Mark Friedgan

CEO @ NinjaHoldings | Digital Banking, Lending Products

📍 Evanston, Illinois, United States🔄 Updated September 2026💼 5 investments📅 15 years investing🗓 Last invested Jan 2026𝕏 @upgrade_to_unlock
Operator-angel🌍 United States
5
Total investments
3
Early stage
0
Mid stage
1
Late stage
15y
Years active

Portfolio

4 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Observer
2026
TerraFlow Energy designs and manufactures long-duration flow battery systems and integrated power solutions built to solve some of the toughest challenges in energy storage—power quality, uptime, grid reliability, and safety. Headquartered in Katy, Texas, we offer U.S.-made, non-toxic, and mined-material-free systems capable of 20,000 to 40,000 cycles, with no risk of thermal runaway. In addition to our core flow battery technology, we offer LDUPS™ (Long Duration Uninterrupted Power Supply) by TerraFlow Energy—an integrated system that pairs our batteries with a custom inverter/rectifier (patent in development) and delivers: • 10+ hours of uninterrupted power • Continuous power buffering and conditioning • Elimination of harmonic distortion • Seamless operation in parallel with generators • Reduced mechanical wear and outage risk Our solutions are ideal for data centers, AI compute, industrial operators, utilities, and grid infrastructure—especially in load-heavy, variable environments. Manufactured in the U.S. with domestically sourced materials, TerraFlow Energy is helping to power what’s next with safe, scalable, and resilient energy storage.
Board Observer
May 2025
Kolleno is a financial operations platform that brings together receivables, payments and reconciliation - all in one place. Ranked among the top 50 Softwares in Accounting & Finance by G2, the platform is built for and by finance professionals to automate and optimise finance back-office processes with highly customisable workflows. Kolleno simplifies the management of client payments, related communications, and financial reporting by keeping everything in sync - data, systems, and people. Powered by advanced AI capabilities, Kolleno pulls data from all incoming accounting systems, ERPs and CRMs, translating context-sensitive data into actionable insights. We foresee traditional finance operations transforming into seamless digital experiences for everyone involved – including CFOs, finance teams and their clients. Ultimately, Kolleno helps businesses to run everyday operations intelligently, freeing up resources to focus on higher-priority, growth-driving activities. For more information and to book a free consultation please visit www.kolleno.com or email us at hello@kolleno.com CAREERS We are always looking for talented people to join. Come work with us: https://www.kolleno.com/careers/
Board Member
Jan 2020
Tripment Health provides a diagnostic solutions platform to help care teams access affordable and quality ancillary services for their patients, simplifying providers workflows and improving the patient experience. Each year, more and more Americans go bankrupt trying to pay off their medical bills. Many of them insured. Increasingly opaque insurance coverage and higher deductibles are making healthcare for many Americans unaffordable and confusing, with many patients choosing to forgo care until an emergency. Tripment Health seeks to change this. We make getting care easy to navigate and take the guesswork out of billing, increasing compliance and decreasing admin burden. With an easy to navigate and transparent platform, seeking preventive and diagnostic medical care has never been easier. Our mission is to bring transparency to healthcare. In an industry ripe with confusion and opaqueness, we aim to bring clarity and peace of mind to patients and providers alike. No surprises. Just transparent care. To learn more, visit us at tripment.com or email us at info@tripment.com.
Co-founder and Executive Board Member
May 2012
Fundamental changes in the energy industry require, more than ever, the right choice of an energy supplier partner. Eligo Energy offers competitive products, innovative solutions and technology applications that will power the growth of your energy business. Eligo Energy is a leading retail electricity supplier based in Chicago. Eligo partners with preferred brokers and affiliates throughout the country. Our leadership in technology integration and innovative product offerings are now available to select partners. Alex Goldstein and Mark Friedgan started Eligo Energy LLC, an alternative energy retailer based in Chicago, in April 2012. Since then, Eligo Energy has emerged as one of the most innovative, fastest growing retail energy suppliers in the industry.
