“A life saver on numerous occasions. Steve's expertise revolutionized the way we processed and evaluated candidates this year and took us to a different level. If I was allowed to pick more than 3 attributes (above), I would also add that Steve is personable, reliable, trustworthy and a problem solver.”
Stephen Marcus
Los Angeles County, California, United States
4K followers
500+ connections
4K followers
500+ connections
About
Steve is Co-Founder and Managing General Partner at Riot Ventures, a Los Angeles based…
Activity
-
Announcing Fambot Beta - and opening up 500 free spots for families. We built Fambot to help parents never miss what matters. Sometimes that means…
Announcing Fambot Beta - and opening up 500 free spots for families. We built Fambot to help parents never miss what matters. Sometimes that means…
Liked by Stephen Marcus
-
Valar Atomics is looking for builders. Our work is difficult, high pace, and rooted in the phsycial world: we built our first reactor in less than 2…
Valar Atomics is looking for builders. Our work is difficult, high pace, and rooted in the phsycial world: we built our first reactor in less than 2…
Liked by Stephen Marcus
-
So proud of my team, and grateful for the leadership of the DOE and POTUS. This is not a normal DSA. Power is a different level—the volume and…
So proud of my team, and grateful for the leadership of the DOE and POTUS. This is not a normal DSA. Power is a different level—the volume and…
Liked by Stephen Marcus
Experience
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Education
-
MIT Sloan School of Management
-
-
Activities and Societies: Co-President, MIT Venture Capital & Private Equity Club, Co-Founder, MIT Startups, Chairman, MIT Venture Capital Competition, Teaching Assistant for Designing & Leading the Entrepreneurial Organization (Professor M. Diane Burton)
-
-
-
Languages
-
English
Native or bilingual proficiency
-
Spanish
Limited working proficiency
Recommendations received
10 people have recommended Stephen
Join now to viewMore activity by Stephen
-
Congratulations to Brandon Tseng Ryan Tseng 🇺🇸 Gary Steele and the entire Shield AI team. This company is just getting started.
Congratulations to Brandon Tseng Ryan Tseng 🇺🇸 Gary Steele and the entire Shield AI team. This company is just getting started.
Liked by Stephen Marcus
-
Congratulations to my partners at Eclipse, with a special shout out to Seth Winterroth. We’ve partnered with Eclipse since True Anomaly’s Series A…
Congratulations to my partners at Eclipse, with a special shout out to Seth Winterroth. We’ve partnered with Eclipse since True Anomaly’s Series A…
Liked by Stephen Marcus
-
We're proud to support Aethero, ARQUIMEA, Planetek Hellas, and SpaceLocker in deploying their innovation to space. Separation confirmed and…
We're proud to support Aethero, ARQUIMEA, Planetek Hellas, and SpaceLocker in deploying their innovation to space. Separation confirmed and…
Liked by Stephen Marcus
-
Incredible ride -- very fortunate to work with this team!
Incredible ride -- very fortunate to work with this team!
Shared by Stephen Marcus
-
Today, we announced that Aechelon Technology Inc., one of the most trusted simulation companies in defense, will join Shield AI. It’s an exciting…
Today, we announced that Aechelon Technology Inc., one of the most trusted simulation companies in defense, will join Shield AI. It’s an exciting…
Liked by Stephen Marcus
-
Excited to officially announce the launch of Pax Fund I, a $50M early stage vehicle dedicated to founders transforming the foundational categories of…
Excited to officially announce the launch of Pax Fund I, a $50M early stage vehicle dedicated to founders transforming the foundational categories of…
Liked by Stephen Marcus
-
Pierre Lamond is unlike anyone I've ever worked with. At 84, he reinvented his career for the 5th time. At 95, he still hasn’t stopped. Five or six…
Pierre Lamond is unlike anyone I've ever worked with. At 84, he reinvented his career for the 5th time. At 95, he still hasn’t stopped. Five or six…
Liked by Stephen Marcus
-
This is a train being built in seconds. No yard. No mechanical coupling. Two autonomous vehicles align bumper to bumper and instantly form a…
This is a train being built in seconds. No yard. No mechanical coupling. Two autonomous vehicles align bumper to bumper and instantly form a…
Liked by Stephen Marcus
-
Monday I was in Denver with True Anomaly as they hosted Secretary of War Pete Hegseth for the Arsenal of Freedom tour. A 3.5 year old company…
Monday I was in Denver with True Anomaly as they hosted Secretary of War Pete Hegseth for the Arsenal of Freedom tour. A 3.5 year old company…
Liked by Stephen Marcus
-
Epic day at True Anomaly. Thank you to Pete Hegseth and the United States Department of War for taking time to rally the troops.
Epic day at True Anomaly. Thank you to Pete Hegseth and the United States Department of War for taking time to rally the troops.
Liked by Stephen Marcus
-
Incredibly proud to unveil our first nuclear site to the world: Valar Atomics at San Rafael.
Incredibly proud to unveil our first nuclear site to the world: Valar Atomics at San Rafael.
