Top Sunnyvale, CA Startups (10,000+)

Ellevation is a mission-driven company dedicated to helping English Learners (ELs) achieve their highest aspirations. We are an indispensable partner to school district administrators, teachers and students across the United States, who use our products to manage complex program requirements, build the capacity of teachers to serve multilingual learners, and empower students with the academic language necessary for success in...

DoubleDown Interactive is a leading developer and publisher of digital games on mobile and web-based platforms. We are the creators of multi-format interactive entertainment experiences for casual players, bringing authentic Vegas entertainment to players around the world through an online social casino experience. Our flagship social casino title, DoubleDown Casino, has been a fan-favorite game on leading social and mobile...

Founded in 2015, ReUp Education is the only organization that focuses exclusively on helping colleges and universities engage and re-enroll the more than 40 million US residents who have "stopped out" and support them until graduation, through our technology-enabled service. Today we build regional marketplaces to connect the supply of educational opportunities with the demand for skilled and credentialed workforce...

Boston-based company Piaggio Fast Forward Inc. (PFF) was founded in 2015 by the Piaggio Group (the Italian manufacturer that created the iconic Vespa scooter). In order to bring products to market today, PFF is solving the problem of robotic interaction with people in dynamically changing environments. We’re innovators, neighbors and creators with a passion for local living and pushing the...

AdCellerant provides businesses access to high-quality digital marketing technology and solutions through partnerships with media companies and agencies.  Focused on generating results and growth for businesses of all sizes, AdCellerant offers best-in-class technology and software, award-winning customer service, expert education, and exceptional operational support to ensure campaign performance for customers. Leveraging proprietary technology UI.Marketing, AdCellerant effectively connects businesses with their ideal...

Core Digital Media was founded to empower people to improve their financial lives. Our websites QuickenLoans.com and LowerMyBills.com provide consumers valuable information and company connections as you navigate life's biggest financial decisions.

Nisos is a human risk intelligence and managed investigations company that protects organizations and their people from human-driven and digital threats by operating as an extension of their security, intelligence, and legal teams. It leverages a team of expert analysts, specialized in open-source intelligence and adversary tradecraft, to provide actionable intelligence that addresses complex risks like executive threats, insider fraud,...

Endpoint is a digital title and settlement company built from the ground up to make home closing easy for all. Founded in 2018 by a diverse group of tech and real estate veterans, Endpoint develops technology that streamlines home closing for real estate agents, buyers and sellers, and empowers proptech companies and investors looking to scale their closing operations.

Proto is the leader for inclusive multilingual contact centre automation. Governments and businesses use Proto's AI Customer Experience (AICX) platform to ensure local language service, long-term operational efficiency, and citizen protection. Proto deployments are powered by its HermesAI™ engine for local and mixed languages.

Born out of necessity, RapidX is a lifestyle-forward brand that creates practical, stylish, and dynamic products you enjoy that enhance your life On the Go, at Home, or in the Office. Our philosophy is to design products based on customer input from the bottom up, creating a consumer-centric portfolio melded with innovation and technology efficiency. RapidX products are functionally unique,...

commercetools is the leading enterprise commerce platform, helping global businesses increase revenue and performance across every channel. Our technology powers unified digital experiences that connect B2C, B2B, in-store, and AI-driven commerce at enterprise scale. We’re a hub-based company built on collaboration, learning, and shared success. Our teams work together across offices in Munich, Boston, London, Valencia, Singapore, and beyond to shape...

Since 2004, EZ Texting has provided 230,000+ growing businesses and organizations with an effortless way to start text marketing — and powerful features and integrations to keep conversations going. EZ Texting is a recognized leader in text message marketing for small and medium-sized businesses and organizations, setting the standard for professional texting. Our messaging solutions allow everyone to easily and effectively...

"This should be easier..." Pricefx was born of a simple yet powerful idea: that building a 100% cloud-native pricing platform would be the key to unlocking exceptional profitability for customers. At the time, cloud SaaS was only emerging as a trend, though we know today that cloud SaaS software is the future of software. Our founders had a unique insight –...

The Heico Companies is the parent holding company for a diverse portfolio of manufacturing, construction, and industrial services businesses. Today, we look to acquire performing businesses that complement our existing operations. As a buy, hold, and build investor, we have owned many of our operations for over 40 years. A key factor in our growth is our commitment to reinvest...

Learneo is pioneering a platform of productivity and learning businesses. The platform of businesses includes CliffsNotes, the original and iconic study guide company; Course Hero, an online learning platform of academic resources; LanguageTool, a multilingual writing platform; LitCharts, a creator of literature resources; QuillBot, an AI-powered writing companion; Scribbr, a multilingual academic proofreading service; StudentBrands, a suite of supplemental learning...

Laudio empowers healthcare leaders to drive large-scale change through everyday human actions. Our platform streamlines workflows for frontline leaders, strengthens interpersonal connections, and aligns C-suite objectives with frontline efforts, enhancing leader efficiency, employee engagement, and patient experience. Laudio makes it possible for patients, frontline workers, and health system leaders to thrive together. Discover how at www.laudio.com.

ActivTrak is an award-winning workforce analytics platform that analyzes digital work activity data to improve team performance — both in the office and remotely. Over 9,000 customers use ActivTrak to understand work habits and potential blockers to success, view organization-wide productivity trends for agile decision-making, and improve technology usage and workflows to optimize efficiencies. With ActivTrak, companies can share weekly...

caled Agile, Inc. is the provider of SAFe®, the world’s most trusted system for business agility—and empowers organizations with enterprise AI training and enablement solutions that build the fluency, systems, and skills to become truly AI-Native. Through integrated solutions that help teams unlock better ways of working, Scaled Agile is redefining how the world’s leading organizations identify and deliver customer value,...

Updata Partners is a leading technology-focused growth equity firm in Washington D.C. with over $1.5 billion in committed capital. Led by an investment team averaging more than 25 years of technology experience, Updata invests in high-growth B2B software and software-driven businesses where the combination of capital and operating experience will help accelerate success.

Clean Power Research® is advancing the energy transformation through cloud software that informs, streamlines and values energy-related decisions and processes for utilities, energy professionals and consumers. We’re focused on expanding our market reach and impact with new software technologies that help solve the energy industry’s problems. Recognized by BuiltIn Seattle as "Top 100 Best Places to Work in Seattle” and...