Top Thornton, CO Startups (10,000+)

With over 1,400 team members across multiple companies, dedicated to improving the lives of people and their pets, we create best-in-class products that bring health and happiness. Our creative content educates the world on making smarter health choices, while the brands we own generate over $1 billion of revenue annually. From brand ideation to ad creation to product fulfillment, the...

Life is stressful enough; finding, scheduling, and accessing diverse and quality mental healthcare shouldn't be. Spring Health equips employers and health insurers across the globe to make mental health accessible and achievable. We use clinically validated AI technology, called Precision Mental Healthcare, to deliver optimal care — from meditation, coaching, therapy, medication, or a combination of all four — to...

Sojern is built on more than a decade of expertise analyzing the complete traveler path to purchase. We drive travelers from dream to destination by activating multi-channel branding and performance solutions on the Sojern Traveler Platform for more than 10,000 travel companies around the globe.

Closinglock is the trusted platform for securing and streamlining real estate transactions. Working with title companies and law firms nationwide, it protects what truly matters: their clients, their funds, and their hard-earned reputation. Closinglock brings the entire workflow into one secure space—from ID verification and wire instructions to payments and eSigning. This means users can close deals faster, with total...

QuillBot is on a mission to make writing painless. We are starting with our state-of-the-art AI paraphraser which functions as a full-sentence thesaurus. Millions of people already use it to craft sentences, improve fluency, and get over writer's block.

Grammarly is the trusted AI assistant for communication and productivity, helping over 40 million people and 50,000 organizations do their best work. Companies like Atlassian, Databricks, and Zoom rely on Grammarly to brainstorm, compose, and enhance communication that moves work forward. Grammarly works where you work, integrating seamlessly with over 500,000 applications and websites. Founded in 2009, Grammarly is No....

Snap! Mobile has been proudly supporting athletics and activities programs around the country with simple and dependable services since 2014. Snap! Raise has raised more than One Billion dollars for over 150,000 groups and teams through over 12.5 million participants and donors. In addition to the Snap! Raise fundraising solution, Snap! Mobile further supports schools, groups, and teams with its...

Enfusion, a Clearwater Analytics company (NYSE: CWAN), helps investment managers solve their most pressing challenges by approaching innovation from a fundamentally different perspective. Our cloud-native, multi-tenant architecture powers continuous innovation, non-disruptive upgrades, and unmatched speed to market for institutional investors. We empower them to see clearly—so they can act with confidence. From hedge funds to asset managers, we support firms in...

A global leader in applied safety science, UL Solutions transforms safety, security and sustainability challenges into opportunities for customers in more than 100 countries. UL Solutions delivers testing, inspection and certification services, together with software products and advisory offerings, that support our customers’ product innovation and business growth. The UL Certification Marks serve as a recognized symbol of trust in...

SteelSeries is a global leader in gaming. We create hardware and software that enhances the gaming experience, improves performance, and leads to winning. Want proof? Esports pros have won more prize money using our gear than with any other brand. Our philosophy is that professional quality gear benefits every gamer, whether they're playing with friends, streaming their favorite titles, or...

Ro is a direct-to-patient healthcare company with a mission of helping patients achieve their health goals by delivering the easiest, most effective care possible. Ro is the only company to offer nationwide telehealth, labs, and pharmacy services. This is enabled by Ro's vertically integrated platform that helps patients achieve their goals through a convenient, end-to-end healthcare experience spanning from diagnosis,...

BenchPrep helps the world's leading education, training, and assessment companies build and deliver best-in-class online learning programs. The platform is designed to personalize the learning experience for each user, adapting to their needs and progress. BenchPrep often offers mobile apps or responsive design, making it easy for learners to access their materials on various devices, such as smartphones and tablets....

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...

At Qualtrics, we create software the world’s best brands use to deliver exceptional frontline experiences, build high-performing teams, and design products people love. But we are more than a platform—we are the creators and stewards of the Experience Management category serving over 19,000 clients globally. "We are in the business of empowering organizations to really understand what people want, and then...

Chamberlain Group is a global leader in intelligent access and Blackstone portfolio company. Our innovative products, combined with intuitive software solutions, comprise a myQ ecosystem that delivers seamless, secure, access to people's homes and businesses. Our recognizable brands, including LiftMaster® and Chamberlain® , are found in 50+ million homes, and 10+ million people rely on our myQ® app daily to...

Together, we've turn ambition into action. For more than three decades, Citadel has captured undiscovered market opportunities in markets around the world by empowering extraordinary people to pursue their best and boldest ideas. We strive to identify the highest and best uses of capital to generate superior long-term returns for the world’s preeminent public and private institutions.

Stepful unlocks the full potential of the global workforce, improving access to quality healthcare for everyone, everywhere. Our platform is designed for working adults, particularly from historically underserved communities, providing virtual instructor-led courses that include live, cohort-based learning sessions and one-on-one coaching for those looking for entry-level positions in hospitals and healthcare settings. Stepful graduates, primarily from underrepresented communities, go...

By automating and streamlining common accounting workflows to make them more efficient, FloQast is where accounting teams want to work so they can focus on what matters most, even when that’s just logging off on time. Whether automating reconciliations, documentation requests, or streamlining recurring accounting processes, such as the month-end close, financial reporting, or payroll, FloQast's platform enhances the way...

We help everyday Americans build a brighter financial future. With a business model that is aligned with our customers, we create transparent, fair, and simple financial products that put money back in the hands of our members, help them spend wisely, and avoid unfair fees. We don’t just reduce stress — we promote sustainable financial health. Our team comes from diverse...

GRAIL is a healthcare company whose mission is to detect cancer early, when it can be cured. GRAIL is using the power of high-intensity sequencing, population-scale clinical studies, and state-of-the-art computer science and data science to enhance the scientific understanding of cancer biology, and to develop and commercialize pioneering products.