Mark Suster
Managing Partner @ Upfront Ventures
Los Angeles, United States
Mark Suster is a seed investor at Upfront Ventures in Los Angeles focused on Software and Social Media. Mark Suster is the Board member at GumGum. Mark Suster is the General Partner of Upfront Ventures. He previously worked at salesforce.com as a Vice President. Mark Suster attended the University of Chicago.
- Total investments:
- 83
- Last investment:
- Lead investor:
- 47%
Last updated:
For AI agents: llms.txt
Industries Mark Suster invests in
Stages Mark Suster invests in
Countries Mark Suster invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $1M–$6.6M
- Series A
- $3M–$18M
- Series B
- $4M–$20M
Investment Focus
Industry
- Software 16 (19%)
- Social Media 9 (11%)
- Artificial Intelligence 9 (11%)
- Information Technology 8 (10%)
- Mobile 7 (8%)
Stage
- Seed 22 (27%)
- Series A 16 (19%)
- Series B 10 (12%)
- Series C 7 (8%)
- Funding Round 6 (7%)
Country
- United States 39 (47%)
- Poland 1 (1%)
- United Kingdom 1 (1%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Andrenam is a defense technology and artificial intelligence company that develops an AI-powered distributed maritime sensing network for persistent underwater and surface domain awareness. The company builds autonomous acoustic sensing systems that detect, classify, and track maritime activity in real time, providing continuous intelligence fordefense, maritime security, and autonomous naval operations. Founded by former aerospace engineers, Andrenam focuses on strengthening maritime situational awareness through scalable, networked sensing infrastructure.Its platform combines AI-powered sonar processing, distributed acoustic sensing, edge and cloud computing, autonomous sensor networks, real-time data streaming, underwater target detection, and maritime intelligence into a unified system. Andrenam's Pearl smart buoys continuously collect and transmit acoustic data, enabling operators to detect and track submarines, unmanned underwater vehicles (UUVs), unmanned surface vehicles (USVs), and other maritime assets with low-latency analytics. The platform integrates AI-driven signal processing with distributed hardware to support persistent monitoring across large maritime environments. | $18M / Series A / Jul 23, 2026 | ||
| Itera provides digital consulting, AI, cloud, software development and technology services for businesses across industries. | $12M / Seed / May 27, 2026 | ||
| 222 is a consumer marketplace facilitating chance social experiences at hyperlocal venues. | $10.1M / Series A / Dec 24, 2025 | ||
| Nanit team is a tight-knit collection of scientists, parents and designers—experts in the first beautiful months of human life. They have developed advanced computer vision and machine learning algorithms to help us measure human behavior. They use this knowledge and technology to create innovative products that are safer and smarter, for parentsand babies everywhere.Their team comes from great companies like Applied Materials, Diapers.com, Philips, Time Warner and Tiny Love, where they've focused on building brands and products people love. | $50M / Private Equity / Dec 16, 2025 | ||
| AnySignal was developed to reimagine how RF capabilities are delivered for the most difficult tasks around the globe. offers complete solutions for modern aircraft, satellites, and national security that span communications, radar, navigation, and RF sensing. Current solutions are overpriced, unimaginative, and provide little end-to-end capability.To shift this paradigm, they are bringing the appropriate talent, procedures, and technologies together. They are developing communications systems for satellites, launchers, space stations, and aircraft. They provide full-stack connectivity solutions that include software modems, hardware for use in flight and on the ground, data management software, ground station integration software, and vehicle telemetry software. | $24M / Series A / Dec 09, 2025 | ||
| Modern Animal is an innovative veterinary platform building a new kind of veterinary experience for animals and humans. The veterinary platform offers unlimited exams, in-app prescription requests & delivery, 24/7 virtual care, and more. They build innovations in technology and design give you greater access to a team of experts,flexibility, and convenience in every interaction, and the highest level of personalized care.Modern Animal built the next generation in veterinary care, reshaping a traditional industry to better meet the needs of pet owners, pets, practitioners and staff. Through the state-of-the-art app and in-clinic technology and design, as well as a membership model that allows for quality relationships to develop between doctors, pets and pet owners.Modern Animal was founded in 2019 and is headquartered in Los Angeles, California, USA. | $46M / Series D / Sep 16, 2025 | ||
| Safe is an app that provides an email security service that verifies contacts. Safe was founded in 2021. | $1.2M / Pre-Seed / Mar 23, 2023 | ||
| Web 3 fantasy saga powered by community-created NFTs. Bonfire, our interactive game show, airs every Thursday. World build to earn rewards. | $6M / Seed / Nov 17, 2022 | ||
| Queer Spaces is building SPACES, a group chat platform for queer communities, and an app to serve the entirety of the LGBTQ+ spectrum. It’s a place for all queer people to connect over their favourite topics and interests, plan meetups and hang out. They can discover and join specific communities, fandoms, local teams and organizations, and closefriends, some public and others invite-only, all on a platform where they can safely be their true, authentic selves. | $1.1M / Convertible Note / Nov 09, 2022 | ||
| Remento makes it easier than ever to better understand and more deeply appreciate your family story through recorded conversations with a family member. The Remento mobile app recommends conversation prompts crafted by professional storytellers, neuroscientists, and memory researchers designed to uncover precious memories of a loved one’s past.Once recorded, stories from these sessions are showcased directly in a private Remento library, from where they can be easily shared without any fancy editing or processing. Whether it's reflections on monumental moments or the joys of everyday life, Remento helps break down barriers across generations, breed connection through curiosity, and remind us that understanding our own story starts by listening to the stories of others. | $3M / Seed / Sep 07, 2022 | ||
| See all 83 investments → | |||
Co-Investors
About Upfront Ventures
Upfront Ventures is proud to be an early investor and long-term partner to the most exciting founders and startups. Founded in 1996 in Los Angeles with investing professionals based in LA, San Francisco, and Paris, Upfront has backed standout teams across all technology sectors, including Ring (acq. by Amazon), TrueCar (NASDAQ: TRUE), Bird, MakerStudios (acq by Disney), GOAT, Apeel Sciences, thredUP, Invoca and Kyriba (acq by Bridgepoint). We invest about half of our capital in the fast-growing Southern California ecosystem, with the balance across the country as well as investments in Europe and Israel.Upfront Ventures is led by Managing Partners Yves Sisteron, Mark Suster, and Kara Nortman.
Upfront Ventures Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Kobie Fuller
General Partner
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Seksom Suriyapa
Partner
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Yves Sisteron
Managing Partner and Founding Partner
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Aditi Maliwal
Partner
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Conor Hayward
Analyst
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FAQ
What does Mark Suster invest in?
Mark Suster invests primarily in Software, Social Media and Artificial Intelligence startups, most often at Seed and Series A stage. Most of the 83 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 Mark Suster's check size?
Mark Suster typically joins rounds of $1M–$6.6M at Seed, $3M–$18M at Series A and $4M–$20M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Mark Suster participates in.
How do I contact Mark Suster?
Public channels for Mark Suster include LinkedIn, X (Twitter) and Facebook. 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.
When did Mark Suster last invest?
The most recent investment recorded for Mark Suster closed in Jul 2026. Shizune tracks 83 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 Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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