This is a curated directory of verified LLM development companies. Every listing below carries a verified profile with founding year, headquarters, team size, tech stack, services, typical budget range, a clear company description, and a direct link to the studio's official website. No fake reviews. No paid rankings.
LeewayHertz is a San Francisco-based AI development company specializing in generative AI, LLM applications, AI agents, and enterprise AI platforms for Fortune 500 clients.
Markovate is a Toronto-headquartered AI and product development company building generative AI applications, LLM-powered products, and MVPs for startups and enterprises.
Brainvire Infotech is a long-established global IT services firm delivering AI and ML, generative AI, blockchain, and enterprise software for retail, healthcare, and financial clients.
Master of Code Global is a Toronto-headquartered conversational AI and generative AI development company building chatbots, voice assistants, and LLM integrations for enterprises.
ScienceSoft is a long-established US-headquartered IT consultancy delivering AI, ML, data engineering, IoT, and custom software for healthcare, banking, and enterprise sectors.
ITRex Group is a US-headquartered emerging tech consultancy delivering AI, ML, IoT, AR, and VR engineering for healthcare, retail, and enterprise transformation projects.
STX Next is one of the largest Python and Django development companies in Europe, building product platforms, machine learning solutions, and SaaS applications for global clients.
OpenXcell is an India and US-based software development company offering mobile apps, web platforms, AI solutions, and SaaS engineering for global startups and enterprises.
Iflexion is a US-headquartered custom software development company with over 20 years of experience in Python, .NET, web, and mobile platforms for enterprise clients.
Every company on this list of verified LLM development companies has a verified website, traceable office location, public team information, and a real portfolio of delivered work. We link out only to each studio's official website. We do not host invented reviews or paraphrased client quotes.
Budgets range from around USD 2,000 for an early prototype or MVP at India and Eastern Europe rates up to USD 250,000 and above for AAA co-development and US-based premium agencies. The listings show typical project ranges for each studio.
No. Rankings are based on years of operation, scope of services covered for the category, team size, public portfolio depth, and pricing range. We do not sell placement or remove negative content.
Use the four filters that matter most for software work: engine or stack fit, genre or domain experience, team size relative to your scope, and pricing fit. Visit the official website of two or three studios, request two case studies that match your project type, and have a call before signing.
Studios with no verifiable office address, no named leadership on LinkedIn, no portfolio you can play or view, and no consistent presence across their own website and public profiles. Always verify a studio's website and ask for client references you can actually contact.
If your studio belongs on this list of verified LLM development companies, or your listing needs an update, email us with your website and case studies.
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