ai-operating-system
(8)
Danyal Özdüzenciler
Danyal Özdüzenciler is the co-founder and CEO of Capsa AI, a London- and New York-based startup building what it calls an AI operating system for the private capital industry. A former private equity and investment banking professional with Turkish-German roots, he founded Capsa AI in 2024 with Callum Downie after a first failed startup taught him hard lessons about grit. In June 2026 the company raised an $18m Series A, bringing total funding to about $20m, on the back of 14x year-on-year revenue growth and a 100% customer renewal rate.
Evan Brown
Evan Brown is the CEO and co-founder of Rebar, a New York vertical-AI company building an operating system for the HVAC, electrical, and plumbing trades. Rebar's platform reads blueprints and spec books, pulls out tens of thousands of data points per project, and turns estimating and quoting work that once took days into a task of minutes. Brown grew up in his uncle's HVAC supplier office and later spent years as an estimator and sales engineer before starting Rebar in October 2024 with Andrew Schwartz. In March 2026 the company closed a $14M Series A led by Prudence.
George Eliadis
George Eliadis is the co-founder and CEO of Probook, a New York based company building an AI operating system for home services businesses such as HVAC, plumbing, and electrical contractors. A 24-year-old Wharton graduate who spent six summers pressure washing homes in upstate New York with his father, he started Probook to fix the operational problems he lived through in the field. In June 2026 the company raised a $40 million round, combining a $34 million Series A led by Andreessen Horowitz and a $6 million seed led by Sequoia Capital, and it now serves hundreds of clients across more than 35 states.
Bassam Chaptini
Bassam Chaptini is the co-founder and co-CEO of Avantos, a New York fintech building an AI-native operating system for client management in financial services. An MIT-trained AI PhD, former McKinsey partner, and founding CTO of no-code pioneer Unqork, he spent years watching banks and wealth managers drown in siloed client data. In 2024 he and co-founder Rabih Ramadi launched Avantos to fix it with a knowledge graph and AI agents that shadow advisors through onboarding, servicing, and growth. In February 2026 the company raised a $25M Series A led by Bessemer, with strategic backing from Vanguard, SEI, and Guardian Life.
Alex Leonardi
Alex Leonardi is the co-founder and CEO of VectorShift, a New York no-code AI automation platform that lets teams build enterprise-grade LLM applications, search engines, chatbots and workflows by dragging and dropping instead of coding. A Harvard statistics-and-computer-science graduate who built generative AI capabilities at Blackstone, he launched VectorShift in 2023 through Y Combinator's Summer 2023 batch and raised a $3M seed in February 2024. The company has since sharpened its focus into an AI operating system for private market investors.
Luke Zaientz
Luke Zaientz is the co-founder and CEO of OTTO SPORT AI, a Minneapolis-based startup building an AI-powered operating system for the messy, multi-billion-dollar world of youth sports. He has spent more than a decade turning the unglamorous back-office of clubs, leagues and tournaments into real businesses: he co-founded Reigning Champs (parent of NCSA College Recruiting), grew it past $200M in annual revenue through ten acquisitions, and saw it sell to IMG Academy and later to EQT in a deal valued at $1.2B. Before sports he co-founded RMG Networks and took it to IPO with Kleiner Perkins backing, and launched Match.com Events from zero to half a million attendees. In January 2026 OTTO SPORT AI launched with a $16.5M seed round co-led by Mamba Growth Equity and Rally Ventures, where Zaientz is also an operating partner.
Troy LeCaire
Troy LeCaire is the co-founder and CEO of GovWell, a New York startup building an AI operating system for local government - the permits, licenses, and inspections that quietly run a town. Before writing a line of code, he and CTO Ben Cohen cold-called hundreds of municipalities and lined up five paying customers. By 2026 GovWell served 130+ municipalities across 34 states and raised a $25M Series A led by Insight Partners, with zero churn on live customers and processing times cut by up to 95%.
Dylan Parker
Dylan Parker is the co-founder and CEO of Moment, the AI operating system for investment management. A former Citadel Securities and Jane Street fixed income quant, he and two Harvard friends set out to drag the $150-trillion bond market out of spreadsheets and chat threads. In under four years Moment went from $300 billion to over $10 trillion in client assets monitored and raised $134 million across three rounds, counting Edward Jones, LPL Financial, and Hightower Advisors as customers.