# Custom AI Agency | Bespoke AI Agents, Copilots & Systems | Koso > Koso is a custom AI agency building bespoke AI agents, copilots and AI systems for teams that refuse off-the-shelf software. Custom AI development shipped in weeks, not quarters. [](/) [Services](/#services)[AI OS](/ai-os)[Training](/training)[Education](/education)[Agents](/agents)[Learn](/learn) … [Book a call ](/book) Custom AI Development Agency # Bespoke AI, built for your team. Koso is a custom AI development agency. We design, engineer and ship bespoke AI agents, copilots and AI operating systems for teams who refuse to settle for off-the-shelf software. [Book a discovery call ](/book)[See what we build](#capabilities) 120+ AI products shipped 50k+ People trained 20+ Institutions & enterprises 4 wks To first production ship ## Custom AI, end to end. One senior team covering strategy, design, engineering and operation. No handoffs to partners you've never met. Everything we ship is production-grade software your team can own. Agents ### Custom AI agents Bespoke agents that own an outcome - qualify leads, draft replies, chase invoices, monitor ops. Not chatbots. Software that ships work. Copilots ### In-app AI copilots Embedded copilots for your product. Streaming, citations, tool calls, evals - production-grade from day one. AI OS ### AI Operating Systems One coordinating brain above your CRM, sheets, inbox and docs. Workflows, memory, agents and reporting wired together. Automation ### Autonomous workflows Cross-tool processes rebuilt as AI-native flows. Less context switching, fewer manual handoffs, real time back to your team. ## Custom AI that actually behaves like software. | Capability | Generic AI SaaS | Templated agencies | Koso | | ------------------------------------ | --------------- | ------------------ | ---- | | Custom to your workflows | | | | | You own the code, prompts and data | | | | | Production evals and observability | | | | | Wired into your existing stack | | | | | Ships in weeks, not quarters | | | | | Senior engineers, not a rotating pod | | | | | One team: strategy, build, operate | | | | ## How your custom AI gets built 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. ## A custom AI development team, wherever your business runs. Koso partners with teams across India, the US, UK and Australia. Async by default, on-site when it moves the work faster. Time zones stop being an excuse when the AI is shipping while you sleep. India United States United Kingdom Australia ## A dev team that actually ships AI. ### 120+ AI products shipped Across ops, sales, support, product, education and content. ### Production-grade by default Evals, observability, guardrails and cost controls on every build. ### Bespoke, never templated No agent farms. Every system is scoped to your workflows and data. ## Before you ask. Why call Koso a custom AI development agency?+ Because everything we ship is scoped to your business. No templated agents resold across clients, no wrappers on top of one prompt. We architect, build and operate custom AI - agents, copilots and systems - the same way a great product team would. Who do you typically work with?+ Growth-stage companies, enterprises and ambitious founders across India, the US, UK and Australia. Ops, sales, support and product teams that want a real AI moat instead of another SaaS subscription. What does a project usually cost?+ Scoped by modules and complexity. Most builds land between a mid-market SaaS renewal and a senior engineering hire, with clear line items per module. Full proposal within 48 hours of the first call. Do we own what you build?+ Yes. You own the code, the prompts, the infra config and the data model. If you ever want to take it fully in-house, we hand it over clean. How is this different from a generic AI consultancy?+ Consultancies write decks. We ship software. Strategy, engineering and operation live under one roof, so there is nothing to hand off to a partner you have never met. ## Ready for AI that's yours? Tell us where the work lives. We'll come back in 48 hours with a scoped plan - modules, timeline and cost - for your custom AI build. [Book a discovery call ](/book)[See the AI OS](/ai-os) 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) © 2026 Koso, a brand of Ideanab Private Ltd. All rights reserved. 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