B2B SaaS
Cut SDR time-to-reply from 4h to 6 min
−97%
Custom inbound sales agent qualifies leads, drafts personalised first touches, and books meetings inside HubSpot.
Koso is a custom AI development agency. We design, engineer and ship bespoke AI agents, copilots and products for teams who refuse to settle for off-the-shelf software.
120+
AI products shipped
4 to 6
Weeks to production
98%
Client retention
12+
Senior engineers
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 ✦
CAPABILITIES · 05
Five disciplines, one philosophy: ship custom AI software that produces business outcomes, not demos.
Koso · 26.Q2 // V 2.01
What Koso
Does With
AI
Active · Custom AI Agents · Built bespoke
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.
/01
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.
/02
Content Engine
One brief becomes a blog, 8 social posts, a newsletter and a video script. On-brand, on-tone, on-schedule.
/03
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.
Available · Q3 onboarding
Talk to us about Custom AI AgentsHow We
Work
A four-step rhythm built for compounding outcomes, not slide decks. Scroll to follow the flow.
01
Discover
We map your workflows, surface the highest-ROI use case, and pick the slice of work where custom AI compounds the most value.
→ handoff
02
Design
Architecture, retrieval strategy, tool access, evals, guardrails and approval points. Defined before a single line of code.
→ handoff
03
Build
Custom code, custom models, custom integrations across your stack. Iterated weekly with your team in the loop.
→ handoff
04
Operate
Monitor, evaluate, refine, expand scope. Your AI system gets sharper the longer it runs and the code stays yours.
01
Discover
We map your workflows, surface the highest-ROI use case, and pick the slice of work where custom AI compounds the most value.
02
Design
Architecture, retrieval strategy, tool access, evals, guardrails and approval points. Defined before a single line of code.
03
Build
Custom code, custom models, custom integrations across your stack. Iterated weekly with your team in the loop.
04
Operate
Monitor, evaluate, refine, expand scope. Your AI system gets sharper the longer it runs and the code stays yours.
What We Build
AI Sales AgentsIn-App CopilotsRAG SystemsInternal ToolingCustomer Support AIReporting AgentsVertical AI ProductsEvals & ObservabilityKnowledge BotsAnd anything you can architect.
Custom AI, engineered by KosoCustom AI, engineered by KosoCustom AI, engineered by KosoCustom AI, engineered by Koso
Selected Work
All case studiesAgency
Shipped a client-facing reporting copilot
8x
Built a bespoke AI product that pulls from GA4, Ads and CRM and answers client questions in plain English.
E-commerce
Support team handles 3x ticket volume
+212%
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 themOpenAIAnthropicMistralLangGraphVercel 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
Hear it from the customers
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."
"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
Want to know the human
behind this AI system?
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.
Frequently Asked
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.
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.