Top Tech Startups in San Diego County, US in 2026

Opal Security is intelligent access management that empowers enterprises to move fast while staying secure. Our mission is to bring clarity, control, and confidence to complex enterprise environments, helping teams govern access without slowing down innovation.

Vannevar Labs builds software for the country's most critical national security problems. We are uniquely qualified to succeed in this $740B market; our founders have 30 years of combined experience across national security, government sales and CIA, In-Q-Tel, DoD/JSOC, Harvard, and Stanford. We're supported by a number of VCs, including Felicis, DFJ Growth, Point72, Costanoa, and General Catalyst, amongst others. We believe our military service members and intelligence officers deserve access to the best technology American innovation can offer, and we are building great products for this mission. If you're someone who wants to work with conscientious people on things that matter, we'd love to hear from you!

Archesys provides a wide range of technical services and has been doing so for over 20 years, making a significant impact in the areas of organization, culture, and technology in both the private and public sectors. From digital modernization to process management, our team is the go-to resource for various government agencies looking to improve or overhaul their operations.

LawnStarter is an online platform for outdoor home services. Our user-friendly app connects outdoor service pros with homeowners in 120 U.S. markets. Through technological innovation and top-tier talent management, LawnStarter has experienced exponential growth. As the name suggests, we began as a lawn care marketplace but have expanded into other vertices, including: Pest control Pool care Gutter cleaning Tree care Roofing

OFFER1 is revolutionizing the residential real estate market with a cutting-edge, mobile-friendly platform designed to address inefficiencies in the traditional offer process. Utilizing smart contract technology, OFFER1 enhances transparency, efficiency, and consistency, allowing agents to manage and negotiate offers effortlessly from any device. This innovative approach not only saves significant time and money for agents and sellers by streamlining transactions but also ensures that every offer is clearly communicated and fairly considered. In multiple offer situations, OFFER1 introduces auction dynamics, enabling home sellers to maximize their returns through a competitive and transparent bidding environment. The platform's user-friendly interface provides all parties with a clear view of offer details, fostering better decision-making and satisfaction. OFFER1 is not just a tool but a transformative solution, crafted to benefit everyone involved in the real estate transaction process, promoting a more organized and profitable real estate marketplace.

Victorise creates hardware and software solutions to help athletes train and perform better. Our Race Companion (Data Analytics, Wearable and Augmented Reality) allows competitive athletes to create and share Race Plans. Our users can select the data that matters for them in order to create a custom Heads Up Display.

We do: -Peer learning -Mentor learning -Curriculum and resource curation -Technology -Retreats -Other experiences

PatientPop is a fast-growing healthcare technology company with $75 million in funding. PatientPop has one simple mission: to help healthcare practices thrive. We do this by giving providers everything they need attract and recall patients to continuously grow their practices. With PatientPop, providers can attract more patients, manage online reputation, modernize the patient experience, and automate the front office — all without sacrificing quality patient care. We've helped thousands of providers since our founding in 2014. Along the way, we cultivated an incredible work environment — one of the best, according to Great Place to Work.

Company Overview (Who are we? Why should you join us?) At ecoATM the proof of our success is in our staggering growth, extraordinary impact on protecting the planet, and providing a work culture unlike any other. We are a technology company and a pioneer of device re-commerce. Through our 5500+ automated kiosks and online marketplace Gazelle.com, we enable people all over the world to join the mobile device re-use revolution, a revolution that will get billions of used smartphones out of the e-waste cycle and into the hands of people who don’t have affordable access to the empowerment of the latest mobile technology. At ecoATM we know our employees are our greatest strength and the key to our continued growth and success. When you join our team, you will enjoy more than just a job, you will be empowered to develop and utilize your unique talents and skills to build a rewarding career while making a lasting, positive impact on the planet.