Ayyan Karmakar - Independent Sustainability Consultant

Ayyan Karmakar

Independent Sustainability Consultant

As a results-driven Clean-tech professional with over 11 years of experience, I have a proven track record of leading and innovating within the environmental services and products sector. My journey includes managing products and projects valued at $20 million, consistently delivering exceptional value through operational excellence, strategic planning, and brand building.

In my latest role as Chief Operating Officer at Airvoice (Intelligent CityAir India Pvt. Ltd.), I had successfully established a foundation for operations in India, focusing on market penetration, strategic sales, and operational efficiency. I spearheaded the introduction of Indoor Air Quality (IAQ) and ambient solutions, aligning them with cleantech industry trends to ensure a robust market fit. My efforts have significantly enhanced our industry reach and visibility through presentations at major conferences and summits, generating qualified leads and establishing our thought leadership in the cleantech sector.

Previously, at Oizom Instruments Pvt. Ltd., I played a pivotal role in scaling the company from 100 deployments in 2 countries to over 1500 deployments in 60 countries. My diverse roles included Chief Sales Officer, Chief Marketing Officer, Chief of Staff, and Project Manager, where I led initiatives that transformed our B2B marketing strategy, improved data quality, and drove significant business growth.

I am passionate about creating sustainable solutions and driving innovation in the environmental sector. I thrive in dynamic environments where I can leverage my strategic and operational skills to build high-performing teams and achieve organizational excellence.

Feel free to connect with me to discuss how we can collaborate and drive forward sustainable and innovative solutions in the cleantech industry.

As a person,I am always up for new initiatives and believe in constant learning. When not working, I would be found sipping a coffee and thinking about cricket, Indian politics or a scene from a movie. If in a good mood, I might just be humming a Bollywood song

Signing up on our website is completely free! If you encounter any issues with profile or notice something unusual, please don't hesitate to report it to us. We're here to help ensure a smooth and secure experience.
Founders and startup folks who joined past eChai startup events

The eChai Effect - In Their Words

"eChai has played a truly pivotal role in HummingBird’s journey — even before Day Zero. From ideation to establishment and into growth, it’s been a constant source of support. It connected me with incredible people who’ve become more than just friends. One of the biggest reasons I chose to stay in Ahmedabad is because of the eChai community. It has shaped my growth — both personally and professionally — in ways that are hard to articulate. Honestly, words fall short when I try to express what eChai means to me. I’m deeply thankful and forever grateful to eChai for being such an integral part of my journey."
Harsha Bhurani - Founder, HummingBird Consulting Group
Harsha Bhurani
Founder, HummingBird Consulting Group
"We found eChai to be a force multiplier throughout our startup journey. Through it, we connected with folks from DevX, Allevents, Plutomen, and more - many of whom became friends of IndiaBizForSale.com and even part of our clientele."
Bhavin S Bhagat - Co-founder of Indiabizforsale and IBGrid, TiE Ahmedabad President
Bhavin S Bhagat
Co-founder of Indiabizforsale and IBGrid, TiE Ahmedabad President
"The eChai platform has been super valuable for me - it has helped me gain a deeper understanding of domains in the startup and tech ecosystem. What stands out most is the celebration of knowledge, professional growth, and entrepreneurship - it’s one of the best for the Indian ecosystem. Along the way, I’ve also been fortunate to make some great friendships and connections too."
Shalin (Shawn) Parikh - Founder, MyCPE One
Shalin (Shawn) Parikh
Founder, MyCPE One

eChai Partner Brands

eChai Ventures partners with select brands as their growth partner - working together to explore new ideas, open doors, and build momentum across the startup ecosystem.

Climate Tech
Oizom

Oizom offers Environmental IoT and Environmental Ai solutions for a sustainable future.

Gaming
Zatun Games

Zatun is an award-winning, innovative indie game developer since 2007. We develop our IP and do work for hire.

FoodTech
MealPe

Online Food Ordering Product Suite for Native Audiences

Cloud Telephony
CallHippo

Virtual phone system enhancing productivity, automating workflows, and reducing costs.

CoLiving
Draper Startup House

Living and working spaces for startup communities.

HR Tech and Agencies
Mantras2Success

Hiring and Talent management across multiple countries.