UPSTACK Competitors

With over $4 billion in global payments, $200 million in annual revenue, 70k contracts signed — Toptal is the world’s largest fully remote workforce.

Turing is one of the world’s fastest-growing AI companies accelerating the advancement and deployment of powerful AI systems. Turing helps customers in two ways: Working with the world’s leading AI labs to advance frontier model capabilities in thinking, reasoning, coding, agentic behavior, multimodality, multilinguality, STEM and frontier knowledge; and leveraging that work to build real-world AI systems that solve mission-critical priorities for companies. Powering this growth is Turing’s talent cloud—an AI-vetted pool of 4M+ software engineers, data scientists, and STEM experts who can train models and build AI applications. All of this is orchestrated by ALAN—our AI-powered platform for matching and managing talent, and generating high-quality human and synthetic data to improve model performance. ALAN also accelerates workflows for model and agent evals, supervised fine-tuning, reinforcement learning, reinforcement learning with human feedback, preference-pair generation, benchmarking, data capture for pre-training, post-training, and building AI applications. Turing—based in San Francisco, California—was named #1 on The Information’s annual list of “Top 50 Most Promising B2B Companies,” and has been profiled by Fast Company, TechCrunch, Reuters, Semafor, VentureBeat, Entrepreneur, CNBC, Forbes, and many others. Turing’s leadership team includes AI technologists from Meta, Google, Microsoft, Apple, Amazon, X, Stanford, Caltech, and MIT.

X-Team provides high-performing, on-demand tech talent to help the world’s leading brands scale their engineering capabilities effortlessly. As a pioneer in remote work, X-Team has mastered the art of integrating elite developers into existing teams, ensuring seamless collaboration, cultural alignment, and exceptional performance. We pride ourselves on our human-driven approach, meticulously vetting our talent for both technical expertise and cultural fit. This commitment has earned us one of the industry’s highest retention rates, dramatically reducing turnover costs and fostering long-term success. From gaming to media, fintech to entertainment, companies across diverse industries rely on X-Team to deliver tailored solutions, whether they need a single engineer or an entire team. At X-Team, we believe in the power of continuous progress. Our Keep Moving Forward ethos inspires both our developers and our clients, empowering them to overcome challenges, embrace innovation, and achieve their goals. Our vibrant, global community of developers is supported with resources to grow, stay motivated, and consistently deliver excellence. Whether you're looking to scale rapidly, tackle complex technical challenges, or boost your team’s productivity, X-Team offers a proven solution designed to make hiring elite tech talent as simple and efficient as possible.