Top St. Louis, MO Startups (10,000+)

We believe that when access to quality mental healthcare improves, patients, providers, and payers all benefit. And that’s why we’re on a mission to make mental healthcare work for everyone. We remove barriers and strengthen connection points between patients, providers, and payers to improve mental health outcomes. With Rula, it’s easy for patients to find a high-quality therapist or psychiatric...

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...

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...

Kustomer’s AI-native CX Platform defines the next era of CX with humans and AI working together seamlessly through visibility, orchestration, and action.

Luxury Presence is a SaaS provider for luxury real estate agents and companies. The company launched in 2016 and its client list includes some of the world’s most successful realtors and companies who purchase template-based luxury websites, content marketing tools, SEO, lead generation, and online advertising.

Boomi, the leader in AI-driven automation, enables organizations worldwide to connect everything, automate processes, and accelerate outcomes. The Boomi Enterprise Platform — including Boomi Agentstudio — unifies integration and automation along with data, API, and AI agent management, in a single, comprehensive solution, helping organizations radically simplify the complexity of enterprise software. Trusted by over 25,000 customers, with a user...

LogicGate® is a global leader in Governance, Risk, and Compliance (GRC) solutions, with a mission to deliver the software and capabilities enterprises and their people need to understand and manage their risks and transform them into strategic opportunities. Built by experts, our award-winning Risk Cloud® delivers over 40 purpose-driven solutions on a unified, modern cloud platform for connected, holistic risk...

Ibotta (NYSE: IBTA) is a leading performance marketing platform allowing brands to deliver digital promotions to over 200 million consumers through a network of publishers called the Ibotta Performance Network (IPN). The IPN allows marketers to influence what people buy, and where and how often they shop – all while paying only when their campaigns directly result in a sale....

MacPaw develops and distributes software for macOS and iOS that simplifies the lives of Mac users. Renowned for innovative and precision-engineered products, including CleanMyMac X, Setapp, ClearVPN, and the Unarchiver, and housing the Moonlock cybersecurity division, MacPaw is committed to elevating and securing the user experience within the Mac ecosystem. MacPaw’s focus on software technology, Human-Computer Interaction (HCI), Machine Learning...

Amplify’s cloud-based, integrated platform is purpose-built for financial advisors and firms ready to leave inefficiency behind. From onboarding and trading to compliance and reporting, Amplify brings the tools you need together in one scalable, seamless solution—so you can focus on growing your business. Our platform doesn’t just simplify tasks—it transforms how you work. By connecting and integrating data from multiple systems...

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...

Deepening the Science of Security Founded in 2012 by 3 expert hackers with no investment capital, Trail of Bits is the premier place for security experts to boldly advance security and address technology’s newest and most challenging risks. It has helped secure some of the world's most targeted organizations and devices. Our combination of novel research with practical solutions reduces 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...

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...

Recognized by Crain’s as one of 2025’s Most Innovative Companies, UncommonX helps customers move from reactive defense to proactive resilience, with the context, prioritization, and insights needed to reduce risk and respond with precision. We believe cybersecurity should deliver more than alerts — it should deliver clarity, confidence, and control. That’s why we built an AI-powered Exposure Management platform that gives...

Hi. We’re Trustpilot. Trustpilot began in 2007 with a simple yet powerful idea that is more relevant today than ever — to be the universal symbol of trust, bringing consumers and businesses together through reviews. Trustpilot is open, independent, and impartial — we help consumers make the right choices and businesses to build trust, grow and improve. Today, we have more than 300...

We offer a source to pay solution designed for the energy sector. It streamlines the entire process from finding suppliers to issuing payments. Our goal is to strengthen alignment between field workers and corporate offices.

Cie is a venture studio that serves as an innovation lab and accelerator for bold entrepreneurs who want to transform disruptive ideas into thriving ventures. Cie blends Silicon Valley DNA with the business maturity of serial entrepreneurs, seasoned venture capitalists, and Fortune 500 executives. Combined with the team’s strategic and operational expertise in technology, product development, brand building, and customer acquisition,...

TrueML makes financial technology that prioritizes customer experience and revolutionizes the experience of consumers seeking financial health. We’re a team of inspired data scientists, financial services industry experts, and customer experience fanatics creating experiences that serve people in a way that recognizes their unique needs and preferences as human beings and endeavoring to ensure nobody gets locked out of the...

Wipfli is an advisory firm that delivers holistic solutions to help clients navigate the modern marketplace, optimize performance and drive growth. Our more than 3,000 full-time associates deliver digital, people, strategy, risk, financial and outsourcing solutions to 54,000+ clients. "Wipfli" is the brand name under which Wipfli LLP and Wipfli Advisory LLC and its respective subsidiary entities provide professional services. Wipfli...