Brian Long
Managing Partner @ Atlantic Bridge
Palo Alto, United States
Brian Long is a Series A investor at Atlantic Bridge in Palo Alto focused on Software and Semiconductor. Brian Long is founder and Managing Partner of Atlantic Bridge Ventures. His active investments and board seats include Movidius Inc, Blue Data Inc, Hedvig Inc, 3D Robotics Inc, Swrve Inc, Boxfish Inc, Lion Semiconductor, GBox Inc, Nod Labs, Navitas Semiconductor, and Highlight Semiconductor. Some of his previous investments and board seats includeMaginatics (Acquired by EMC), Ozmo Devices (Acquired by Atmel), BridgeCo (Acquired by SMSC), Silicon Blue (Acquired by Lattice Semiconductor), Osmetta Inc (Acquired by Facebook).Brian was founder and CEO of Parthus-CEVA technologies 1993 - 2003 which he took public (IPO) on Nasdaq and London Stock Markets (Nasdaq: CEVX) . He was founder and Chairman of GloNav Inc which developed the first single chip GPS solutions used on Galaxy mobile phones (Acquired by NXP).Brian has a Master's Degree in Electronic Engineering from Trinity College Dublin, Ireland.Brian grew up in Dublin Ireland and now lives and works in Palo Alto California.
- Total investments:
- 22
- Last investment:
- Lead investor:
- 45%
Last updated:
For AI agents: llms.txt
Industries Brian Long invests in
Stages Brian Long invests in
Countries Brian Long invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Software 5 (23%)
- Semiconductor 5 (23%)
- Artificial Intelligence 5 (23%)
- Analytics 3 (14%)
- Electronics 3 (14%)
Stage
- Series A 8 (36%)
- Series B 6 (27%)
- Seed 3 (14%)
- Series C 3 (14%)
- Series D 1 (5%)
Country
- United States 12 (55%)
- Ireland 1 (5%)
- United Kingdom 1 (5%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Corvic AI is pioneering a new era of Data-Centric AI Cognitive Infrastructure by transforming raw enterprise data into AI-ready intelligence. | $12M / Seed / Apr 15, 2025 | ||
| Graphiant provides Network-as-a-Service solutions that enhance connectivity for AI, Cloud, and SaaS applications. The company focuses on delivering software-based, agentless solutions that integrate smoothly with existing systems. These services optimize performance for various workloads and accommodate diverse hardware setups. Graphiant aims tosimplify network deployment and scaling, ensuring that businesses can adapt to evolving connectivity needs. By offering a unified network solution, Graphiant supports organizations in navigating the complexities of modern digital environments. | $62M / Series B / Mar 28, 2023 | ||
| Drip provides the thrill of live commerce to NFTs, and physical collectibles. | $23M / Series A / May 17, 2022 | ||
| Facet Data provides exploratory analytics platform services. | $8M / Seed / Jun 22, 2021 | ||
| Elisity is an identity-based microsegmentation platform that simplifies Zero Trust security for modern enterprise networks. By leveraging existing switching infrastructure, it allows organizations to discover, classify, and secure all managed and unmanaged devices—including IT, OT, and IoT assets—without requiring new hardware or complex agents.The platform enforces granular access policies directly at the network edge, effectively preventing lateral movement and minimizing the attack surface. This innovative approach provides rapid time-to-value and scalable protection, ensuring that users and devices can only access the resources they explicitly need to function. | $26M / Series A / Jun 15, 2021 | ||
| Graphiant provides Network-as-a-Service solutions that enhance connectivity for AI, Cloud, and SaaS applications. The company focuses on delivering software-based, agentless solutions that integrate smoothly with existing systems. These services optimize performance for various workloads and accommodate diverse hardware setups. Graphiant aims tosimplify network deployment and scaling, ensuring that businesses can adapt to evolving connectivity needs. By offering a unified network solution, Graphiant supports organizations in navigating the complexities of modern digital environments. | $34M / Series A / Dec 09, 2020 | ||
| SambaNova develops artificial intelligence computing infrastructure that combines AI processors, hardware systems, and software for deploying and managing AI inference workloads. Its platform supports cloud, on-premises, and hybrid deployments, enabling organizations to run and manage large language models and AI applications using compatible APIsand orchestration tools. | $150M / Series B / Apr 01, 2019 | ||
| HiLight Semiconductor Ltd, a “Fabless Chip Company”, was founded in 2012 by veterans of several previous start-ups. HiLight design and supply analogue and mixed-signal CMOS ICs for high speed fiber-optics based communications and networking applications.HiLight specialises in particular in the world’s highest performance PMD and PHY ICs inadvanced CMOS nodes. | $20M / Series C / Mar 01, 2019 | ||
| SambaNova develops artificial intelligence computing infrastructure that combines AI processors, hardware systems, and software for deploying and managing AI inference workloads. Its platform supports cloud, on-premises, and hybrid deployments, enabling organizations to run and manage large language models and AI applications using compatible APIsand orchestration tools. | $56M / Series A / Mar 15, 2018 | ||
| DecaWave is a pioneering fabless semiconductor company which has developed a complete, single chip CMOS ultra wideband IC based on the IEEE802.15.4a standard, and building a family of parts to work at rates 110kbps, 850kbps, 6.8Mbps and 27Mbps.DecaWave has identified the rich potential of ultra wideband (UWB) technology, with particular focuson real time location systems (RTLS) and Wireless Sensor Networks (WSNs), and has been instrumental in developing the alternate PHY IEEE802.15.4a standard.The resulting silicon has a wide range of applications and DecaWave is currently working with lead companies in over 30 different verticals to develop applications in areas as diverse as agriculture, manufacturing, healthcare, lighting, security, transport, inventory & supply chain management. | $36.8M / Venture - Series Unknown / Feb 21, 2018 | ||
| See all 22 investments → | |||
Co-Investors
About Atlantic Bridge
Atlantic Bridge is a Growth Equity Firm with a Cross Border Value Add strategy. We invest in deep technology companies in Europe and the US. Our team is made up of successful entrepreneurs and senior technology industry executives and we invest in strong ambitious entrepreneurs and management teams that have the passion and drive to scale up andexploit major growth opportunities. We help our portfolio companies expand and grow internationally through our global platform with our team and offices in London, Dublin, Munich, Paris and Palo Alto.Atlantic Bridge brings together a unique team of technology entrepreneurs, experienced managers, finance professionals, and investment experts. The team contains a wealth of international business experience across Europe, the UK and the US. They have worked together in various capacities for the last 30 years, bringing a true partnership approach to their firm and their investments. Its investors include the founders, leading institutional investors, and private investors with a track record of investment in successful technology companies.Atlantic Bridge has developed a unique and differentiated strategy that focuses on specific technology themes and the implementation of the “Atlantic Bridge Model” for scaling companies internationally. The “Bridge Model” accelerates the scale-up of technology companies in Europe and the US. This approach is highly differentiated and has delivered strong performance results to date.
Atlantic Bridge Contacts
| Name | Phone | Socials | |
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Brian Long
Managing Partner
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Gerry Maguire
Co-Founder and General Partner
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Helen McBreen
Partner
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Kevin Dillon
Managing Partner & Co-Founder
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Chris Horn
Venture Partner
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FAQ
What does Brian Long invest in?
Brian Long invests primarily in Software, Semiconductor and Artificial Intelligence startups, most often at Series A and Series B stage. Most of the 22 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Brian Long?
Public channels for Brian Long include LinkedIn. 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 Brian Long last invest?
The most recent investment recorded for Brian Long closed in Apr 2025. Shizune tracks 22 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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