More about Marek Roostar
Marek has 20 years of B2B sales & marketing experience. Last 10 years he’s been working with innovative technology start-ups like Timbeco (smart construction), Cleveron (robotics) and Elcogen (cleantech & renewables). He is true believer in process thinking and enthusiast of personality psychology.
Marek’s main role has been to drive growth of start-ups on export markets. In some cases, it involved leading the changes inside the company, in some cases it involved international marketing and sales strategy development and in some cases it involved communications and branding formation.
Marek's current role is to drive growth of Elcogen - an Estonian cleantech start-up, one of the leading European hydrogen technologies (SOFC/SOEC) developer and manufacturer. Winner of Innovation at European Business Awards 2019, Innovator of Estonia 2020. Marek' customer portfolio includes global brands from energy, automotive and utility industries, mostly from Japan, S-Korea, China and USA markets.
Marek’s main role has been to drive growth of start-ups on export markets. In some cases, it involved leading the changes inside the company, in some cases it involved international marketing and sales strategy development and in some cases it involved communications and branding formation.
Marek's current role is to drive growth of Elcogen - an Estonian cleantech start-up, one of the leading European hydrogen technologies (SOFC/SOEC) developer and manufacturer. Winner of Innovation at European Business Awards 2019, Innovator of Estonia 2020. Marek' customer portfolio includes global brands from energy, automotive and utility industries, mostly from Japan, S-Korea, China and USA markets.
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.
Featured speaker at previous eChai events:
Founders and startup folks who joined past eChai startup events
The eChai Effect - In Their Words
“When we launched LegalWiz.in back in 2016, concept of procuring legal and compliance services through a digital commerce platform wasn't as prominent in India. eChai played a significant role in providing the early adopters, and building significant positioning in the startup fraternity. Overtime, eChai grew to be a massive network of like-minded entrepreneurs and extended that benefit to all the members in a true "co-rise" spirit. I personally love to attend eChai events, learn from subject matter experts who share relatable and actionable insights and experiences. For startup journeys, it is so important to be surrounded by people who can add relevance, perspective, and push you to do better. Most importantly a group of people where you aren't being judged about things going right or wrong, but be a motivational force that keeps you going, yet keeping you in check. eChai is that place for me!”
Shrijay Sheth
Founder at LegalWiz.in and Hire4Higher Consulting
"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
"From late-night brainstorming over chai to early morning founder calls, eChai has been more than just a network for me; it’s been home base for ideas, impact, and inspiration. What started as a simple meetup years ago turned into a powerful movement, connecting founders, creators, and dreamers. I’ve had the privilege of seeing startups find product-market fit, marketers (like me) find unexpected collaborations, and most importantly, people finding their tribe. संगच्छध्वं संवदध्वं – Let us move together, speak together. It’s not just a verse from the Rigveda — it’s how Jatin and the entire eChai community truly operate. We don’t just network, we grow together. Forever grateful to be a part of the eChai Effect.
Jaydip Parikh
Chief Everything Officer at Tej SolPro
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.
