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:
- 19
- Last investment:
- Lead investor:
- 42%
Last updated:
For AI agents: llms.txt
Industries Brian Long invests in
Stages Brian Long invests in
Countries Brian Long invests in
Investment Focus
Industry
- Software 5 (26%)
- Semiconductor 4 (21%)
- Artificial Intelligence 4 (21%)
- Analytics 3 (16%)
- Electronics 2 (11%)
Stage
- Series A 8 (42%)
- Series B 4 (21%)
- Seed 3 (16%)
- Series C 3 (16%)
- Series D 1 (5%)
Country
- United States 12 (63%)
- United Kingdom 1 (5%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Corvic AI
|
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
|
Graphiant is a venture-funded stealth startup working on next-generation networking technologies. It was founded in 2020 and is headquartered in San Francisco, California. | $62M / Series B / Mar 28, 2023 | |
Drip
|
Drip provides the thrill of live commerce to NFTs, and physical collectibles. | $23M / Series A / May 17, 2022 | |
Facet Data
|
Facet Data provides exploratory analytics platform services. | $8M / Seed / Jun 22, 2021 | |
Elisity
|
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
|
Graphiant is a venture-funded stealth startup working on next-generation networking technologies. It was founded in 2020 and is headquartered in San Francisco, California. | $34M / Series A / Dec 09, 2020 | |
SambaNova
|
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
|
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
|
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 | |
Hedvig
|
Hedvig, formerly Quexascale is re-architecting software-defined storage. Built by software engineers of the world's largest and most successful distributed systems, Hedvig delivers modern storage for any enterprise compute environment running at any scale. The Hedvig platform is the only software-defined storage solution with true distributedsystems DNA, unconstrained by traditional thinking and existing architectures that can't keep pace with scale-out applications and the velocity of change in today's business climate.What makes Hedvig unique? Put simply: Hedvig gets better and smarter as it scales. Hedvig defies conventional wisdom, transforming commodity hardware into the most advanced storage solution available today. Hedvig accelerates data to value by collapsing disparate storage systems into a single platform, creating a virtualized storage pool that provisions storage with a few clicks, scales to petabytes, and runs seamlessly in both private and public clouds. | $21.5M / Series C / Mar 02, 2017 | |
| See all 19 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 | |
|---|---|---|---|
|
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 19 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 Brian Long last invest?
The most recent investment recorded for Brian Long closed in Apr 2025. Shizune tracks 19 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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