Liked by Stephen Marcus
-
This one means a lot to me. Nearly three years ago, the U.S. Air Force made a bold decision on the Collaborative Combat Aircraft program: bifurcate…
This one means a lot to me. Nearly three years ago, the U.S. Air Force made a bold decision on the Collaborative Combat Aircraft program: bifurcate…
Liked by Stephen Marcus
-
Today, the Department of War will execute Operation Windlord, the first C-17 airlift of a nuclear reactor, in partnership with the Department of…
Today, the Department of War will execute Operation Windlord, the first C-17 airlift of a nuclear reactor, in partnership with the Department of…
Liked by Stephen Marcus
-
Congratulations to Integrate on announcing their $17M Series A 👏 excited to partner with FPV Ventures, FUSE, Rsquared, NewVista Group, and…
Congratulations to Integrate on announcing their $17M Series A 👏 excited to partner with FPV Ventures, FUSE, Rsquared, NewVista Group, and…
Liked by Stephen Marcus
Explore more posts
-
James Bruegger
Great to see more strong momentum from the Seraphim Space portfolio: 📌 ALL.SPACE signs MoU with Telesat to bring its multi-orbit terminals onto the Lightspeed LEO network. https://lnkd.in/egwnyjxA 📌 Voyager Technologies invests in Latent AI, expanding its dual-use capabilities at the intersection of national security and the commercial space economy. https://lnkd.in/eMZHankp Two portfolio companies leading the way in building the resilient infrastructure of the future space economy. #SeraphimSpace #DualUse #SpaceTech #Investment
1 Comment -
James Bruegger
If you haven’t been following Pixxel's incredible few weeks, here’s our latest blog to help get you up to speed: https://lnkd.in/eb3Xikvb TL;DR 👇 Pixxel has doubled its Firefly constellation to six operational satellites following its latest SpaceX launch. The Firefly satellites deliver hyperspectral imagery that turns the invisible into actionable intelligence. Use cases range from preventing illegal mining to strengthening climate resilience. This milestone cements Pixxel, a Seraphim portfolio company, as a leader in space-based Earth intelligence. With daily hyperspectral looks at any point on the planet, Pixxel is making the invisible visible, and in doing so, unlocking both commercial opportunity and societal value. #SeraphimSpace #DualUse #SpaceTech #EarthObservation #ClimateTech #Hyperspectral #SpaceEconomy #Satellites
-
Kelly M.
a16z leading Chariot's Series A marks the end of the traditional prime contractor era and the beginning of the kinetic-AI integration layer. For allocators the real alpha isn't in the drone itself but in the resilient orchestration of autonomous systems across contested environments. Capital is finally pricing in sovereignty as a permanent infrastructure asset class rather than a cyclical geopolitical hedge. #DefenseTech #SovereignInfra #CapitalAllocation #ChariotDefense #a16z #AutonomousSystems #NationalSecurity #DualUseTech #InfrastructureAlpha #2026InvestmentLogic
-
Robert Mehler
Strategic Consolidation in Defense Tech: A Signal, Not an Isolated Deal The recent acquisition of Spear UAV by Uvision a full-ownership consolidation after leading a strategic financing round underscores a deeper structural shift in defense tech markets. What might look like another M&A headline is really a multidimensional signal about how tomorrow’s battlefield tech economy is evolving: Capability integration over point solutions. Uvision’s move to absorb this capability expands its reach across swarms, multi-domain penetration, and heterogeneous launch environments. From units to ecosystems. Traditional unmanned systems markets are fragmenting into layered operational ecosystems: loitering munitions, autonomous launch vectors, and intelligent deployment platforms. Integration bets like this acquisition are instruments for building composable defense stacks rather than single-product portfolios. Consolidation as a response to demand acceleration. Sustained operational demand and geopolitical pressure are forcing established players to accelerate capability breadth and depth. Winning tech in one niche isn’t enough; leaders are integrating adjacent domains (naval, ground, air) to secure comprehensive solutions. Implications for investors & founders. This isn’t merely about exits: it’s about architecting durable, interoperable capability chains that can scale globally. For VC portfolios, it reframes diligence toward: • Systems that can plug into multi-domain operations • IP that materially enhances platform value when recombined • Founders building with acquisition synergies in mind At OpImpact.fund, we see this as part of a larger thematic arc: defense tech is consolidating around networked lethality and modular deployment, not standalone widgets. Deals like this are the market shouting that integration, interoperability, and scalability are the currencies of value creation in 21st century defense. Article: https://lnkd.in/dAiP9shB #DefenseTech #DefenseInnovation #DualUse #MilTech #AerospaceDefense #UnmannedSystems #AutonomousSystems #LoiteringMunitions #ISR #MultiDomainOperations #DefenseM&A #StrategicConsolidation #VCInsights #VentureCapital #NationalSecurity #Geopolitics #OpImpactFund
-
Avery E. Schwartz
Worth the read! Commcrete is breaking SATCOM tradeoffs at a time when governments are prioritizing resilient communications as a foundational layer for autonomy, electronic-warfare resilience, and distributed command & control, while commercial operators in aviation, shipping, energy, and transportation face similar requirements as their operations digitize and move beyond terrestrial coverage. Raz Mangel | Meir Cohen | Greenfield Partners
-
Maggie Sprenger
Our portco Latent AI is partnering with Voyager Technologies to advance the future of edge AI. This collaboration brings together Latent AI’s leading capabilities in efficient, adaptive AI models with Voyager’s expertise in autonomous systems and mission-critical technologies. Together they will unlock new possibilities for deploying AI at the tactical edge.
1 Comment -
Elisha Tropper
SpaceX and Elon Musk are seeking to solve the impending AI data storage bottleneck problem by launching up to a million solar-powered satellites. They will be well-served to contact Lior Bar-Shalom of Arbell Energy LTD, whose revolutionary technology doubles the efficiency of current solar energy capture. Just this past week, Arbell - a recent graduate of CREATION-SPACE's Expand accelerator - won the Audience Choice Award at Israel Space Forum's IL Space Pitch 2026 in Tel Aviv. #solarenergy #Israelitech #startupnation #accesstospace #spacetech #ai #spacex #energyefficiency https://lnkd.in/eZJkaYC5
6 Comments
Explore top content on LinkedIn
Find curated posts and insights for relevant topics all in one place.
View top contentOthers named Stephen Marcus
323 others named Stephen Marcus are on LinkedIn
See others named Stephen Marcus