Social Finance. The Series A was led by Crabtree Lane Alt, with new inve... |
| Jul 16, 2026 | NxLite Completes $13.1 Million Series A And $3.5 Million Debt Facility And Adds Erin Sawyer to Board | NxLite, the manufacturer of air-stable, energy-efficient coatings for glass and polymeric substrates, announced the final close of its Series A financing, a $3.5 million debt facility from RSF Social Finance, and the appointment of technolo... |
| Oct 16, 2025 | NxLite Secures $9.2M to Revolutionize Energy Efficiency with Advanced Coatings | NxLite secured $9.2M in Series A funding. This accelerates deployment of its innovative, air-stable, low-emissivity coatings. These materials drastically cut heating and cooling costs in buildings. They boost efficiency in refrigeration. Th... |
| Oct 15, 2025 | NxLite: $9.2 Million Series A Raised To Advance Energy-Control Coatings | NxLite has raised $9.2 million in Series A funding, aimed at accelerating the deployment of its innovative energy-control coatings. This investment will also support the company’s efforts to expand operations at its Advanced Innovation &... |
| Mar 16, 2021 | Self-driving electric tractor startup Monarch raises $20m Series A funding | Autonomous tractors may seem like a futuristic idea. But if you want to sell one to a farmer, don’t call it a robot, says Monarch Tractor co-founder and CEO Praveen Penmetsa. “Five years ago we came up with a very futuristic-looking machine... |
| Mar 16, 2021 | BREAKING: Self-driving electric tractor startup Monarch raises $20m Series A funding | Autonomous tractors may seem like a futuristic idea. But if you want to sell one to a farmer, don’t call it a robot, says Monarch Tractor co-founder and CEO Praveen Penmetsa. “Five years ago we came up with a very futuristic-looking machine... |
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FAQ about MUUS Climate Partners
How many startups has MUUS Climate Partners invested in?
MUUS Climate Partners has 34 portfolio companies on Parsers VC, among them NuCurrentTweets, Ivy Energy and Panthalassa.
What has the press written about MUUS Climate Partners?
Parsers VC has collected 8 articles mentioning MUUS Climate Partners, among them “NxLite Raises $13.1 Million Series A And Secures $3.5 Million Debt Facility” (Jul 19, 2026) and “NxLite Closes $16.6M in Series A and Debt Facility” (Jul 16, 2026).
Is MUUS Climate Partners still active?
Yes, MUUS Climate Partners is active; its latest activity on Parsers VC dates from Jul 20, 2026.