Alexander Rosen

Early stage technology investor in founder-led enterprise AI companies. 70+ investments, 26 exits, 8 unicorns, ~$40B in exit value

📍 San Francisco, California, United States🔄 Updated September 2026💼 20 investments📅 18 years investing🗓 Last invested Aug 2023𝕏 @upgrade_to_unlock
VC🌍 United States20+ investments
20
Total investments
13
Early stage
6
Mid stage
0
Late stage
18y
Years active

Portfolio

20 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Board Observer
Aug 2023
AI decisioning for the enterprise
Board Observer
Aug 2020
At Ontic, you’ll join a team driven by collaboration, innovation, and a shared sense of purpose. We work together to solve complex challenges, support one another’s growth, and create a workplace where everyone feels welcome and empowered to do their best work. Our team brings diverse backgrounds and fresh perspectives, united by a passion for making the world a safer place and helping our clients succeed. If you’re looking to make an impact, keep learning, and be part of a supportive, mission-driven team—Ontic might be the place for you. Ontic builds software that helps security professionals in both the private and public sectors protect people, places, and assets. Our platform unifies critical data, tools, and workflows so security teams can detect threats early, respond faster, and operate more effectively. We call this Connected Intelligence. Ontic has achieved "in process" status within the Federal Risk and Authorization Management Program (FedRAMP) and is now listed on the FedRAMP Marketplace. This marks an important step forward in our commitment to bring modern, connected, and data-driven security operations to U.S. government agencies. Explore our open roles and see where you might fit in: https://bit.ly/4nmelWg
Seed Investor
Mar 2020
The NodeZero® platform empowers your organization to continuously find, fix, and verify your exploitable attack surface. Reduce your security risk by autonomously finding weaknesses in your network, knowing how to prioritize and fix them, and immediately verifying that your fixes work. NodeZero delivers production-safe autonomous pentests and other key assessment operations that scale across your largest internal, external, cloud, and hybrid cloud environments. No required agents, no code to write, and no consultants to hire. We are a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. Were committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants.
Seed Investor
Feb 2019
MaintainX is the leading maintenance and work execution software, designed specifically for industrial and frontline teams. We help companies streamline maintenance operations, improve asset management, and empower workers—all while delivering insights that can improve your bottom line. As a mobile-first platform, MaintainX delivers a modern, IoT-enabled solution for maintenance, reliability, and operations teams trusted by over 8k companies worldwide. If you’re looking for an AI-enabled CMMS solution that’s easy to use and implement, look no further. The MaintainX platform manages millions of work orders and assets, and is used by more than 500K frontline professionals globally. We help customers reduce unplanned downtime and increase asset availability, while meeting complex compliance needs and keeping workers safe. Ready to ditch the clipboard? Heres what we can help your team digitize: -Maintenance Work Orders -Preventive Maintenance -Safety Procedures -Safety and Environmental Audits -Multi-site Reporting -IoT & ERP Integrations -Auditing/Inspection Workflows -Training Checklists -Parts Order Management & Vendor Connections We’re proud to serve some of the world’s largest brands, including Duracell, AB InBev, Univar, Cintas, McDonalds, Titan America, and many more. To learn more, please visit www.maintainx.com
Board Member
Jan 2018
Outlier shut down in 2022, this page remains as a memory of our company and on the resumes of our team. Business intelligence is ready for a change. We dont believe the world needs any more dashboards, charts or data warehouses. What leaders need today is help to make better use of the tools they already have. That is what we do at Outlier: we improve the relationship between people and their data. We believe that success in life and success in business are not separate things, but intertwined as part of our lives. It is important to us that the journey we take with our company is as positive as the destination we hope to reach.
Board Member
Mar 2017
SafeGraph is a data company. Thats it - thats all we do. We predict the past. SafeGraphs mission is to democratize access to data. SafeGraphs five year goal is to be THE source for accurate data about every physical place in the world. SafeGraph builds truth sets for machine learning, deep learning, and AI. SafeGraph is unlocking the worlds most powerful data so that machines and humans can answer societys toughest questions.
