# Koso | Custom AI Development Agency, Agents & AI Products > Koso is a custom AI development agency building bespoke AI agents, copilots, RAG systems and AI products. First release in production in 4 to 6 weeks. [Skip to content](#main) [](/) [Services](/services)[AI OS](/ai-os)[Training](/training)[Education](/education)[Agents](/agents)[Learn](/learn) … [Book a call ](/book) # Custom AI Built For You [BOOK A CALL • BOOK A CALL • Book a call](/book) We design, engineer and ship bespoke AI OS, agents, copilots and products for teams who refuse to settle for off-the-shelf software. [Start a pilot ](/book)[See our work](#work) Global Clients in the US, UK & Australia Your repo You own every line 120+ AI products shipped 4-6 weeks To first live release Process Automation •Custom AI Solutions •AI Agents •AI Automation •AI Products •AI Copilots •Process Automation •Custom AI Solutions •AI Agents •AI Automation •AI Products •AI Copilots •Process Automation •Custom AI Solutions •AI Agents •AI Automation •AI Products •AI Copilots • ## What Koso does with AI. 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. [Compare every service side by side](/services) AI OSFlagshipCustom AI AgentsAI Product DevelopmentAI Engineering & InfraAI Strategy & RoadmapAI Trainings AI OS ### A custom operating system for your business. 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. * Workflows that run themselves The messy cross-tool processes your team keeps redoing - approvals, handoffs, follow-ups - rebuilt as AI-native flows that just execute. * One brain for the company SOPs, docs, calls, tickets and Slack, all searchable in plain English. New hires ramp in days, not months. * Wired into your stack Slack, HubSpot, Notion, Sheets, Postgres, Zendesk. Your AI OS lives on top of them, not next to them. [Talk to usTalk to us about AI OS](/book)[Explore the AI OS page ](/ai-os)[Explore the AI OS page ](/ai-os)Next: Custom AI Agents Custom AI Agents ### Custom AI agents, engineered for your business. We design and ship bespoke AI agents that live inside your stack and do real work: qualifying leads, drafting replies, updating your CRM, chasing invoices. Not a SaaS subscription. Not a Zapier flow. Production-grade software your engineers can own, built around the workflows only your team has. * Inbound Sales Agent Replies in under 5 minutes, qualifies the lead, books the meeting and logs everything in your CRM. Even at 3am on a Sunday. * Content Engine One brief becomes a blog, 8 social posts, a newsletter and a video script. On-brand, on-tone, on-schedule. * 24/7 Support Agent Deflects 60 to 80% of tier-1 tickets from your docs. Escalates the rest with full context so humans solve in minutes. * Revenue Co-pilot Reads your pipeline, ad spend and product data every morning and tells your team exactly where to push next. [Talk to usTalk to us about Custom AI Agents](/book)[Explore custom AI agents ](/custom-ai-agency)[Explore custom AI agents ](/custom-ai-agency)Next: AI Product Development AI Product Development ### Ship the AI product your roadmap has been promising. Customer-facing copilots, in-app assistants, vertical AI products. We architect the system, train the retrieval, run the evals, and hand you a codebase your team can actually maintain. First production release in 4 to 6 weeks. * AI Copilots in your app Embedded copilots that turn your product's complexity into a conversation. Streaming responses, citations, tool calls, the works. * RAG & Knowledge Systems Production RAG over your docs, tickets and database. Evaluated, monitored, versioned. Not a notebook experiment. * Vertical AI Products New product lines built on AI from day one. We co-build with your team or ship as a dedicated squad. [Talk to usTalk to us about AI Product Development](/book)[Explore AI product development ](/ai-product-development)[Explore AI product development ](/ai-product-development)Next: AI Engineering & Infra AI Engineering & Infra ### The engineering layer most AI projects forget. Evals, observability, prompt versioning, model routing, cost controls, guardrails. We build the unglamorous parts that decide whether your AI works on day 100, not just day 1\. Your CTO will sleep at night. * Evaluation Pipelines Automated evals so every prompt change, model swap or data update is measured before it ships. * Observability & Tracing Full trace of every agent run, tool call and token. Find failures in minutes, not by reading Slack threads. * Model Routing & Cost Control Route to the right model for the job. Cut spend 40 to 70% without losing quality. [Talk to usTalk to us about AI Engineering & Infra](/book)[Explore AI engineering ](/ai-engineering-company)[Explore AI