4
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0
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2
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0
Late stage
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Years active
Portfolio
3 investments · sorted by recency
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Angel Investor
Jun 2025
Recognizing the need for evolution in the hospitality industry, Dorsia leverages technology to create better experiences for operators and members alike. Members undergo a selective application process to gain access to Dorsia. Tastemakers, creatives, and avid travelers—our community values access to premium experiences, from dining to clubbing.
Dorsia crafts seamless experiences for our membership community while also empowering operators through dynamic pricing and predictive analytics. By bridging the gap between members and operators, Dorsia ensures better outcomes for both parties.
Members enjoy exclusive access to coveted reservations and enhanced dining experiences, while operators gain greater control and revenue optimization. Dorsia isn’t just a tech solution, it’s a transformative force reshaping the future of dining through collaboration and innovation.
Founded by visionary entrepreneur Marc Lotenberg, Dorsia has quickly become a disruptor in the hospitality industry, leveraging technology to bridge the gap between operators and consumers.
Investor
Jun 2024
At Kitchen Sink Ventures, we invest in pre-seed companies led by gritty, resilient founders who are committed to their vision. I focus on businesses that benefit founders, stakeholders, and the world, aligning with my goal of driving growth while creating meaningful impact. My investments support companies that prioritize well-being and contribute positively to society, offering capital, guidance, and mentorship to build a better, profitable future.
Experience · 7 entries
All (7)
Investments (4)
Founder (3)
2025
Angel Investor
Jun 2025
Recognizing the need for evolution in the hospitality industry, Dorsia leverages technology to create better experiences for operators and members alike. Members undergo a selective application process to gain access to Dorsia. Tastemakers, creatives, and avid travelers—our community values access to premium experiences, from dining to clubbing.
Dorsia crafts seamless experiences for our membership community while also empowering operators through dynamic pricing and predictive analytics. By bridging the gap between members and operators, Dorsia ensures better outcomes for both parties.
Members enjoy exclusive access to coveted reservations and enhanced dining experiences, while operators gain greater control and revenue optimization. Dorsia isn’t just a tech solution, it’s a transformative force reshaping the future of dining through collaboration and innovation.
Founded by visionary entrepreneur Marc Lotenberg, Dorsia has quickly become a disruptor in the hospitality industry, leveraging technology to bridge the gap between operators and consumers.
Co-Founder
Jan 2025
TimelyAI is building a Marketing Saas for Time-based Businesses.
“The idea is to solve the most burning need of our customers- Growing their clientele at an affordable price and being able to build lasting relationships with them for repeat business and referrals.”
"Coming soon with something extremely crazy!"
2024
Investor
Jun 2024
At Kitchen Sink Ventures, we invest in pre-seed companies led by gritty, resilient founders who are committed to their vision. I focus on businesses that benefit founders, stakeholders, and the world, aligning with my goal of driving growth while creating meaningful impact. My investments support companies that prioritize well-being and contribute positively to society, offering capital, guidance, and mentorship to build a better, profitable future.
Co-Founder
Jan 2024
River is building the infrastructure for the next billion people who live, move, and earn across borders. From telecom to money movement, we combine connectivity and financial access into one seamless platform — giving global citizens the freedom to call, transact, and grow from anywhere in the world.
Our Products:
Rivertel: Borderless mobile service, available in the US and globally
RiverPay: Multi-currency wallet, global remittances, crypto exchange, and yield savings
Coming Soon: Virtual bank accounts and debit cards that travel with you
Who We Serve:
Immigrants. Freelancers. Travelers. Remote workers. Digital nomads. Students. Anyone who crosses borders and needs systems that move with them.
Why River:
There are over a billion people in the world living across geographies, currencies, and communities — and existing systems were never built for them. We’re changing that. One app, one network, one River — for one billion lives.
Headquarters: Madison Avenue, New York
Global Presence: Operating in 40+ countries
Website: www.river.app
2022
Angel Investor
Jan 2022
SpaceX designs, manufactures and launches the world’s most advanced rockets and spacecraft. The company was founded in 2002 by Elon Musk to revolutionize space transportation, with the ultimate goal of making life multiplanetary.
SpaceX has gained worldwide attention for a series of historic milestones. It is the only private company ever to return a spacecraft from low-Earth orbit, which it first accomplished in December 2010. The company made history again in May 2012 when its Dragon spacecraft attached to the International Space Station, exchanged cargo payloads, and returned safely to Earth — a technically challenging feat previously accomplished only by governments. Since then Dragon has delivered cargo to and from the space station multiple times, providing regular cargo resupply missions for NASA.
For more information, visit www.spacex.com.
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Investment activity
2021–2025 · 4 investments
Recent (last 2 years)Earlier