Board Member
Jan 2017
WorkTango is an award-winning Employee Experience platform that helps leaders and organizations improve employee engagement, increase retention, and boost performance while reducing costs with Employee Surveys and Recognition & Rewards software.
Board Member
Jan 2017
Kazoo is an all-in-one Employee Experience platform that combines recognition, performance, and engagement in one powerful solution. By bringing together Real-time Recognition & Rewards, Continuous Performance Management, and Employee Engagement Surveys, Kazoo’s employee-first solution enables companies to build purpose-driven cultures while increasing productivity, retention, and revenue. With over 600 global customers, the Kazoo platform puts actionable analytics in the hands of business leaders, connecting them to what really matters. Kazoo is when work is working.
Board Observer
Feb 2015
Airwall is the zero-trust software-defined perimeter for all your things multi-factor authenticated, micro-segmented, encrypted end-to-end, & impervious to lateral movement. www.tempered.io
Investor and Board Observer
Sep 2014
Get more powerful websites and applications with Fastly’s edge cloud platform. We help places like Reddit, Pinterest, Stripe, Neiman Marcus, The New York Times, Epic Games, and GitHub do so every day.
Board Member
Apr 2014
Welcome to Chubbies. Here is what we believe. We believe in the weekend We believe that “short shorts” is a redundancy We believe in swim trunks, swim shorts, bathing suits, swim suits or whatever the heck else you wanna call ‘em because we believe that if you’ve got a pair of those on, well, you must be doing something right We believe in the right your quads have to a life of freedom and sunshine We believe in comfort We believe in our fathers - they led the way; we are but revolutionaries standing on the shoulders of amazingly mustachio’d giants in proper length shorts We believe sweat shorts are the greatest innovation in lounging since hammock cup holders were invented in the early 1780s We believe Black Lives Matter We believe Love is Love And we damn sure believe in Friday at Five Onward to the Weekend > -Team Chubbies
Investor
Jun 2013
Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from any source, so they can creatively engage with customers in real time, across channels from one platform. From cross-channel messaging and journey orchestration to Al-powered experimentation and optimization, Braze enables companies to build and maintain absolutely engaging relationships with their customers that foster growth and loyalty. The company has been recognized as a 2024 U.S. News & World Report Best Companies to Work For, 2024 Best Small & Medium Workplaces in Europe by Great Place to Work®, 2024 Fortune Best Workplaces for Women™ by Great Place to Work® and was named a Leader by Gartner® in the 2024 Magic Quadrant™ for Multichannel Marketing Hubs and a Strong Performer in The Forrester Wave™: Email Marketing Service Providers, Q3 2024. Braze is headquartered in New York with 15 offices across AMER, LATAM, EMEA, and APAC. Learn more at braze.com.
Investor
Jun 2013
Braze is the leading customer engagement platform that empowers brands to Be Absolutely Engaging.™ Braze allows any marketer to collect and take action on any amount of data from any source, so they can creatively engage with customers in real time, across channels from one platform. From cross-channel messaging and journey orchestration to Al-powered experimentation and optimization, Braze enables companies to build and maintain absolutely engaging relationships with their customers that foster growth and loyalty. The company has been recognized as a 2024 U.S. News & World Report Best Companies to Work For, 2024 Best Small & Medium Workplaces in Europe by Great Place to Work®, 2024 Fortune Best Workplaces for Women™ by Great Place to Work® and was named a Leader by Gartner® in the 2024 Magic Quadrant™ for Multichannel Marketing Hubs and a Strong Performer in The Forrester Wave™: Email Marketing Service Providers, Q3 2024. Braze is headquartered in New York with 15 offices across AMER, LATAM, EMEA, and APAC. Learn more at braze.com.
