Russell Haggar
Angel investor in Cambridge
Cambridge, England
Russell Haggar, Angel investor in Cambridge is an active investor based in Cambridge, England. This profile covers what Russell Haggar backs, at which stage, and how founders can reach out in 2026.
Mr. Russell Haggar co-founded & served as Chief Executive Officer, Chairman, and Board Member at VyperCore. He also co-founded Xsilon and served as its Chief Executive Officer. He is also an Angel Investor. He was previously a Partner at Esprit Capital Partners and Prelude Ventures. Russell has been active in the high-tech commercial industry for well over 20 years, graduating from deep technical roles into commercial and operational leadership activities, and including a productive six-year spell as a venture capital principal. Former companies include Element 14, Marconi, Madge Networks, 3Way Networks, Sagentia, XMOS, SiConnect, Prelude Venture,s and DFJ Esprit. Russell is responsible for business development, marketing, and product management activities.
- Investor type
- AngelVCAcceleratorIncubator
- Stages
- Early Stage Venture
- Invests in
- Hardware & Deep TechQuantum & SemiconductorsSaaS & EnterpriseManufacturing & IndustrialMedia & ContentTelecom & ConnectivityFintech
- Location
- Cambridge, England
- Typical check
- $500K
- Past investments
- 10
Notable investments
XMOSsirilintaDisplaydata3Way NetworksFillFactory NVPrelude Trust PLCHow to reach Russell Haggar
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Cite this page
Round Funded. "Russell Haggar." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/russell-haggar
Frequently Asked Questions
What does Russell Haggar invest in?
Russell Haggar invests in Hardware & Deep Tech, Quantum & Semiconductors, SaaS & Enterprise and Manufacturing & Industrial, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Russell Haggar invest at?
Russell Haggar typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Russell Haggar's typical check size?
Russell Haggar typically writes checks around $500K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
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