Top Tech Startups in California, US in 2027

Guidewheel is on a mission to empower all the world’s factories to reach sustainable peak performance. Inspired by the simple, universal truth that every machine on the factory floor has a power cord, our plug-and-play FactoryOps platform makes the power of the cloud accessible to any factory. Guidewheel clips onto any machine to turn its real-time “heartbeat” into a connected, actively learning system that empowers teams to reduce lost production time, increase throughput, and perform better and better over time. At Guidewheel we work with the factories that are the backbone of our economy, and you can have a real, on-the-ground impact right away. We have strong momentum and alignment around our mission, investor support, and a culture that values diversity, growth mindset, and results. And the tight link between our mission and our business model means that reaching more of the world’s 10 million factories accelerates our positive impact on the planet. Guidewheel is growing rapidly and already works with 250+ manufacturers across the US, Canada, LatAm, Europe, Asia, and Africa. Backed by top investors including BlackRock and Temasek’s Decarbonization Partners fund, Greycroft, and Breakthrough Energy Ventures, Guidewheel has been named by Pitchbook as a "climate-tech startup you need to know," honored with awards from MIT, Stanford and McKinsey, and highlighted at the 2024 WEF Annual Meeting in Davos.

Our mission is to inspire an elite team of engineers to solve the world’s most valuable problems using AI. We solve hard AI-driven problems that our customers don't have the resources or know-how to staff themselves – cutting through jargon and flashy demos to get AI into production, fast.

Using massive data analysis of connected device firmware and software, Finite State provides transparency to device manufacturers and asset owners, enabling them to understand and mitigate their risks before they are compromised. The Finite State Platform automatically analyzes each device, allowing users to identify risk across a comprehensive matrix of factors. Simply upload your device firmware to our platform and within minutes you will gain access to an overall risk score, a robust Software Bill of Materials (SBOM), a list of existing threats and vulnerabilities, and a wide array of other factors that affect the security of your device.

Every day, every minute millions of products from the world's leading retailers and brands are being listed, found, sold and delivered through CommerceHub. The next generation of retail will be fueled by innovation, efficiency, personalization and outstanding customer service – made possible by best-in-class strategic partnerships. CommerceHub is the key

We invest in companies that define new markets, including Airbnb, AppDynamics, Arista Networks Cloudera, Coinbase, Discord, Dropbox, Facebook, Figma, Instagram, LinkedIn, Medium, Nextdoor, Okta, Pure Storage, and Roblox.

Attivo Partners is a full stack finance and accounting firm located in San Francisco, California. We provide our emerging growth clients with interim CFO, accounting and finance services across industries and at all stages of early growth – from zero to $50M in revenue.

Fay is an all-in-one superintelligence preventative care platform helping people live better lives. By harnessing the increasingly blurred line between AI and human intelligence, Fay is developing superintelligence to empower people and their care teams to prevent bodily deterioration before it starts. We're in a very fortunate position: We found product-market fit early on, our business is growing at breakneck speed, and we're backed by top Silicon Valley VCs. While we have the traction of a more mature startup, we're still a seed stage company and a six person team. So we're looking for more talented, hard-working early team members to help us keep up with overwhelming demand for our product and build towards our big vision.

Tatari is the leading technology platform for utilizing data and analytics to measure and buy ads across linear and connected TV. We understand the complexities that come with getting starting in TV advertising and we give brand marketers the transparency and ability optimize just like they would with a digital campaign. Tatari utilizes a proprietary data science methodology to show the true incremental lift from an ad campaign which helps brands better attribute their sales and invest in high performing inventory sources. Hundreds of brands, old and new to TV advertising, use Tatari’s measurement and media buying technology. Our team includes founders or leaders from other fast-rising companies, like Shazam, TrueCar, Crunchyroll, Vizify, LiveRail, LKQD as well as from more established large companies like Google, Facebook, and Stripe. We are not comprised of agency folks—most of us are engineers and data scientists by training, and we’re building the best solution in the industry. We have been recognized with awards for "best places to work" by both AdAge and Inc Magazine for 2020.

Pulse, are the leading global provider of multichannel marketing content creation and automation and artificial intelligence technology, for life science companies. Using our customer centric approach, combined with compelling creative and groundbreaking technology, we work with some of the worlds largest healthcare organisations to create remarkable experiences for healthcare professionals and patients. Our CLM builder platform, Heartbeat™, is a cloud-based, multichannel marketing automation platform – optimised for Veeva customers and adopted by leading global pharmaceutical companies. Heartbeat™ seamlessly integrates into Veeva Vault and automates common tasks across the end-to-end content supply chain for CLM, Engage, Approved Email and MyInsights. We are at the cutting edge of transforming healthcare for the benefit of patients. We are always on the lookout for talented individuals to come and help us drive the change.

Our structure is unique. We are the only major Creative Technology Agency where the owners of the business are the creators of the work and serve as the prime contact for every client. This reflects our conviction that a Great Branding Experience cannot happen without passion, intelligence, and most importantly personal commitment. Our partners are all practicing experts, and whether working collaboratively or independently, we do so in our collective urge to solve business problems and to create meaningful solutions. We constantly strive to imagine a better world and innovate it. With a strong understanding of behavioral science, we approach everything we build keeping the community & the target users at the core, combining creative and critical thinking to build the perfect brand experience, this is established by a portfolio that spans almost a decade of dedication, many industries, & clients of every size. To keep it simple & clear, from concept to creation, be it any medium now or in the future, we are constantly researching, refining, and reinventing ourselves to effectively Imagine, Innovate & communicate some of the most inspiring, engaging expressions & stories with the world, to make an impact & to leave a mark behind, that’s our ambition. Let’s build something we are proud of.