Board Member
May 2013
Uplift is the leading Buy Now, Pay Later solution serving the world’s top enterprise brands. Through personalized, flexible payment options, Uplift helps people get more out of life, one thoughtful purchase at a time. Uplift’s enterprise-ready offer engine matches consumers with the right payment plan at the right time, helping brands unlock higher conversion while building customer loyalty. Uplift’s complete range of flexible payment solutions are offered by leading brands throughout the United States and Canada.
Board Member
Mar 2013
The first video content exchange for syndication that matches content sellers with content buyers in a programatic, streamlined Saas based platform. Vidible delivers the professional quality video content to the right context or audience at a transparent price in real time across multiple devices.
Show all 20 investments ↓
Experience · 24 entries
All (24)
Investments (20)
Founder (1)
Board (15)
2023
Board Observer
Aug 2023
AI decisioning for the enterprise
2020
Board Observer
Aug 2020
At Ontic, you’ll join a team driven by collaboration, innovation, and a shared sense of purpose. We work together to solve complex challenges, support one another’s growth, and create a workplace where everyone feels welcome and empowered to do their best work. Our team brings diverse backgrounds and fresh perspectives, united by a passion for making the world a safer place and helping our clients succeed. If you’re looking to make an impact, keep learning, and be part of a supportive, mission-driven team—Ontic might be the place for you. Ontic builds software that helps security professionals in both the private and public sectors protect people, places, and assets. Our platform unifies critical data, tools, and workflows so security teams can detect threats early, respond faster, and operate more effectively. We call this Connected Intelligence. Ontic has achieved "in process" status within the Federal Risk and Authorization Management Program (FedRAMP) and is now listed on the FedRAMP Marketplace. This marks an important step forward in our commitment to bring modern, connected, and data-driven security operations to U.S. government agencies. Explore our open roles and see where you might fit in: https://bit.ly/4nmelWg
Seed Investor
Mar 2020
The NodeZero® platform empowers your organization to continuously find, fix, and verify your exploitable attack surface. Reduce your security risk by autonomously finding weaknesses in your network, knowing how to prioritize and fix them, and immediately verifying that your fixes work. NodeZero delivers production-safe autonomous pentests and other key assessment operations that scale across your largest internal, external, cloud, and hybrid cloud environments. No required agents, no code to write, and no consultants to hire. We are a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. Were committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants.
2019
Seed Investor
Feb 2019
MaintainX is the leading maintenance and work execution software, designed specifically for industrial and frontline teams. We help companies streamline maintenance operations, improve asset management, and empower workers—all while delivering insights that can improve your bottom line. As a mobile-first platform, MaintainX delivers a modern, IoT-enabled solution for maintenance, reliability, and operations teams trusted by over 8k companies worldwide. If you’re looking for an AI-enabled CMMS solution that’s easy to use and implement, look no further. The MaintainX platform manages millions of work orders and assets, and is used by more than 500K frontline professionals globally. We help customers reduce unplanned downtime and increase asset availability, while meeting complex compliance needs and keeping workers safe. Ready to ditch the clipboard? Heres what we can help your team digitize: -Maintenance Work Orders -Preventive Maintenance -Safety Procedures -Safety and Environmental Audits -Multi-site Reporting -IoT & ERP Integrations -Auditing/Inspection Workflows -Training Checklists -Parts Order Management & Vendor Connections We’re proud to serve some of the world’s largest brands, including Duracell, AB InBev, Univar, Cintas, McDonalds, Titan America, and many more. To learn more, please visit www.maintainx.com
2018
Board Member
Jan 2018
Outlier shut down in 2022, this page remains as a memory of our company and on the resumes of our team. Business intelligence is ready for a change. We dont believe the world needs any more dashboards, charts or data warehouses. What leaders need today is help to make better use of the tools they already have. That is what we do at Outlier: we improve the relationship between people and their data. We believe that success in life and success in business are not separate things, but intertwined as part of our lives. It is important to us that the journey we take with our company is as positive as the destination we hope to reach.
Show all 24 entries ↓
Investment activity
2008–2023 · 20 investments
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