Atlantic Bridge Co-Founder Brian Long Departs Firm
Long is leaving the European venture capital firm he helped establish to launch a new US-focused technology fund.
Updated on Nov. 6, 2026 in Startups
Brian Long, co-founder of Atlantic Bridge, is leaving the venture capital firm. He announced his departure in a statement and plans to establish a new fund focused on the United States technology sector.
Why it matters
The departure of a co-founder from a firm with €1.4bn in assets under management and around 120 portfolio companies signals a leadership transition in European deep-tech investing. Long's move to a US-focused fund reflects continued investor interest in the American technology market.
Atlantic Bridge, founded in 2004, reports €1.4bn in assets under management across around 120 portfolio companies. The source does not specify how the departure will affect the firm's portfolio or fund size.
The players
Brian Long
Long is a co-founder and managing partner of Atlantic Bridge who previously founded and led Parthus-Ceva Technologies and GloNav Inc.
Atlantic Bridge
Atlantic Bridge is a venture capital firm founded in 2004 that invests in deep-tech companies across Europe, the UK and the US.
The details
Long, who led Parthus-Ceva Technologies as founder and CEO from 1993 to 2003, announced he is leaving Atlantic Bridge, where he is a managing partner. The firm invests in deep-tech companies across Europe, the UK and the US, with offices in Dublin, London, Munich, Paris and Palo Alto.
Timeline
2004: Atlantic Bridge is founded.
1993 to 2003: Long serves as founder and CEO of Parthus-Ceva Technologies.
November 6, 2026: Long's departure from Atlantic Bridge is announced.
Market Landscape
Atlantic Bridge was founded in 2004 to back deep-tech companies in Europe, and Long's departure to a US-focused fund reflects the pull of American technology markets for European-born investors. The move places Long in direct competition with US-based venture firms for technology deals.
For founders seeking venture funding in Europe and the US, a leadership change at a major deep-tech investor may shift which partners they approach. Investors and founders should watch for details of Long's new fund, which Long says will be shared in due course.
The takeaway
Leadership transitions at established venture firms often precede new fund launches, so founders and limited partners tracking Atlantic Bridge's portfolio should monitor how the firm and Long's new vehicle develop. Watching announcements from both can clarify where deep-tech capital is flowing next.
Further reading
Explore more Startups coverage for context on venture capital firms and new fund launches.
