Top Tech Companies in Thornton, CO (10,000+)

Posh is the first social media platform dedicated to real-life social experiences. We have democratized event creation, making it easy for anyone to host events and empowering organizers to curate unique experiences. In doing so, Posh enables consumers to discover social events in their community, connect with peers around shared interests, and start and scale their own social communities.

A leader in veterinary care, VCA Animal Hospitals is a family of hometown animal hospitals dedicated to positively impacting pets, people, and communities. They provide world-class medicine and hometown care to more than four million pets each year, offering a range of services from primary and urgent care to specialty and emergency medicine. VCA is part of the Mars Veterinary...

Corporate Tools is proudly, stubbornly independent. No outside investors calling the shots. It’s just us choosing customers over profits, every time. We build the behind-the-scenes tools that keep businesses running: software, LLC filings, registered agent service, website and domain registration, address services… basically all the unglamorous stuff that makes companies actually work. We’ve grown into one of the largest B2B providers in...

CrowdStrike has redefined security with the world’s most advanced cloud-native platform that protects and enables the people, processes and technologies that drive modern enterprise. Tested and proven, the world's largest organizations trust CrowdStrike to stop breaches with unparalleled protection against the most sophisticated cyberattacks. The CrowdStrike culture has been built upon our Core Values since the day we began. We...

Vendavo partners with the world’s leading companies to accelerate growth and profitability, advance innovation, and build more prosperous communities. Our powerful, cloud-based, AI-powered pricing, selling, and prescribing solutions empower global manufacturers and distributors to manage, optimize, and digitize their end-to-end commercial processes. But we offer so much more than software. Our proven, repeatable process, and passionate, experienced people accelerate value...

We're honored to be No. 10 on Great Place to Work's World's Best Workplaces and recognized in the Fortune 100 Best Companies to Work For® list in 2025. At MetLife, we're leading the global transformation of an industry we’ve defined for over 157 years. At MetLife, every innovation and line of code is a lifeline for our customers and their...

Since 1919, Rosendin has created a reputation for building quality electrical and communications installations, building value for clients, and building people. Our customers lead some of the most complex construction projects and rely on us for our knowledge, ability to scale, and dedication to quality. At Rosendin, we provide opportunities for everyone to reach their full potential by building a...

Halo Investing is an award-winning technology platform that disrupts how protective investment solutions are used worldwide. Headquartered in Chicago, with employees worldwide, we’re on a mission to change the world by democratizing access to investment solutions that were previously unavailable to most investors. Our marketplace connects financial advisors and investors to protective investment products – including structured notes and annuities...

Zocdoc is the tech company at the beginning of a better healthcare experience. Each month, millions of patients use Zocdoc to find in-network neighborhood doctors, instantly book appointments online, see what other real patients have to say, get reminders for upcoming appointments and preventive check-ups, fill out their paperwork online, and more.

Genius Sports is the layer between what happens on the field and how the world engages with it. Our solutions across the global sports ecosystem are underpinned by our next generation big data and artificial intelligence platform, GeniusIQ. By ingesting and computing multiple real-time data feeds, GeniusIQ powers a wide range of functions and applications across sports performance and officiation, fan engagement,...

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...

As the world’s largest asset manager, BlackRock partners with investors around the globe to help them (and those on whose behalf they invest) plan for life’s most important goals – like retirement, home ownership and their children’s education. Our clients range from governments, foundations and other large institutions to those investing on behalf of individuals, including firefighters, nurses, teachers and...

Citadel Securities is a technology-driven, next-generation global market maker. We provide institutional and retail investors with world-class liquidity, competitive pricing and seamless front-to-back execution in a broad array of financial products. Our teams of engineers, traders and researchers harness leading-edge quantitative research and the accelerating power of compute, machine learning and AI to power our analytics and tackle the market’s...

Fora is a technology company empowering the next generation of entrepreneurs. We build the platform that is changing travel - AI woven through every part of the advisor's workflow, plus global supplier relationships, training, and more, all in one place. That's what lets advisors build businesses that scale, while their taste and service create trips no algorithm alone could plan. The...

Acquia is the open digital experience company. We provide the world's most ambitious brands with products built around Drupal to allow them to embrace innovation and create customer moments that matter. At Acquia, we believe in the power of community and collaboration — giving our customers and partners the freedom to build tomorrow on their terms.

Trumid is a dynamic technology company transforming fixed-income trading. As one of the leading electronic trading platforms in the U.S., Trumid connects more than 1,400 traders from 1,000 global institutions who transact on the platform each month. Our team brings together seasoned engineers, data scientists, and product developers with former traders and market specialists to elevate the credit trading experience.

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...

Purchasing Platform is a unique B2B marketplace tailored for all sectors of property management. We leverage cutting-edge technology to empower property portfolios, enabling them to manage purchasing activities efficiently across all properties while driving real cost savings from trusted suppliers. Our platform services portfolios across the nation, enhancing operational workflows with features like embedded multi-level workflows, automated expense classification, and...

Apptronik is building robots for the real world to improve human quality of life and to help solve the ever-increasing labor shortage problem. Our team has been building some of the most advanced robots on the planet for years, dating back to the DARPA Robotics Challenge. We apply our expertise across the full robotics stack to some of the most...

Klaviyo (NYSE: KVYO) is the B2C CRM. Powered by its built-in data platform and AI, Klaviyo combines marketing automation, analytics, and customer service into one unified solution, making it easy for businesses to know their customers and grow faster. Klaviyo (CLAY-vee-oh) helps over 183,000 brands like Mattel, Glossier, Daily Harvest, and Liquid Death deliver 1:1 experiences at scale, improve efficiency,...