Cut SDR time-to-reply from 4h to 6 min
Custom inbound sales agent qualifies leads, drafts personalised first touches, and books meetings inside HubSpot.
We design, engineer and ship bespoke AI OS, agents, copilots and products for teams who refuse to settle for off-the-shelf software.
Capabilities · 06
Most teams are buying AI tools and still doing the work by hand. We build the system that does the work: agents, workflows, memory and interfaces that sit on top of your stack and produce outcomes you can measure - fewer handoffs, faster decisions, and IP your team actually owns.
A custom AI Operating System that sits above the tools you already run - CRM, docs, sheets, email, databases - and coordinates the whole stack. Workflows, agents, memory, reporting and integrations, all speaking to one shared model of how your business actually works.
The messy cross-tool processes your team keeps redoing - approvals, handoffs, follow-ups - rebuilt as AI-native flows that just execute.
SOPs, docs, calls, tickets and Slack, all searchable in plain English. New hires ramp in days, not months.
Slack, HubSpot, Notion, Sheets, Postgres, Zendesk. Your AI OS lives on top of them, not next to them.
A custom AI Operating System that sits above the tools you already run - CRM, docs, sheets, email, databases - and coordinates the whole stack. Workflows, agents, memory, reporting and integrations, all speaking to one shared model of how your business actually works.
The messy cross-tool processes your team keeps redoing - approvals, handoffs, follow-ups - rebuilt as AI-native flows that just execute.
SOPs, docs, calls, tickets and Slack, all searchable in plain English. New hires ramp in days, not months.
Slack, HubSpot, Notion, Sheets, Postgres, Zendesk. Your AI OS lives on top of them, not next to them.
The AI OS is the custom layer we build above your existing stack. It coordinates your CRM, docs, spreadsheets, email and databases into one place where work actually gets done. Your team stops switching tabs and starts approving decisions. Less busywork, fewer missed handoffs, and a system that improves the longer it runs.
The process
A four-step rhythm built for compounding outcomes. Click a phase, or let it play.
We map your workflows, surface the highest-ROI use case, and pick the slice of work where custom AI compounds the most value.
A custom operating system for your business: connectors, memory, agents and interfaces layered above your existing tools.
Production-grade agents wired into your data, your tools and your approvals. Shipped behind real evals, not demos.
Copilots that live inside your product. Retrieval, memory and guardrails engineered for your domain - not a wrapper.
Replace six-figure ops headcount with workflows that run 24/7, audit themselves and get sharper every week.
Get cited by ChatGPT, Perplexity and Google AI. We engineer the content layer that AI search actually surfaces.
A custom operating system for your business: connectors, memory, agents and interfaces layered above your existing tools.
Production-grade agents wired into your data, your tools and your approvals. Shipped behind real evals, not demos.
Copilots that live inside your product. Retrieval, memory and guardrails engineered for your domain - not a wrapper.
Replace six-figure ops headcount with workflows that run 24/7, audit themselves and get sharper every week.
Get cited by ChatGPT, Perplexity and Google AI. We engineer the content layer that AI search actually surfaces.
Custom inbound sales agent qualifies leads, drafts personalised first touches, and books meetings inside HubSpot.
Built a bespoke AI product that pulls from GA4, Ads and CRM and answers client questions in plain English.
Tier-1 deflected by a custom agent grounded in the help center, with human handoff on edge cases.
From scrappy startups to enterprises, the products are different. The engineering bar is the same.
In-app copilots, support deflection, retention loops.
Custom client tooling, reporting agents, delivery automation.
Catalog AI, conversational CX, post-purchase agents.
Onboarding, document review, compliance copilots.
Intake, scheduling, clinical assistants within policy.
Lead routing, listing AI, tenant communication agents.
Senior engineers, weekly releases, and software your team can read, fork and own. No black boxes, no vendor lock-in, no junior offshore squads. Just the AI product your roadmap has been promising.
Hear it from the customers
"Koso shipped a custom internal copilot that cut research time in half. Senior engineering, sharp judgement, and code we actually own."
"We brought Koso in for a focused AI build and they outpaced our internal estimates by weeks. The eval discipline was the differentiator."
"Their team designed an AI workflow that now powers creative ops across multiple accounts. Bespoke, on-brand, and genuinely useful."
"Koso built a newsroom assistant tuned to our editorial standards. It saved hours daily without ever feeling like an off-the-shelf tool."

The human behind the AI
Hi, I'm Aashish Pahwa. I founded Koso to build AI the way good software has always been built, bespoke, opinionated, and engineered around the people who actually use it.
Before this, I spent a decade building digital products, growing brands and writing about the internet for millions of readers. I've shipped editorial platforms, marketing engines and consumer apps. Koso is the place where all of that meets custom AI.
Every engagement runs through me. If you work with Koso, you're not getting a sales pod and an account manager. You're getting a small team that thinks like founders and a direct line to the person who started the company.
Not finding what you need? Ask us directly.
Off-the-shelf tools solve one generic problem. We build software around the workflow, the data and the moat that only your business has. You own the code, the agents and the roadmap.
Tell us the workflow, the product or the moat you want to put AI behind. We will tell you exactly what it takes to ship it.