Top Tech Startups in San Diego, CA in 2026

Through the development of a first of its kind open platform, Platform Science provides the hardware and software that allows clients to fully capture, analyze and apply a wealth of data, dramatically increasing performance, compliance, time management and savings.

Cher® is revolutionizing real estate by empowering Realtors and homebuyers through innovation, education, and cutting-edge tools. As the first-to-market leader in co-ownership and gamified homebuyer education, we’re transforming the industry with engaging platforms that reward Realtors and homebuyers for progress and achievement. For Realtors, Cher® offers warm leads, personalized marketing resources, and opportunities to grow their business while earning rewards through our unique gamification system. For homebuyers, we simplify the path to homeownership with tailored courses, expert guidance, and co-ownership solutions, making real estate more accessible and exciting. At Cher®, we blend technology, education, and collaboration to create opportunities for success, rewarding milestones along the way. Join us in transforming the real estate experience for Realtors, homebuyers, and communities alike.

Pair Team is on a mission to build the primary care infrastructure for America’s most vulnerable communities. They are the first tech-enabled care team that empowers safety-net primary care systems and the Medicaid & Medicare patients they serve. They act as an extension of the clinical staff to provide a personalized, high-touch care experience while addressing patients' barriers to care such as lack of transportation, housing/food insecurity, and mobile phone access. Internally, they are building a unique care delivery platform to ensure clinical best practices, integrate care with community-based organizations, and automate administrative work so that clinicians can focus on time with our patients.

At Housecall Pro, we're focused on making the everyday lives of home services professionals better by helping them to incorporate mobile software into their workflow. The home services industry remains vast ($700b+) but untouched by technology and unencumbered by a dominant competitor. The 3M+ mobile businesses in home services are facing dramatic change as the world shifts from offline to online. Along this journey, we are quickly becoming the backbone operating system for service labor across the US and Canada. We’ve rocketed from MVP to the #1 ranked SaaS software platform in just over 2 years.

DISCO is the leading provider of ediscovery solutions for law firms, corporations, and government agencies. With technology and services that automate and simplify complex and error-prone tasks that distract from practicing law, DISCO empowers lawyers and their teams to effectively manage discovery processes. DISCO is the ediscovery choice of leading U.S. law firms including litigation boutiques and AmLaw, Fortune 500 companies, as well as government agencies around the world. Ready for an ediscovery upgrade? Request a demo at demo.csdisco.com.

Chowbus is a food ordering platform which curates featured dishes from selected ethnic restaurants daily and delivers them fresh and hot to your home or office affordably with the tap of your cell phone. We provide dish-centric mobile ordering experience for consumers to easily explore and order authentic ethnic food and we empower local ethnic restaurants with the technology, tools, and marketing to grow their business.

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.

Amazon is guided by four principles: customer obsession rather than competitor focus, passion for invention, commitment to operational excellence, and long-term thinking. We are driven by the excitement of building technologies, inventing products, and providing services that change lives. We embrace new ways of doing things, make decisions quickly, and are not afraid to fail. We have the scope and capabilities of a large company, and the spirit and heart of a small one. Together, Amazonians research and develop new technologies from Amazon Web Services to Alexa on behalf of our customers: shoppers, sellers, content creators, and developers around the world. Our mission is to be Earth's most customer-centric company. Our actions, goals, projects, programs, and inventions begin and end with the customer top of mind. You'll also hear us say that at Amazon, it's always "Day 1."​ What do we mean? That our approach remains the same as it was on Amazon's very first day - to make smart, fast decisions, stay nimble, invent, and focus on delighting our customers.

Dreamers is a research, data science, and tech consultancy that specializes in building solutions for complex problems. We are based in sunny California, but work remotely with clients from all over the world. We’re engineer-owned and operated, meaning you’ll get personal attention and quick answers without having to bushwhack through obfuscating layers of management.

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!