Turnstone Capital Management

Turnstone Capital Management
We fund and develop disruptive technology ventures and infrastructure projects that drive the energy transition

Our Mission
We seek to make a significant and lasting impact with our investment and management activity. We seek to identify, fund, and develop select early stage technology ventures and infrastructure projects in partnership with management. 
Investment Focus
Technology Ventures
Turnstone sponsors bespoke investment partnerships in early stage ventures (Seed, A Round) developing disruptive technology with validated product - market fit.  Our current sector focus is AI Infrastructure and Applications, and Enterprise Software. 
Infrastructure Projects
We seek to develop and fund renewable energy projects that drive the  transition to a cleaner infrastructure for data centers, electric grid operators, and corporate entities. Current interests include energy storage projects, low temperature geothermal, and carbon capture processes.
Partnership Approach
Turnstone works closely with select management teams to provide strategic guidance and support. We assist management with: 
Growth Capital                      Corporate Development                          Project Financing                         Board Governance
Current & Past Portfolio Companies
EnerSmart Storage
EnerSmart Storage
California distributed energy storage developer, developing over 100MW of stand-alone BESS projects.
Homepage - Veritone
Veritone
Creators of "AiWare", a SaaS AI operating system that runs artificial intelligence applications.  IPO under symbol "VERI".
Meta - Shop MR, VR Headsets & AI Glasses
Luxexcel
Netherlands based, 3D Printing optics technology, applied toward VR headsets and eyeglasses. Acquired in 2022 by Meta ("META").
Morgan Solar
Morgan Solar
Energy optics and IoT technology company based in Toronto, Canada.
Google
dMarc Broadcasting
Ad serving technology company for the radio industry. Acquired by Alphabet ("GOOG").
Leadership
Marc J. La Magna, Managing Partner
Marc brings over 30 years of experience across venture capital, project finance, and alternative asset investing. Marc has led early stage investments in disruptive technology companies, held senior operating roles at EnerSmart Storage (Founder and Co-CEO) and Veritone (VP Corp Development), and held board of director positions at Luxexcel, Morgan Solar, EnerSmart Storage, and TruePath Wireless. Early career roles included investment management positions at J.P. Morgan, NationsBanc Montgomery Securities, and power project and leveraged finance positions at Prudential Investment Corporation in New York and London.
Marc graduated with a BA from Yale University, and received his MBA from the Amos Tuck School at Dartmouth, where he earned the Tuck Scholar distinction.
https://www.linkedin.com/in/marclamagna/

Contact Us
info@turnstonecapital.com                                                                    203.364.4163
Rowayton, Connecticut
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