# Mike Walsh

> Mike Walsh is a seed investor at Structure Capital (San Francisco) backing Mobile Apps and Mobile. See 16 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Structure Capital](https://shizune.co/investors/profile/structure-capital)
- Location: San Francisco, United States
- Total investments: 16
- Last investment: Jun 2026
- Lead investor: 6%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/in/themikewalsh
- X (Twitter): http://twitter.com/mwalsh
- Facebook: https://www.facebook.com/mike.walsh

Mike Walsh is a seed investor at Structure Capital in San Francisco focused on Mobile Apps and Mobile. Mike Walsh serves as a General Partner at Structure Capital. Mike Walsh launched Structure Capital. He serves as an Advisor of S4 Style, Inc. He Co-Founded Leverage Software, Inc. and served as its Chief Executive Officer. Prior to Co-founding Leverage Software, Mike Walsh co-founded and served as Vice President of Sales at mvion and Vice Presidentof Sales and Business Development for Project Arena. After a decade of software sales and sales management, he Founded and sold an enterprise social networking company. Mike Walsh also focused his efforts on investing and was a first round investor in Uber. He is a pioneer in Active Relationship Networks and is instrumental in developing revolutionary business applications for social networking including sales lead generation, employee recruitment and marketing. He designed missile defense systems, designed and sold air and water pollution control systems and was Early Angel Investor in Salesforce.com. Mike Walsh holds M.B.A. from the Haas School of Business, and Columbia University and a B.S. in Mechanical Engineering from Worcester Polytechnic Institute.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $800k–$1.8M |
| Angel | $1M–$1.3M |
| Series A | $3.8M–$15M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Mobile Apps | 3 | 19% |
| Mobile | 2 | 13% |
| Travel | 2 | 13% |
| Internet | 2 | 13% |
| Software | 2 | 13% |

62 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 8 | 50% |
| Series A | 4 | 25% |
| Angel | 2 | 13% |
| Pre-Seed | 1 | 6% |
| Convertible Note | 1 | 6% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 12 | 75% |
| Canada | 3 | 19% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Artist Included | Artist Included is an artist-first music and technology company focused on ethical voice AI, creator ownership, and artist-approved music innovation. |  | Seed | Jun 16, 2026 |  |
| Biofire | Biofire is building the future of firearms. The Biofire Smart Gun is designed around state-of-the-art biometrics, creating a handgun that instantly unlocks for the authorized users and remains locked for all others. Through a vertically-integrated, full-stack, broad reimagining of the firearm industry, Biofire is enhancing gun safety whilepreserving privacy and civil liberties. For more information visit smartgun.com or contact press@biofire.io for media inquiries or ir@biofire.io for investor inquiries. | $15.2M | Series A | Nov 07, 2022 |  |
| PROTO | PORTL Inc. makes devices that present volumetric, 4K, life-lie, interactive presentations of people and things, as well as the software, cloud support and content to run them. PORTL is active in experiential marketing, education, telehealth, entertainment, and corporate communications. The devices allow anyone to "beam" anywhere as whatis popularly referred to as a hologram. Partners have included AT&T, T-Mobile, DHL, HBO, Major League Soccer, Mercedes Benz Stadium, Christies, amfAR, and IWC watches. | $12M | Series A | Nov 19, 2021 |  |
| LÜK Network | LÜK is a talent marketplace for the fashion and entertainment industries (models, photographers, stylists, hair and makeup artists, etc.). LÜK has assembled the top talent agencies into one location for clients to easily book talent for photo/video shoots. Think Expedia, but for professional talent. Now, LÜK is becoming the payments platformfor the entire industry. Currently, it takes talent agencies 60-150 days to get paid. LÜK is factoring the receivables of the 150 talent agencies in their network to get them paid out same day. | $1.1M | Pre-Seed | Jul 01, 2018 |  |
| CareGuide | CareGuide is a family of online services and our mission is simple: pair families and individuals with great care providers. With thousands of user profiles, you'll be able to find the best care provider for you, in your area, in just about any industry. | $6M | Series A | Jun 21, 2018 |  |
| Guiides | Guiides provide a frictionless online experience of discovering adventures and booking a local guide to take you there. | $1M | Angel | Jan 01, 2016 |  |
| Suiteness | Suiteness is a luxury travel startup, with an online booking platform that lets users access an inventory of suites, penthouses, and villas from luxury hotels. It also offers rooms that connect to suites for half the price of a typical two-bedroom suite for groups of 4 or more. With access to the most luxurious suites, most of which have neverbeen offered online before, guests experience amenities like private entrances, personal butlers, and even private pools. In addition to luxury travelers, the service is intended for families and large groups looking for accommodations with multiple bedrooms and shared space as the website carries exclusive suites with one to five attached bedrooms.Suiteness focuses on the hotel side as well by providing partners with brand protection, visibility, data transparency, and flexibility. The ultimate goal of the company is to showcase and market their hotel partners' most prized inventory, services, brand, and amenities through a unique and exciting platform. Currently, Suiteness is live in Las Vegas, New York, Miami, Orlando, Los Angeles, and London with access to luxury suites, half of which are being offered exclusively through Suiteness. The company intends to expand rapidly this year. They are headquartered in Oakland, CA.Suiteness was a part of Y Combinator's Summer 2016 class and in 2015, the company received investments from Structure Capital and Keystone Capital.In December 2016, Suiteness raised $5 million in a Series A round of funding, led by Bullpen Capital and Global Founders Capital and including participation from Max Levchin's HVF fund, Kima Ventures and Altair Capital. | $1M | Seed | Dec 08, 2015 |  |
| HONK | HONK is an innovative roadside assistance platform that uses both technology and a unique business model to turn what used to be a day-ruining catastrophe into nothing more than a bump in the road. Customers can order directly from HONK via mobile web or our app to find a nearby professional and track the location and ETA of their tow truck inreal-time. Roadside assistance professionals work with HONK to receive payment quickly and grow their businesses on their own terms. Insurance companies, auto OEMs, and fleets use our transparent platform and fully managed contact center to reduce wait times by over 50%, improve customer satisfaction, harness their roadside assistance data and receive industry leading NPS scores. | $1.8M | Seed | Nov 19, 2014 |  |
| CareGuide | CareGuide is a family of online services and our mission is simple: pair families and individuals with great care providers. With thousands of user profiles, you'll be able to find the best care provider for you, in your area, in just about any industry. | $1.5M | Seed | Oct 14, 2014 |  |
| Mavatar | Mavatar is a leading player in capturing, tracking & monetizing the phygital (Omnichannel) data. The company provides a suite of turnkey PaaS solutions on blockchain for creating branded marketplaces, influence marketing platform and shoppable content publishing platform operated by traditional and social media, CPGs, Procurement sites, chainretailers, malls,... Mavatar innovative & consumer-centric solutions bring unprecedented efficiency to the entire commerce ecosystem & close the gap between offline & online shopping, sales and advertising! The company’s products allow enterprises to manage next-gen omnichannel applications and transform complexity into digital success, leveraging innovative blockchain and AI solutions. | $2M | Convertible Note | Apr 01, 2014 |  |

