Top Tech Startups in San Diego, CA in 2026

Pairing a first of its kind Brand Mix Model with hyper–efficient monetization strategy, Marathon drives critical actions that power long–term, resilient, profitable growth up and down the funnel — from a user's first interaction with your brand all the way through to customer advocacy. Built by exited founders whose brands have driven $B's of revenue and — most importantly — have delivered systematic top–line an bottom–line growth throughout their history

FairwAI is building real-time accountability infrastructure to detect bias in the moments that matter most. We’re solving one of the toughest challenges in tech: how to make fairness not just a principle but a system. From healthcare and hiring to hospitality and housing, bias shows up when people are most vulnerable. FairwAI turns those moments into measurable, actionable data—using AI, computer vision, and behavioral science to flag risks and enable institutional change before harm happens. We’re not a DEI tool. We’re compliance infrastructure for a new era—where safety, dignity, and fairness are non-negotiable. Our team includes engineers, policy thinkers, civil rights advocates, and public interest technologists from MIT, Harvard, Stanford, The UN, and beyond. We’re launching high-impact projects and building the backbone of ethical AI adoption across sectors. For interns & fellows, this is not a coffee-run experience. You’ll co-design tools, analyze live scenarios, and help shape the future of bias detection and remediation. Your work will be mentored, respected, and turned into real-world impact. If you care about fairness, ethics, and building tools that actually change lives—FairwAI is where your skills meet purpose. Join us. Let’s build the infrastructure fairness deserves.

an online platform that utilizes the power of the community to make team sports (currently soccer) accessible and enjoyable for our users.

We’re a fast-growing hemp THC brand helping people access the highest quality products online. At PicaPuff, we’re passionate about crafting premium products that speak for themselves. We’ve built a world-class team dedicated to pushing boundaries, delivering quality, and creating an environment where excellence is the standard. We've just got up and running & we’re proud to be endorsed by some of the biggest names in the US such as NBA Youngboy, Lil Baby and many hip-hop icons. With massive celebrities standing behind our brand. From product to people, we don’t cut corners — we’re here to elevate the experience. Our mission is simple: make safe, effective THCa hemp products accessible and tailored to real-life needs—whether it’s managing chronic pain or enjoying a great night with friends. We’re a small, experienced team with deep roots in D2C and high-growth startups, including Y Combinator-backed companies. Our founders have scaled multiple consumer brands and know what it takes to build something lasting. We’re just getting started. With strong product-market fit and momentum on our side, we’re growing the team to help us build a generation-defining e-commerce company. We’re fully remote and hiring across US and EU time zones. Website: picapuff.com

Most healthcare decisions, behaviors, and adherence challenges happen outside the clinic, long after the visit ends. NuVee exists to support patients in that gap, translating medical guidance into real-world action. Koa, NuVee’s digital care partner, works alongside patients between visits, listening, educating, reinforcing care plans, and adapting support based on real-world context. Koa is designed to earn trust, encourage behavior change, and help patients stay engaged without replacing clinicians or becoming a medical device. NuVee partners with healthcare organizations, digital clinics, and life-science companies to improve engagement, persistence, and outcomes, delivering measurable impact within existing workflows.

The Following Films is a rising indie production company with an ambitious long-term vision: to create powerful independent films that scale into billion-dollar IP franchises. With projects already in motion, including The Following (shooting December 2025) and Only Love (a raw, human romance exploring homelessness in America), we are laying the foundation for a studio that will bridge intimate indie storytelling with the scope of global franchises.

Using Renewable Resources is More Important Than Ever With growing concerns about the future and security of the world’s energy supply, renewable resources such as solar power are becoming increasingly important. Various solar energy technologies have been used throughout human history. However, practical photovoltaics – the direct conversion of solar energy into electricity – has a history of only about 50 years. This field of study and the resulting industry have been rapidly growing and improving, becoming a significant part of our world’s energy supply. Solar Energy Solutions Grid Tied Systems that are connected to the utility grid and use Photovoltaic (PV) energy as a supplemental source of power offer the greatest flexibility. Being connected to the utility allows the consumer to choose how much supplemental power to derive from alternative sources such as PV systems. The supplemental power offsets a portion of the power needed from the utility, resulting in lower electricity bills. Off Grid The Mainstream consumer PV market essentially began with off grid residences. As systems have become more affordable, this application has become increasingly common among homeowners who demand value beyond environmental benefits from the systems. PV systems can be sized to power an entire home, but off grid residences often include other sources of energy, such as engine generators or wind turbines, to supplement or back up the PV system. Commercial Large scale PV requires special attention. The reason for this is the amount of power being generated and distributed to loads. While some systems can resemble a residential solar system, other cases demand creativity, building knowledge, electrical code, and safety requirements. We analyze commercial clients on an individual basis to ensure the proper goals will be met. 25-Year Warranty on Parts and 10-Year Warranty on Labor and Trouble Shooting Our Standard Warranty Covers: All components of the generating system AND t