# Tumml

> Tumml is a VC fund in San Francisco backing Mobile, Software and Non Profit. See 28 investments, check sizes, portfolio. Updated Aug 2026.

- Type: VC Fund
- Location: San Francisco, United States
- Total investments: 28
- Last investment: Oct 2016
- Lead investor: 4%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/tumml-inc/
- X (Twitter): http://twitter.com/Tumml
- Website: http://tumml.org
- Facebook: http://www.facebook.com/sanfranciscotumml

Tumml is a startup hub for urban technology. We provide resources to early stage entrepreneurs tackling major urban challenges:- Ongoing support to Tumml's portfolio of urban innovation startups - Thought leadership on issues important to urban-focused entrepreneurs- Events and workshops where startups can engage with funders, policymakers, etc. If you have any questions, feel free to reach out to info@tumml.org.

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Mobile | 5 | 18% |
| Software | 4 | 14% |
| Non Profit | 3 | 11% |
| Communities | 3 | 11% |
| Apps | 2 | 7% |

80 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 18 | 64% |
| Grant | 5 | 18% |
| Funding Round | 4 | 14% |
| Pre-Seed | 1 | 4% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 25 | 89% |
| Chile | 1 | 4% |
| France | 1 | 4% |
| Israel | 1 | 4% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Green Badger | Green Badger is a Software as a Service (SaaS) platform providing easy to use, collaborative, cloud-based solutions to streamline and automate the green building construction market. Green Badger’s LEED Documentation software (featuring web, iOS and Android functionality) is the leading construction automation tool for managing LEED constructiondocumentation and offers construction teams a 60% in labor hours to document compliance, while reducing risk of liquidated damages for missing project goals and LEED contract requirements. We provide tools to make every contractor their own expert in sustainable construction. | $15K | Grant | Oct 01, 2016 |  |
| Skycool Systems | At SkyCool Systems, our mission is to deliver sustainable, energy-efficient cooling solutions to customers interested in reducing energy costs and carbon footprint. We’ve pioneered radiative cooling as a technology, and shown that specially designed optical films can enable this passive approach to cooling throughout the day. These optical filmsare highly reflective to sunlight but also emit thermal radiation exceptionally well to the cold of space through our atmosphere, enabling daytime operation during the hottest hours of the day. Our core innovation is a rooftop cooling panel. We apply the radiative film to rooftop panels and integrate them with air conditioning and refrigeration systems. The panels can be used as an add-on to air conditioning and refrigeration systems and in some circumstances even replace an air condensing unit. Our technology is accelerating the transition to a cleaner and more sustainable future. | $15K | Grant | Oct 01, 2016 |  |
| Wattz | Wattz empowers the internet of things by connecting solar power with batteries. Solar panels ensure batteries never runs out of power. It replaces the standard battery method that is used in the devices. The company detects and replaces any devices not performing as excepted. It saves money on its users’ annual battery replacement labor, no downtime, and the maintenance of the company guarantees all devices are always powered. The offices of the company are located across the U.S. and Ireland.Wattz is a U.S.-based company that was founded in 2016 by Ian Mathews. | $15K | Grant | Oct 01, 2016 |  |
| Hive Lighting | Hive Lighting is a tech startup that designs and manufactures energy efficient plasma lighting for the entertainment industries. Its products are engineered to be durable, lightweight, and foolproof. The company’s products use 50% to 90% less energy than conventional studio fixtures.Hive Lighting’s simple, rugged design makes them suitable forall types of production, whether on stages, studios, or at remote locations. All of its lamps use a single point plasma source that lasts over 10,000 hours, are flicker-free, universal orientation, and produce full, even spectrum daylight balanced light with a CRI of 94.Hive Lighting was founded in 2011 by | $15K | Grant | Oct 01, 2016 |  |
| UtilityAPI | UtilityAPI is a mission-driven software company that enables standardized data transactions for the new energy economy. Hundreds of companies use this everyday for quote generation, feasibility analyses, and asset management, measurement, and verification. UtilityAPI is based in oakland, California. | $15K | Grant | Oct 01, 2016 |  |
| ArtLifting | ArtLifting is a social enterprise that connects corporate customers with artists who are homeless or have disabilities. ArtLifting artists are across the U.S. and customers are worldwide. ArtLifting clients include Google, Starbucks, CBRE, FedEx, and LinkedIn. | $1.1M | Seed | Oct 27, 2015 |  |
| TINBOX | Tinbox is a free mobile app that allows you to give 1 free dollar everyday to the charity of your choice in under 10 seconds. Each dollar is entirely financed by a company.--You can give 365 dollars a year to charity. For free.Companies build a responsible brand image.Charities offer corporate sponsors a consistently high standardof visibility for their donations, making it easier for them to raise corporate funds. | $325K | Seed | Oct 12, 2015 |  |
| Stigma | Creating the world's first automatic mood tracker From the team that built the #1 rated mood tracker on the App Store with over 350K downloads - we're doing what Fitbit did for the automatic fitness tracking industry for automated mental wellness tracking, without the need for any hardware. Learn more: www.getstigma.com |  | Seed | Sep 01, 2015 |  |
| Forensic Logic | Forensic Logic is a company founded on a simple idea: there is too much crime on our streets because critical information is inaccessible or unusable to our nation’s law enforcement.That’s why we have assembled the largest database of local law enforcement data in the country and matched it with some of the most robust and intuitive crimesearch and analysis tools ever built.The result is an inexpensive and powerful platform that unleashes the power of law enforcement data in ways that have never been done before. |  |  | Sep 01, 2015 |  |
| HandStack | HandStack helps campaigns win votes with viral grassroots support. With their web & mobile app, you can recruit volunteers through social media, coordinate your volunteers with group task lists, and empower your supporters to make their own local groups. They currently have 100 organizations from US, UK, Peru, and Hungary on their beta waitlist. |  | Pre-Seed | Sep 01, 2015 |  |

10 of 28 investments shown.

## Co-investors
- [Bpifrance](https://shizune.co/investors/profile/bpifrance) — VC Fund, 1 deal together
- [Exponential Creativity Ventures](https://shizune.co/investors/profile/exponential-creativity-ventures) — VC Fund, 1 deal together
- Fledge — VC Fund, 1 deal together
- [Spring Invest](https://shizune.co/investors/profile/spring-3) — VC Fund, 1 deal together
- [Y Combinator](https://shizune.co/investors/profile/y-combinator) — VC Fund, 1 deal together

## Similar investors

### Similar stage
- [Antler](https://shizune.co/investors/profile/antler-be9c) — VC Fund
- [Alumni Ventures](https://shizune.co/investors/profile/alumni-ventures-group) — VC Fund
- [Right Side Capital Management](https://shizune.co/investors/profile/right-side-capital-management) — VC Fund

## FAQ

### What does Tumml invest in?

Tumml invests primarily in Mobile, Software and Non Profit startups, most often at Seed and Grant stage. Most of the 28 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### When did Tumml last invest?

The most recent investment recorded for Tumml closed in Oct 2016. Shizune tracks 28 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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