early stageUtilities
Experience · 7 entries
All (7)
Investments (4)
Founder (1)
Board (4)
2026
Board Observer
2026
TerraFlow Energy designs and manufactures long-duration flow battery systems and integrated power solutions built to solve some of the toughest challenges in energy storage—power quality, uptime, grid reliability, and safety. Headquartered in Katy, Texas, we offer U.S.-made, non-toxic, and mined-material-free systems capable of 20,000 to 40,000 cycles, with no risk of thermal runaway. In addition to our core flow battery technology, we offer LDUPS™ (Long Duration Uninterrupted Power Supply) by TerraFlow Energy—an integrated system that pairs our batteries with a custom inverter/rectifier (patent in development) and delivers: • 10+ hours of uninterrupted power • Continuous power buffering and conditioning • Elimination of harmonic distortion • Seamless operation in parallel with generators • Reduced mechanical wear and outage risk Our solutions are ideal for data centers, AI compute, industrial operators, utilities, and grid infrastructure—especially in load-heavy, variable environments. Manufactured in the U.S. with domestically sourced materials, TerraFlow Energy is helping to power what’s next with safe, scalable, and resilient energy storage.
2025
Board Observer
May 2025
Kolleno is a financial operations platform that brings together receivables, payments and reconciliation - all in one place. Ranked among the top 50 Softwares in Accounting & Finance by G2, the platform is built for and by finance professionals to automate and optimise finance back-office processes with highly customisable workflows. Kolleno simplifies the management of client payments, related communications, and financial reporting by keeping everything in sync - data, systems, and people. Powered by advanced AI capabilities, Kolleno pulls data from all incoming accounting systems, ERPs and CRMs, translating context-sensitive data into actionable insights. We foresee traditional finance operations transforming into seamless digital experiences for everyone involved – including CFOs, finance teams and their clients. Ultimately, Kolleno helps businesses to run everyday operations intelligently, freeing up resources to focus on higher-priority, growth-driving activities. For more information and to book a free consultation please visit www.kolleno.com or email us at hello@kolleno.com CAREERS We are always looking for talented people to join. Come work with us: https://www.kolleno.com/careers/
2020
Board Member
Jan 2020
Tripment Health provides a diagnostic solutions platform to help care teams access affordable and quality ancillary services for their patients, simplifying providers workflows and improving the patient experience. Each year, more and more Americans go bankrupt trying to pay off their medical bills. Many of them insured. Increasingly opaque insurance coverage and higher deductibles are making healthcare for many Americans unaffordable and confusing, with many patients choosing to forgo care until an emergency. Tripment Health seeks to change this. We make getting care easy to navigate and take the guesswork out of billing, increasing compliance and decreasing admin burden. With an easy to navigate and transparent platform, seeking preventive and diagnostic medical care has never been easier. Our mission is to bring transparency to healthcare. In an industry ripe with confusion and opaqueness, we aim to bring clarity and peace of mind to patients and providers alike. No surprises. Just transparent care. To learn more, visit us at tripment.com or email us at info@tripment.com.
2012
Co-founder and Executive Board Member
May 2012
Fundamental changes in the energy industry require, more than ever, the right choice of an energy supplier partner. Eligo Energy offers competitive products, innovative solutions and technology applications that will power the growth of your energy business. Eligo Energy is a leading retail electricity supplier based in Chicago. Eligo partners with preferred brokers and affiliates throughout the country. Our leadership in technology integration and innovative product offerings are now available to select partners. Alex Goldstein and Mark Friedgan started Eligo Energy LLC, an alternative energy retailer based in Chicago, in April 2012. Since then, Eligo Energy has emerged as one of the most innovative, fastest growing retail energy suppliers in the industry.
early stageUtilities
2011
Catapult Fund
Founding Partner
Nov 2011
Show all 7 entries ↓
Investment activity
2011–2026 · 5 investments
2011120121202012025120261
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