engineering ](/ai-engineering-company)Next: AI Strategy & Roadmap AI Strategy & Roadmap ### Stop burning budget on AI experiments that go nowhere. We have built 120+ AI products. In two weeks we will tell you exactly where AI moves the P&L in your business, what to build first, what to ignore, and how much it should cost. You walk away with a board-ready roadmap, not another slide deck. * Opportunity Audit We shadow your teams, score every workflow on impact × feasibility, and rank the top 10 plays by expected ROI. * Build vs Buy vs Wait For each opportunity: a clear recommendation, a vendor shortlist, and a build estimate so you stop guessing. * 12-Month Roadmap Sequenced plan with budgets, owners and milestones. Defensible to your board, executable by your team. [Talk to usTalk to us about AI Strategy & Roadmap](/book)[Explore AI consulting ](/ai-consulting-company)[Explore AI consulting ](/ai-consulting-company)[All AI consulting services ](/artificial-intelligence-consulting-services)[All AI consulting services ](/artificial-intelligence-consulting-services)Next: AI Trainings AI Trainings ### Hands-on AI training for teams, universities and students. We run practical AI training programs for two audiences: corporate teams who need to build and operate custom AI systems, and universities, colleges and schools who want their students and faculty to become AI-native. No generic theory. Every program is built around real workflows and ends with usable skills. * For teams Operators, PMs and engineers learn to build AI workflows, connectors, evals and agents around the tools your company already uses. * For students Three levels from non-technical AI fluency to shipping real agents, with no coding required at the start and code only when it fits. * For educators AI literacy, pedagogy, assessment and curriculum design for teachers and faculty who have to make sense of it all. [Talk to usTalk to us about AI Trainings](/book)[Corporate training ](/training)[Corporate training ](/training)[Education programs ](/education)[Education programs ](/education) Taking on new builds ## Your tools, finally in sync. 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, and the system gets better the longer it runs. [See the AI OS ](/ai-os)[Book a discovery call](/book) AI OS ## How a build actually goes This is the inbound sales agent we built for a US B2B SaaS company, written up the way it happened. Yours won't go exactly like this, but the shape is usually close. 1. Wk 1 Sat in on their inbound queue for three days. Demo requests landed in a shared inbox and waited about four hours for a reply, mostly because the SDRs were researching every lead by hand before writing back. 2. Wk 2 Cut the scope to inbound demo requests. Partner enquiries and support questions come through the same form, and those stayed with people. 3. Wk 3–4 Nothing shipped. We pulled a few hundred old leads out of HubSpot and had their best SDR mark the ones worth chasing. That became the test the agent had to pass. 4. Wk 5 First version live, with a human in front of it. The agent qualified the lead and drafted the reply, and an SDR approved every email before it went out. 5. Wk 7 Turned on booking, so qualified leads could pick a slot on a rep's HubSpot calendar straight from the first email. 6. Wk 9 Median time to first reply was 6 minutes, down from 4 hours. We still run it with them. ## What We Build AI OSAI Sales AgentsIn-App CopilotsRAG SystemsInternal ToolingCustomer Support AIReporting AgentsVertical AI ProductsEvals & ObservabilityKnowledge BotsAnd anything you can architect. Custom AI, engineered by _Koso_Custom AI, engineered by _Koso_Custom AI, engineered by _Koso_Custom AI, engineered by _Koso_ ## One partner for every layer of your AI ### AI OS A custom operating system for your business: connectors, memory, agents and interfaces layered above your existing tools. ### Custom AI Agents Production-grade agents wired into your data, your tools and your approvals. Shipped behind real evals, not demos. ### In-App Copilots & RAG Copilots that live inside your product. Retrieval, memory and guardrails engineered for your domain - not a wrapper. ### Automation That Compounds Replace six-figure ops headcount with workflows that run 24/7, audit themselves and get sharper every week. ### GEO & AI Distribution Get cited by ChatGPT, Perplexity and Google AI. We engineer the content layer that AI search actually surfaces. ### AI OS A custom operating system for your business: connectors, memory, agents and interfaces layered above your existing tools. ### Custom AI Agents Production-grade agents wired into your data, your tools and your approvals. Shipped behind real evals, not demos. ### In-App Copilots & RAG Copilots that live inside your product. Retrieval, memory and guardrails engineered for your domain - not a wrapper. ### Automation That Compounds Replace six-figure ops headcount with workflows that run 24/7, audit themselves and get sharper every week. ### GEO & AI Distribution Get cited by ChatGPT, Perplexity and Google AI. We engineer the content layer that AI search actually surfaces. ## Selected Work [Talk through a similar build ](/book) 1. −97% B2B SaaS ### 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. 