Top Tech Companies in Ontario, CA (10,000+)

Named among the World’s Most Admired Companies™ by Fortune and recognized in the Fortune 100 Best Companies to Work For® list in 2025, MetLife is leading the global transformation of an industry we’ve defined for more than 155 years. At MetLife, every innovation and line of code is a lifeline for our customers and their families—from victims of natural disasters...

Collectors has multiple business lines that grade, authenticate, and sell millions of high-value, record-setting collectibles. We're the leader in third-party authentication and grading services for high-value collectibles including trading cards (Professional Sports Authenticator and Card Ladder), coins (Professional Coin Grading Services), video games (Wata), event tickets, autographs, and memorabilia, and with your help we can continue to grow rapidly. Our...

SmartBear is pioneering innovation in software quality, embracing AI’s transformative potential. The company’s powerful solution hubs, including SmartBear API Hub, SmartBear Insight Hub, and SmartBear Test Hub, featuring HaloAI, give software development teams around the world visibility and automation that provide end-to-end quality. SmartBear is trusted by over 16 million developers, testers, and software engineers at 32,000+ organizations – including...

A technology-driven asset manager and registered investment advisor delivering personalized investment solutions that are tailored to reflect individual sustainability and financial priorities. Headquartered in New York City, our growing team brings a diverse set of backgrounds and experiences. Together, we are on a mission to help create a future where all investing is sustainable investing.

We're Mochi Health, a pioneering force in obesity medicine dedicated to building personalized, clinically-backed weight care solutions. We're on a mission to empower patients with one-on-one virtual care and proven pharmaceutical treatments. We recognize that every body is unique, and believe weight loss plans should be, too. With over 100 million individuals struggling with obesity and 15 million already using GLP-1 prescriptions,...

We are digital marketing at the highest level for real estate agents and teams all over the US. Powered by big data and AI for lead generation and lead nurture at scale we are creating industry leading solutions for our clients.

Rundoo gives independent supply stores the best technology to rise above the competition, so you can win customers, streamline operations, and grow your business.

Anduril is a defense products company. Unlike most defense companies, we don’t wait for our customers to tell us what they need. We identify problems, privately fund our R&D and sell finished products off the shelf. Ideas are turned into deployed capabilities in months, not years.

Hedra is an AI native platform for multimodal creation. The platform is built around their own cutting-edge proprietary video model, Character-3, which is the first multimodal model in production. Alongside Character-3, the platform also brings other leading foundation models into one ecosystem spanning generative images, video, and audio. Prosumer and enterprise users leverage Hedra to generate content ranging from viral...

Snap Inc. is a technology company. We believe the camera presents the greatest opportunity to improve the way people live and communicate. We contribute to human progress by empowering people to express themselves, live in the moment, learn about the world, and have fun together.

Apex Fintech Solutions provides the tools and services that enable hundreds of clients to launch, scale, and support digital investing for tens of millions of end investors. The company provides essential infrastructure and a comprehensive ecosystem of cloud-based products to enable and streamline trading, wealth management, cost basis, tax reporting, and, through its subsidiary Apex Clearing™, custody and clearing. For...

SailPoint is the leader in identity security for the cloud enterprise. Our identity security solutions secure and enable thousands of companies worldwide, giving our customers unmatched visibility into the entirety of their digital workforce, ensuring workers have the right access to do their job – no more, no less.

Cisco ThousandEyes is a Digital Experience Assurance platform that empowers organizations to deliver flawless digital experiences across every network – even the ones they don’t own. Powered by AI and an unmatched set of cloud, internet and enterprise network telemetry data, ThousandEyes enables IT teams to proactively detect, diagnose, and remediate issues – before they impact end- user experiences. ThousandEyes...

Geneva Trading LLC is a leading proprietary trading firm with a history of consistent success in the listed derivatives markets. Over the past 20 years, we’ve grown significant capital, developed proven technology, and maintained an appetite for diversified trading strategies. We foster innovation and look for people who can solve complex problems that drive immediate results. We've built a culture of...

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re building a resilient economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help...

Performance-driven learning & development teams achieve business impact with 360Learning. L&D teams leverage AI and collaborative learning to pinpoint skills gaps, capture knowledge from experts, and deliver it to learners when needed most. 360Learning’s learning platform is equipped with powerful LMS automation, collaborative learning Academies, tools to create a top-notch learner experience, and an AI-powered Skills ontology to activate skills-based...

Hebbia is the AI platform for knowledge work used by leading finance, law, and Fortune 500 companies. The product orchestrates "AI agents" that accurately tackle the most complex tasks by breaking them down into understandable actions. Users can collaborate with AI to extract, structure, and analyze millions of documents at scale, allowing for full workflow automations with generative AI. We've raised...

Founded in 2001, Vivid Seats is a leading online ticket marketplace committed to becoming the ultimate partner for connecting fans to the live events, artists, and teams they love. Based on the belief that “Life Happens Live”, the Chicago-based company provides exceptional value by providing one of the widest selections of events and tickets in North America and an industry...

Our strength has always been our unique edge: transforming how businesses connect with vendors through our marketplace. We're not just improving workflows - we're redefining how procurement, operations, accounting, and payments come together to drive efficiency and innovation. Every step - requisition, approval, payment, and reconciliation - is curated and automated to make purchasing across all your vendors, locations and...

Utility is a premier digital product agency specializing in custom mobile apps, web platforms, and AI-powered solutions for forward-thinking startups and global brands—including Airbnb, Coca-Cola, Samsung, the NBA, and Forbes. With offices in New York and Los Angeles, our team includes leading product strategists, UX/UI designers, AI engineers, and top-tier developers.