Organization · Venture Capital
Summer Capital
Summer Capital is an early-stage venture capital firm headquartered in Amsterdam, Netherlands, focusing on investments in data and quantum computing startups across North America and Europe.
Overview
What Summer Capital does
What Summer Capital is
Summer Capital is an early-stage venture capital firm headquartered in Amsterdam, Netherlands, focusing on investments in data and quantum computing startups across North America and Europe.
How it participates in the startup ecosystem
The current public profile supports funder capabilities. Each capability below is shown separately so organization identity and role-specific information do not get conflated.
Operational profile
Organization status and context
Organization status describes the entity itself. Funding and program availability appear within the relevant capability profile.
- Operational status
- Active
- Organization type
- Venture Capital
- Founded
- Founded in 2013
- Approximate age
- About 13 years
- Structured capabilities
- Funder
- Last reviewed
- April 23, 2026
Official channels
Find Summer Capital elsewhere
Open the official website or a supported primary organization account.
Capability profile
Summer Capital as a funder
Investment thesis
Summer Capital focuses on investing in early-stage technology companies, particularly in data and quantum computing sectors, with a thesis-driven approach.
Focus narrative
Summer Capital invests primarily in early-stage data and quantum companies. The firm employs a thesis-driven investment strategy and operates across Europe, the United States, and Asia, targeting sectors such as RegTech, quantum hardware/software, cyber risk, and defense technology.
Value beyond capital
Summer Capital adds value to its portfolio companies through strategic guidance, leveraging its network and expertise in niche technology sectors. The firm's focus on early-stage investments allows it to provide tailored support to help companies navigate their growth trajectories.
Focus and fit
- Stages
- Pre-seed · Seed · Seed+ · Series A · Series A+
- Regions
- North AmericaEuropeAsia
Availability
- Currently deploying
- Not published
Portfolio and track record
- Recorded notable exits
- Sybenetix, QxBranch, and Rigetti Computing
Portfolio context
Notable portfolio companies include: Aalo: A nuclear energy startup. Envelop Risk: A cyber risk quantification platform. Horizon Quantum Computing: A Singapore-based quantum software company. Plytix: A Product Information Management (PIM) platform. Saronic: An autonomous maritime vessel company focused on defense technology.
Common questions
What to know about Summer Capital
Upseed classifies Summer Capital under the Venture Capital organization type. Its current public profile includes funder capabilities.
Source and update disclosure
Know what this page is based on
Source basis
Public organization and program material, official websites, and structured Upseed records.
Last reviewed
April 23, 2026
Known limits
Capability profiles appear only when a structured public profile also contains decision-useful role evidence. Terms and availability can change.
Upseed is an independent guide. It is not affiliated with or endorsed by the organization described on this page.