Koso

Koso is a custom AI development agency that designs, engineers, and ships bespoke AI systems for teams that refuse to settle for off-the-shelf software.

We build AI OS, agents, copilots, RAG systems, and full AI products, all engineered around how your business actually works. Every engagement delivers working software in your repo, on your cloud, with evals and observability from day one. No black boxes, no vendor lock-in.

What we build:

• AI Operating Systems that sit above your existing stack (CRM, docs, email, databases) and coordinate the whole thing into one intelligent layer
• Custom AI agents wired into your data, your tools, and your approval workflows, shipped behind real evals
• In-app copilots and RAG systems engineered for your domain, not a wrapper on top of a generic API
• Automation workflows that replace manual ops, run around the clock, and get sharper every week

How we work:

• Senior engineers on every project. No juniors learning on your dime.
• First production release in 4 to 6 weeks, not 6 months.
• Code, prompts, and infra delivered in your repo. You own every line.
• Weekly releases of working software, not slide decks.

We serve SaaS companies, agencies, e-commerce brands, finance, healthcare, and real estate teams across the US, UK, Australia, and India. Our stack spans OpenAI, Anthropic, Mistral, LangGraph, Pinecone, Supabase, Postgres, and deep integrations with Slack, HubSpot, Notion, Salesforce, and more.