# Double M Partners

> Double M Partners is a VC fund in Los Angeles backing Software and Mobile. See 69 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Los Angeles, United States
- Total investments: 69
- Last investment: Jun 2018
- Lead investor: 10%
- Last updated: Aug 2026
- LinkedIn: http://www.linkedin.com/profile/view?id=121829
- X (Twitter): http://twitter.com/DoubleMcapital
- Website: http://doublempartners.com

Double M Partners is a venture capital and investment company that specializes in seed and early stage investments. It seeks to invest in the internet, media, and communications companies whose core offering is in business to business infrastructure, software, infrastructure, security, management platform and/or hardware. The company investsbetween $0.1 million and $0.50 million in its portfolio companies. Double M Partners was founded by Mark Mullen in 2012 and is headquartered in Los Angeles, California.

## Contacts

5 contacts available for Double M Partners. Shizune tracks 1 team members at Double M Partners. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/double-m-partners?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $1M–$3.8M |
| Series A | $2M–$10M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Software | 19 | 28% |
| Mobile | 10 | 14% |
| Internet | 10 | 14% |
| Advertising | 10 | 14% |
| SaaS | 8 | 12% |

121 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 27 | 39% |
| Series A | 21 | 30% |
| Funding Round | 6 | 9% |
| Series B | 4 | 6% |
| Convertible Note | 4 | 6% |

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 45 | 65% |
| Canada | 2 | 3% |
| Australia | 1 | 1% |

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Mark Mullen | Founder & Managing Partner | 97 | https://shizune.co/investors/profile/mark-mullen |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| 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. | $18M | Series B | Jun 26, 2018 |  |
| Fama | Fama is an AI-based solution that identifies and offers an opportunity to address problematic behavior among potential hires and current employees by analyzing publicly available online information. This type of content can ultimately lead to brand risk and toxic culture, and is often missed in the hiring and management process. | $5M | Series A | Apr 17, 2018 |  |
| Reaction Commerce | Reaction Commerce is a modern and open commerce platform built for the scale and simplicity required by today’s business owners, designers, and developers. Reaction is the first intelligent and easily customizable cloud solution to provide real-time merchandising, pricing and promotions, and live monitoring of conversions. The full-stack platformis internationalized and localized, architected for shops and marketplaces, and is the largest JavaScript commerce project on GitHub, with developer interest growing more than 232 percent year over year. Their managed cloud solution has now seen over 14,000 signups. Reaction Commerce is headquartered in Santa Monica, California. | $8.5M | Series A | Oct 31, 2017 |  |
| Branch | Branch is the leading workforce payments platform that helps businesses deliver fast, flexible options for workers to get paid. Whether it’s sending earnings to employees or contractors, companies choose Branch because they know that faster payments can help them strengthen worker loyalty, save time and money, and drive business growth. | $10M | Series A | Aug 02, 2017 |  |
| Trinity Mobile Networks | Trinity Mobile Networks seeks to improve data speed and total network bandwidth for mobile networks. The company develops wireless mesh networking technologies to provide affordable connectivity for its users.Trinity Mobile Networks has developed a new network architecture that improves the performance of mesh networks and an accompanyingandroid application which makes use of its platform. This application allows android devices to receive data through high-quality, inexpensive mesh connections and reduce their reliance on expensive cellular services. | $2.6M |  | Apr 19, 2017 |  |
| Shippabo | Shippabo is an online platform that provides its users with shipping rates and shipment scheduling solutions.The platform offers freight forwarding, government filings, and trucking and drayage services to its users. It features online bookings, online custom bond purchases, real-time notifications, and shipment management.Shippabo waslaunched by Calvin Lo, Nina Luu, Wes Chien, and Sam Luu and is based in California. | $850K | Seed | Feb 16, 2017 |  |
| Reaction Commerce | Reaction Commerce is a modern and open commerce platform built for the scale and simplicity required by today’s business owners, designers, and developers. Reaction is the first intelligent and easily customizable cloud solution to provide real-time merchandising, pricing and promotions, and live monitoring of conversions. The full-stack platformis internationalized and localized, architected for shops and marketplaces, and is the largest JavaScript commerce project on GitHub, with developer interest growing more than 232 percent year over year. Their managed cloud solution has now seen over 14,000 signups. Reaction Commerce is headquartered in Santa Monica, California. | $2.7M |  | Oct 05, 2016 |  |
| Bitium | Bitium is a Santa Monica-headquartered provider of cloud-based identity and access management solutions, including single sign-on, password management, and analytics for small, medium and enterprise businesses. Founded in 2012, the company aims to give growing companies the ability to manage access to all of their web-based applications --including Google Apps and Office 365, as well as social networks and CRM, collaboration and marketing tools -- in one place without hindering employee adoption of these applications. Organizations such as GroupM, Fullscreen, Movember and Demand Media use Bitium for an easy-to-use solution that delivers increased flexibility and security. Bitium is backed by Polaris Partners, Resolute VC, Double M Partners, Karlin Ventures, Social Leverage and a group of strategic investors in the enterprise cloud space. | $6M |  | Aug 30, 2016 |  |
| PingThings | PingThings brings real-time big-data technology and an innovative solution to machine-learning for physical systems together to transform the management of the state of the electric utility grid and high-value industrial assets such as GSU transformers and step-down transformers. PingThings' PredictiveGrid technology is designed from theground up with sensor analytics in mind, focusing on storing and manipulating time-series data and modeling complex relationships between synchrophasors' high-resolution signals. | $1.5M | Seed | Jun 30, 2016 |  |
| WeDo | WeDo is like the Google Analytics of your life. By taking out the friction of tracking your life, we can offer powerful correlations that are proven to improve your overall wellness. | $825K | Convertible Note | Apr 26, 2016 |  |