2. 8x Agency ### Shipped a client-facing reporting copilot Built a bespoke AI product that pulls from GA4, Ads and CRM and answers client questions in plain English. 3. +212% E-commerce ### Support team handles 3x ticket volume Tier-1 deflected by a custom agent grounded in the help center, with human handoff on edge cases. ## Built For Teams Like Yours From scrappy startups to enterprises, the products are different. The engineering bar is the same. ### SaaS & Tech In-app copilots, support deflection, retention loops. ### Agencies Custom client tooling, reporting agents, delivery automation. ### E-commerce Catalog AI, conversational CX, post-purchase agents. ### Finance Onboarding, document review, compliance copilots. ### Healthcare Intake, scheduling, clinical assistants within policy. ### Real Estate Lead routing, listing AI, tenant communication agents. ## Plays Nicely With Your Stack \+ the human systems around them OpenAIAnthropicMistralLangGraphVercel AIPineconeSupabasePostgresSlackNotionHubSpotSalesforceStripeLinear ## A Dev Agency That Actually Ships AI 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. * Senior engineers on every project, not juniors learning on your dime * First production release in 4 to 6 weeks, not 6 months * Code, prompts and infra delivered in your repo, on your cloud * Evals and observability baked in from day one [Scope Your Build With Us ](/book) ## Our Customers Already Love Us > "Koso shipped a custom internal copilot that cut research time in half. Senior engineering, sharp judgement, and code we actually own." Priya Raman · Google > "We brought Koso in for a focused AI build and they outpaced our internal estimates by weeks. The eval discipline was the differentiator." Marcus Holt · Microsoft > "Their team designed an AI workflow that now powers creative ops across multiple accounts. Bespoke, on-brand, and genuinely useful." Elena Castro · Ogilvy > "Koso shipped an inbound sales agent that cut our time-to-reply from hours to minutes. Senior engineering, and code we own." VP Revenue Ops · US B2B SaaS ![Aashish Pahwa, founder of Koso](/assets/aashish-CARnh3o6.webp) ## Want to know the human behind this AI system? Hi, I'm [Aashish Pahwa](https://aashishpahwa.com). 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. [Connect on LinkedIn ](https://www.linkedin.com/in/aashishpahwa/)[Follow on Instagram ](https://www.instagram.com/okaashish) ## Frequently Asked Not finding what you need? [Ask us directly](/book). How is this different from buying an AI SaaS? 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. How long until something is in production? Who owns the code and the IP? What about data and security? Which models do you use? Available for new builds ## Let's Build Your Custom AI 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. [Book a free call ](/book)[Get in touch](/book) A custom AI development agency. Bespoke agents, copilots and products engineered for teams that want a moat, not a subscription. Ideanab Private Ltd is a company registered in England and Wales, no. [16344048](https://find-and-update.company-information.service.gov.uk/company/16344048). Registered office: 124 City Road, London, EC1V 2NX, United Kingdom. ### Company * [Services](/services) * [Custom AI Agency](/custom-ai-agency) * [AI Product Development](/ai-product-development) * [AI OS](/ai-os) * [AI Engineering](/ai-engineering-company) * [AI Consulting](/ai-consulting-company) * [AI Consulting Services](/artificial-intelligence-consulting-services) * [Training](/training) * [Education](/education) * [Free AI Agents](/agents) * [Learn AI](/learn) * [Fractional CAIO](/caio) * [About Us](/about) * [The Koso Deck](/deck) * [Careers](/careers) * [Docs for agents](/docs) ### Contact * [Contact us](/contact) * [Book a call](/book) * [LinkedIn](https://www.linkedin.com/company/koso) * [Instagram](https://www.instagram.com/okaashish) ### Legal * [Terms of Service](/terms) * [Privacy Policy](/privacy) * [Cookie Policy](/cookies) * [Acceptable Use Policy](/acceptable-use) * [KosoBot](/bot) © 2026 Koso, a brand of Ideanab Private Ltd. All rights reserved.