Top Tech Startups in California, US in 2026

Parker is the AI creative director built to produce the highest-performing ads on the internet. Every company needs to grow. That's not new. What is new is that AI is about to create more companies than the world has ever seen, and every single one of them will eventually need to find customers. That problem isn't going anywhere. If anything, it's getting bigger. There are thousands of ad agencies built to solve it. A handful are great. Most are honestly pretty bad. And none of them scale past the people who work there. The idea behind Parker is simple: what if there's one agency that's as good as the best in the world, except it runs in software instead of people? We launched. We went viral. We've grown 10x since January. Top brands like LiquidIV, Gruns, and Legends now rely on Parker to create ads that actually win. We're not building just another AI tool. We're building the default answer to the question every company eventually asks: who's going to help us grow? We're a small team of people who deeply love their craft. Engineers who love to build, creative strategists who live for a great ad, and marketers obsessed with growth. We don't just work on this. We love what we're working on. If that sounds like you, we'd like to meet you.

Karlon Group provides enterprise-grade fractional finance & accounting, data analytics and investor relations support services to bootstrapped, venture-backed, and private equity owned companies at various stages of growth. We bring decades of strategic and operational finance & accounting experience, partnering with businesses across a range of industries, from SaaS to consumer to financial services. Our fractional CFO franchise prioritizes close partnership, excellence, and integrity above all in our approach to advising clients on their most critical finance & accounting challenges.

Cynch AI is an AI-native platform democratizing access to financial expertise for small businesses and entrepreneurs. Our client-facing accounting arm, Aardvark Tax Advisors, combines startup speed with enterprise-grade rigor to deliver tax, accounting, and advisory services.

FleetWorks automates the 2B phone calls and emails that the freight industry makes every year. We use voice synthesis, generative AI, and integrations with logistics systems to solve the largest cost in this industry - people. We are a fast-growing startup in the logistics space led by a founding team from companies like Airbnb and Uber Freight. We are a YC backed company. For more information about us, visit ycombinator.com/companies/fleetworks

We’re building a collaborative cloud for teams to work in the physical world. Here’s the master plan: 1. Build a world-class Engineering, Production, and Sales organizations. 2. Create a product that Gives Operators Superpowers. 3. Take a big swing at the giants of Enterprise Software Our cloud platform is an orchestration-layer the sits on top of a company's disparate resources. We integrate with 3rd party-services like ERPs, PLMs as well as public and private cloud services (databases, APIs, warehouses) to "operationalize" your data. What this means for team is not more digging through emails, downloading spreadsheets, trying to figure out what PO matches what Invoice, and which shipments are where. Recently, we closed a $3.5M seed round led by Contrary Capital, 47th Street Partners, Base Case Capital, and others. We’re just getting started.

We've put together a world class team of hotel execs, ecommerce gurus, and startup operators to build the modern ecommerce stack for hotels.

Agentic Operating Procedures for your ERP. Execute at machine speed, learn from every exception, and improve with every transaction.

Vision: At Living Stones Foundation, we envision a world where every individual and community thrives with hope, dignity, and opportunity. Our vision is rooted in the belief that through sustainable initiatives, collaborative efforts, and a commitment to positive change, we can create a global landscape where socio-economic disparities diminish, and the inherent potential of every person is realized. Mission: Our mission at Living Stones Foundation is to empower communities, inspire change, and foster innovation. We strive to be a catalyst for positive transformation by actively engaging in sustainable projects, strategic partnerships, and leveraging our diverse expertise. Through a holistic approach that transcends conventional boundaries, we aim to uplift and empower individuals, organizations, and churches, making a lasting impact on the fabric of society.

Every business that sells something a person has to install, use, or repair already has the video, cannot search it, and has customers asking about it anyway. We built the thing that finds the answer. Businesses pay us to turn how-to video into an expert on their own channels that answers their customers in their own voice.