10 of 69 investments shown.

## Co-investors
- [Crosscut Ventures](https://shizune.co/investors/profile/crosscut-ventures) — VC Fund, 13 deals together
- [Karlin Ventures](https://shizune.co/investors/profile/karlin-ventures) — VC Fund, 11 deals together
- [Daher Capital](https://shizune.co/investors/profile/daher-capital) — VC Fund, 10 deals together
- [Amplify.LA](https://shizune.co/investors/profile/amplify-la) — VC Fund, 7 deals together
- [Baroda Ventures](https://shizune.co/investors/profile/baroda-ventures) — VC Fund, 7 deals together
- [Wavemaker Ventures](https://shizune.co/investors/profile/wavemaker-partners) — VC Fund, 7 deals together

## Similar investors

### Similar industry
- [ff Venture Capital](https://shizune.co/investors/profile/ff-venture-capital) — VC Fund
- [Play Ventures](https://shizune.co/investors/profile/play-ventures) — VC Fund
- [SilverCircle](https://shizune.co/investors/profile/silvercircle) — VC Fund

### 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

### Similar country
- [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
- [General Catalyst](https://shizune.co/investors/profile/general-catalyst-partners) — VC Fund

## Featured in investor lists
- [Mobile Apps VC Funds in United States](https://shizune.co/investors/mobile-apps-vc-funds-united-states)
- [Local Investors](https://shizune.co/investors/local-investors)
- [Local VC Funds](https://shizune.co/investors/local-vc-funds)
- [Local VC Funds in United States](https://shizune.co/investors/local-vc-funds-united-states)
- [Hospitality VC Funds in United States](https://shizune.co/investors/hospitality-vc-funds-united-states)
- [Mobile Advertising Investors](https://shizune.co/investors/mobile-advertising-investors)

## FAQ

### What does Double M Partners invest in?

Double M Partners invests primarily in Software, Mobile and Internet startups, most often at Seed and Series A stage. Most of the 69 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 Double M Partners's check size?

Double M Partners typically joins rounds of $1M–$3.8M at Seed and $2M–$10M 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 Double M Partners participates in.

### How do I contact Double M Partners?

Public channels for Double M Partners include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at Double M Partners?

The team at Double M Partners includes Mark Mullen (Founder & Managing Partner). The Team section lists each member with their title, investment count and links.

### 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.

# About Shizune
Shizune.co is an investor database. Core features:
- 48,091 startup investors (angels, VCs, accelerators, and others)
- Email, phone, LinkedIn (for intros), socials, and other contact data
- Updated daily from public funding news
- CSV and Excel export

The User can access the full database FOR FREE after signing up: shizune.co