10 of 16 investments shown.

## Co-investors
- [Structure Capital](https://shizune.co/investors/profile/structure-capital) — VC Fund, 4 deals together
- [Gaingels](https://shizune.co/investors/profile/gaing) — VC Fund, 2 deals together
- [Inovia Capital](https://shizune.co/investors/profile/inovia-capital) — VC Fund, 2 deals together
- [10X Capital](https://shizune.co/investors/profile/10x-capital) — VC Fund, 1 deal together
- [10x Group](https://shizune.co/investors/profile/10xgroup) — VC Fund, 1 deal together
- [11:11 Media](https://shizune.co/investors/profile/1111media) — VC Fund, 1 deal together

## About Structure Capital

VC Fund · San Francisco, United States

Structure Capital help passionate teams build great companies by investing seed-stage capital, time, experience and relationships. Building a valuable company is hard—They've done it—they can help you do it too. They love helping entrepreneurs reach their dreams.They focus on companies that create a new market or new set of buyers byexploiting, capitalizing and profiting on under-utilized assets and excess capacity. Assets might include cars, houses, planes, airports, time, skills, knowledge, storage, transport, office space, hotel rooms, event space, personal property, and much, much more. they also like service and solutions companies that support these types of companies. As a team, they've invested at the early stage of many Unicorns, including Salesforce.com, Uber, Tesla, Facebook, Google and more. They're proud to be first round investors in Uber which is a Structure Capital portfolio company. 10 of their current portfolio have raised next round financing within 12 months of their round.

3 contacts available at Structure Capital.

| Name | Title | Profile |
| --- | --- | --- |
| Jacob Shea | Partner | https://shizune.co/investors/profile/jacob-shea |
| Jillian Manus | Managing Partner | https://shizune.co/investors/profile/jillian-manus |
| Mike Walsh | General Partner | https://shizune.co/investors/profile/mike-walsh |

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## FAQ

### What does Mike Walsh invest in?

Mike Walsh invests primarily in Mobile Apps, Mobile and Travel startups, most often at Seed and Series A stage. Most of the 16 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Mike Walsh's check size?

Mike Walsh typically joins rounds of $800k–$1.8M at Seed, $1M–$1.3M at Angel and $3.8M–$15M at Series A. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Mike Walsh participates in.

### When did Mike Walsh last invest?

The most recent investment recorded for Mike Walsh closed in Jun 2026. Shizune tracks 16 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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