Karan Vaidya, CTO of Composio, on 10×'d ARR with 50 people
Karan went looking for a coach right after Composio closed its Series A. He wanted one who would understand him as a CTO. Since then ARR is up 10× and Composio is handling 10 million tool calls a day, and the team is still about 50 people.
Since I started coaching, our velocity has improved because the team can have harder conversations directly
Karan wrote about his experience working with a Titan Coach on LinkedIn
See it on LinkedIn →The founder and the company
Who is Karan Vaidya?
Karan Vaidya is the co-founder and CTO of Composio, the San Francisco company that gives AI agents managed access to the software tools their teams already use. He graduated from IIT Bombay with a BTech in computer science in 2017, spent two years as a software engineer at Rubrik and was the second hire at Nirvana Insurance before starting Composio in 2023.
Who founded Composio?
Composio was founded in 2023 by Soham Ganatra, its CEO, and Karan Vaidya, its CTO. The two met at a physics olympiad camp in 2012, became roommates at IIT Bombay and tried an earlier venture together in 2019. The company is headquartered in San Francisco and keeps an engineering team in Bengaluru, where it started.
What is Composio?
Composio is the action execution layer for AI agents: a platform that lets an agent sign in to and act in tools such as GitHub, Slack and Salesforce, with managed authentication and sandboxed execution. Its open-source SDK has more than 30,000 GitHub stars. As of October 2026 Composio serves 500+ customers, including AWS, Zoom and Glean, and handles 10 million tool calls a day.
How much funding has Composio raised?
Composio has raised $29 million. A $4 million seed round was co-led by Together Fund and Elevation Capital, and a $25 million Series A led by Lightspeed Venture Partners was announced in July 2025, with Guillermo Rauch and Dharmesh Shah among the angel investors. At the time of the raise the company reported more than 100,000 developers building on the platform.
Does Karan Vaidya work with an executive coach?
Yes. Karan Vaidya works with an executive coach from Titan, which matches Series A to C founders with coaches who have built or run companies at scale. He wanted a technical coach who understood the CTO job and was matched with a former CTO of two public companies who took both through IPO. Since he started coaching, Composio has grown ARR 10× with a team of about 50 people.
From the conversation
Why did you start looking for a coach?
I first started thinking about getting a coach when we closed our Series A, when we were planning to scale the team. In my case I always wanted a technical coach who could understand me as a CTO, the type of decisions I have to make day in, day out.
What makes your coach credible?
My coach has been CTO of two publicly traded companies. He took two IPOs and then was a CEO as well, so he has a mix of technical and leadership prowess. The thing I like most is that he goes deep into the problems I'm facing. He doesn't just give me a solution, he teaches me how to solve at a generic level.
What do you bring to a session?
Almost anything and everything I'm facing. People problems, organizational issues, conflicts with the leadership, or even my co-founder. Whatever is going on in my mind, I'll be a clean slate and bring it to my coach.
What changed for you?
Before I started with my coach I was not the most candid person at giving hard feedback. He recommended Radical Candor and we had a bunch of discussions around it. I used to think that if I cared about a person I would not want them to feel bad. It's the other way around. If I care a lot about that person, I'll give them candid feedback and make them improve.
How has it changed the way you lead?
One of the things my coach always says is that people can rally only behind stories, they can't rally behind facts. So whenever I come across a problem where I have to align people, I try to frame a story and tell them. It's easier to remember a story and tell it coherently again and again.
What has it meant for the company?
Since I started coaching our velocity has improved, because the team can have much harder conversations directly rather than taking a zigzag route to the outcome. Before Titan I felt coaching was pretty high level and I didn't know what impact it would have on my day to day. After working with my coach I can definitely see the benefits.
Full transcript
Karan Vaidya, Co-Founder and CTO of Composio, in conversation with Titan. Lightly edited for clarity.
Building the action execution layer for AI agents
Hey, I'm Karan, co-founder and CTO of Composio. We are the action execution layer for AI agents. We actually started in Bangalore. We had some early access to the GPT models and we could see that this is probably the biggest wave that we'll have in our lifetime. That was the starting point where we started thinking about what to do next.
The signal that it was working
We posted our solution and it was a tremendous response, where even when our solution was half-baked, people just started using it. That usage gave a signal of product-market fit.
Composio today
Today, Composio is around 30+ folks. We have 500+ customers, including customers like AWS, Zoom, Glean, building their top-tier agents on top of Composio.
Why he got a coach
I first started thinking about getting a coach when we closed our Series A, when we were planning to scale the team. In my case, I always wanted a technical coach who can understand me as a CTO. My coach has been CTO of 2 publicly traded companies. He took 2 IPOs and then a CEO as well, which makes him pretty incredible.
What changed
Since I started coaching, I definitely feel our velocity has improved because the team can have harder conversations directly. Before Titan, I definitely felt coaching was pretty high level, where I didn't know what impact it would have on my day-to-day. But after Titan, and after working with my coach, I can definitely see the benefits.
Growth
From the start of this year, we have literally 5x'd the revenue, and the projection for the rest of the year is to 5x again. We are doing 10 million tool calls a day, and in 6 months we'll be doing 200 million tool calls a day. And that is the data flywheel that we are creating. In terms of the growth potential, the last 2 years, which were automating coding, created companies like the Cursors of the world. And this next 2 years, hopefully it will be Composio.
Karan Vaidya and Composio: quick facts
| Role | Co-founder and CTO, Composio (since 2023) |
|---|---|
| Company founded | 2023, San Francisco; engineering team in Bengaluru, where the company started |
| Co-founder | Soham Ganatra, CEO. The two met at a physics olympiad camp in 2012 and were roommates at IIT Bombay |
| Education | BTech in computer science, IIT Bombay (2017) |
| Previously | Software engineer at Rubrik (2017 to 2019); founding product manager and engineer, the second hire, at Nirvana Insurance (2021 to 2023) |
| Team | About 50 people across San Francisco and Bengaluru (October 2026) |
| Customers | 500+, including AWS, Zoom and Glean; 10 million tool calls a day, projected to reach 200 million within six months (October 2026) |
| Growth | ARR up 10× since Karan started working with his Titan coach (October 2026) |
| Open source | The Composio SDK on GitHub, 30,000+ stars |
| Funding | $29 million in total: a $4 million seed co-led by Together Fund and Elevation Capital, then a $25 million Series A led by Lightspeed Venture Partners (announced July 2025) |
| Investors | Lightspeed Venture Partners, Elevation Capital, Together Fund; angels including Guillermo Rauch and Dharmesh Shah |
| Links | LinkedIn · kvaidya.com · composio.dev · GitHub |