Top Tech Startups in Bellevue, WA in 2026

OfferUp is changing how people buy and sell locally by making it as easy as taking and sharing a photo from your phone. We are not just about connecting buyers and sellers; we are about creating a simple and safe marketplace that changes people’s lives. OfferUp is a top 10 shopping app on Google Play and a top 20 app in the Lifestyle category on iTunes.

Humanly is revolutionizing talent acquisition with our AI-powered recruiting platform, designed to automate screening, scheduling, and candidate engagement. As a fast-growing Series A company, we help mid-market and enterprise organizations transform their hiring processes, reducing time-to-hire and elevating candidate experience through intelligent automation. Behind our tech is a team of curious, driven, and deeply human people. We take ownership, move fast, and care about doing the right thing - for our customers, candidates, and each other. Our culture is built on collaboration, authenticity, and a shared belief that hiring can and should be better. We’ve been honored as a GeekWire Workplace of the Year nominee multiple years in a row, and named one of Will Reed’s Top 100 early-stage companies to work for. These recognitions reflect what we already know: Humanly is a place where people come to grow, build, do meaningful work- and have a little fun while we’re at it.

Unity is the world’s leading platform for creating and operating real-time 3D (RT3D) content. Creators, ranging from game developers to artists, architects, automotive designers, filmmakers, and others, use Unity to make their imaginations come to life. Unity’s platform provides a comprehensive set of software solutions to create, run and monetize interactive, real-time 2D and 3D content for mobile phones, tablets, PCs, consoles, and augmented and virtual reality devices. The company’s 1,400+ person research and development team keeps Unity at the forefront of development by working alongside partners to ensure optimized support for the latest releases and platforms. Apps developed by Unity creators were downloaded more than three billion times per month in 2019 on more than two billion unique devices. For more information, please visit unity.com. Download Unity: unity3d.com/get-unity We're hiring! Visit our careers site: careers.unity.com For support, please email: [email protected] Check us out on our other social channels: Twitter: twitter.com/unity3d Facebook: facebook.com/unity3d LinkedIn: linkedin.com/company/unity-technologies Instagram: instagram.com/unitytechnologies

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.

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.

At Snout, our mission is to ensure no one ever has to make a healthcare decision for their pet based on the money in their bank account. As a modern financing alternative to traditional pet insurance, Snout wellness plans cover 100% of routine veterinary care like vaccinations, unlimited visits, and other valuable member benefits — designed to be used, not forgotten. We help pet owners prioritize care while removing financial risk for veterinary practices.

It currently takes the same amount of time to process an average American mortgage as it does to walk nonstop from Manhattan to San Francisco! Xpanse is working to change that. It’s our mission to create a universal platform that brings clarity, ease, automation and security to the origination process. Our SaaS platform will power the mortgage industry and its relationships with a massive network of third-party providers that are integral to the mortgage process. By focusing on the customer, using automation, real-time intelligence, big data, and analytics we are changing the way borrowers, lenders, servicers, and service providers take care of business. But disrupting an industry is a team sport – we are looking for the best and brightest to join us. Our team is growing rapidly in the Greater Seattle Area. Currently WFH. Future HQ in Downtown Bellevue.

Applied Behavior Analysis, Occupational Therapy, and Speech Therapy: ABA is the only surgeon general recommended treatment for autism. Taking a comprehensive approach, involving occupation and speech therapy is proven to achieve the highest level of outcomes for kiddos with ASD and other developmental delays. Our commitment to clinical quality is unwavering and is at the forefront of all decision-making.

iSpot.tv helps advertisers measure the brand and business impact of TV and streaming advertising, from concept to airing to conversion. Fast, accurate and actionable measurement and attribution solutions enable advertisers to assess creative effectiveness, enhance media plans and attribute advertising results for cross-platform campaigns, all while benchmarking against competitors and historical norms. Unlike legacy and ad hoc solutions, iSpot is purpose-built to measure the performance of every ad on television with digital-like precision and granularity in real time. With always-on performance insights unified across linear and streaming TV, advertisers can take quick and confident action to consistently drive business results.

Hyperproof scales compliance across your business, helps you automate many controls and orchestrate the rest, and integrates risk operations to protect your business.