Bigcircle

Bigcircle is an AI engineering company for products where a wrong answer has consequences. We build agents that act on real systems (desktop, cloud, the OS) through MCP tooling; citation-backed extraction and search over dense, regulated documents; RAG; and voice AI. The work that makes them trustworthy is built as plumbing, not policy: every run acts as a scoped principal with its own token, irreversible actions are approved one at a time, personal data is encoded before the model sees it and decoded after, every response is checked against policy on the way out, and every step, including failures, lands in a record you can replay. Our case studies say which systems shipped and which were only tested. Engineers are vetted on a system they built and a break we watch them fix, and they stay on one product from start to finish. Work with us three ways: embed one to three engineers in your team, take a CTO-led pod of three to eight engineers and QA led by our founder as fractional CTO, or buy a fixed-scope build with discovery, build, evals and deployment at a fixed price. You own the code and IP. Learn more at bigcircle.ai.