John Marsh
Senior Partner, Venture Capital @ Molten Ventures
London, United Kingdom
John Marsh is a Series A investor at Molten Ventures in London focused on Software and Information Technology. Richard Marsh is the Senior Partner, Venture Capital at Molten Ventures.
- Total investments:
- 6
- Last investment:
- Lead investor:
- 50%
Last updated:
For AI agents: llms.txt
Industries John Marsh invests in
Stages John Marsh invests in
Countries John Marsh invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Software 3 (50%)
- Information Technology 2 (33%)
- Legal 1 (17%)
- Analytics 1 (17%)
- Legal Tech 1 (17%)
Stage
- Series A 1 (17%)
- Series B 1 (17%)
- Funding Round 1 (17%)
- Venture - Series Unknown 1 (17%)
Country
- United States 2 (33%)
- United Kingdom 1 (17%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Apperio’s legal spend management software provides real-time visibility to help control and optimise your external spend with law firms. Data is gathered automatically, structured consistently and presented simply for analysis to help you make informed business decisions. Our unique approach of connecting directly with law firms’ practicemanagement systems provides ongoing and historical data at the touch of a button. This gives you complete cost certainty on both billed matters and work-in-progress legal fees. Apperio helps in-house teams to stay in control of their legal spend and build trust with external counsel by offering a collaborative, rather than adversarial approach to legal spend management. | $7M / Venture - Series Unknown / Jan 09, 2023 | ||
| Apperio’s legal spend management software provides real-time visibility to help control and optimise your external spend with law firms. Data is gathered automatically, structured consistently and presented simply for analysis to help you make informed business decisions. Our unique approach of connecting directly with law firms’ practicemanagement systems provides ongoing and historical data at the touch of a button. This gives you complete cost certainty on both billed matters and work-in-progress legal fees. Apperio helps in-house teams to stay in control of their legal spend and build trust with external counsel by offering a collaborative, rather than adversarial approach to legal spend management. | $10M / Series A / Aug 28, 2018 | ||
| Bright Computing is the leading independent provider of cluster and cloud management software. Bright Cluster Manager™ and Bright OpenStack™ provide a unified, hardware-agnostic approach to installing, provisioning, configuring, managing, and monitoring HPC clusters, big data clusters, and OpenStack private clouds. Bright’s products are currentlydeployed in more than 650 data centers around the world. Bright Computing’s customer base includes global academic, governmental, financial, healthcare, manufacturing, energy, and pharmaceutical organizations such as 3M, Boeing, Chevron, Cisco, CSIRO, GWDG, MARIN, Merck, NASA, PACCAR, Roche, Saudi Aramco, Stanford University, Toyota, Van Andel and Volvo. Bright partners with Amazon, Cray, Dell, Intel, Nvidia, SGI, and other leading vendors to deliver powerful, integrated solutions for managing advanced IT infrastructure such as high performance computing clusters, big data clusters, and OpenStack-based private clouds. www.brightcomputing.com | $14.5M / Series B / Jul 28, 2014 | ||
| Polatis is a provider of optical switching technology. Founded in 2005 as the merger of leading optical technology companies from Cambridge Massachusetts and Cambridge UK, Polatis combined products, technologies and resources to create new solutions for modern fiber-based networks. | $2.7M / Feb 02, 2012 | ||
| Polatis is a provider of optical switching technology. Founded in 2005 as the merger of leading optical technology companies from Cambridge Massachusetts and Cambridge UK, Polatis combined products, technologies and resources to create new solutions for modern fiber-based networks. | $8M / Jun 02, 2009 | ||
| Polatis is a provider of optical switching technology. Founded in 2005 as the merger of leading optical technology companies from Cambridge Massachusetts and Cambridge UK, Polatis combined products, technologies and resources to create new solutions for modern fiber-based networks. | $1.1M / Jul 29, 2005 |
Co-Investors
About Molten Ventures
Molten Ventures is a leading British venture capital firm backing Europe’s highest-growth private technology companies. Our expert investment team stay ahead of the curve, identifying transformative trends and next-generation companies before they break through. We combine multiple pools of capital to invest at all stages of the businesslifecycle—from seed and early stage to growth and late stage—focusing on disruptive sectors like Spacetech, Fintech, and AI. Our strategy is simple: back bold ideas, scale them with capital and expertise, and unlock high-value exits—whether through strategic acquisitions, trade buy-outs, or IPOs. Since our 2016 IPO, we’ve delivered strong realised returns, reinvesting into the next wave of innovation—creating a virtuous cycle of growth and value.
Molten Ventures Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Alan Duncan
Venture Partner
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David Cummings
Partner
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George Chalmers
Principal
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Inga Deakin
Principal
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John Marsh
Senior Partner, Venture Capital
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FAQ
What does John Marsh invest in?
John Marsh invests primarily in Software, Information Technology and Legal startups, most often at Series A and Series B stage. Most of the 6 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 John Marsh?
Public channels for John Marsh 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 John Marsh last invest?
The most recent investment recorded for John Marsh closed in Jan 2023. Shizune tracks 6 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 Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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