Hey, I'm

Sumanthaka Sumi
Kumar
Selvarasu

I build markets

Co-founder of Buyofuel, India's first pan-India B2B biofuel & biomass marketplace. Enabling the ecosystem that turns India's waste into energy.

01

About

the 10-second story

Self-taught coder at fifteen. Co-founder of Hackowls Software at 22, acquired by QpiAI. Co-founder of Buyofuel since 2020, building the marketplace that moves India's farm waste from open fields into factory boilers.

Along the way, code gave way to marketing, and marketing gave way to markets. These days I run sales, partnerships and the narrative. Engineer by training, seller by trade!

2 startups co-founded 1 acquisition 70+ books collected Countless highway sunrises
Buyofuel Stanford
Sumanth

tap the photos to shuffle ↻

02

Writing

columns, essays and scattered thoughts
EssaySep 26 One of Each Forty-five logos, almost no choices. On what a brand board says about attention, and the five you would actually miss. isumanth.comread → EssayAug 26 Up for It An evening with friends helps every single time. I only go when I am up for it. On the loop that keeps the door shut in exactly the weeks it should open. isumanth.comread → EssayAug 26 Shrink the Clock The busiest week at my company is the last one of the month. On Parkinson's Law, giving the date before asking for the plan, and where that stops working. isumanth.comread → EssayAug 26 Self-taught, Rewritten At fifteen, my teacher was w3schools. Today a fifteen-year-old would just ask AI. What "self-taught" really meant all along. isumanth.comread → ColumnJul 26 Before the Plants, Build the Ecosystem Why compressed biogas needs farm-level biomass aggregation before it needs more plants, and what that means for rural jobs. RenewEdgeread ↗ NoteJan 26 Execution Is the Hardest Currency Real businesses aren't built in dashboards alone. They're built in villages, plants, warehouses and long conversations where incentives don't always align. LinkedInread ↗ NoteMay 25 Not Everything Needs Your Attention Inbox full. Three missed calls. Everything screaming. On choosing what actually deserves a response, even when it all feels urgent. LinkedInread ↗ NoteMay 25 One Year with the Apple Watch Ultra A gadget packed with features, reminders, and the constant urge to move faster. A reflection on what all that tracking actually does to you. LinkedInread ↗ NoteJul 24 A Compass, Not a Scorecard When a tool meant to guide you starts judging every step you take, it stops inspiring. On goals, metrics and the difference between direction and judgement. LinkedInread ↗

more pieces on the way. this list grows as the writing does.

03

Library

pull a book to know my thoughts on it
The Hard Thing About Hard Things
The Hard Thing About Hard ThingsBen Horowitz
Steve Jobs
Steve JobsWalter Isaacson
Elon Musk
Elon MuskWalter Isaacson
Sapiens
SapiensYuval Noah Harari
Indistractable
IndistractableNir Eyal
Hooked
HookedNir Eyal
Romancing the Balance Sheet
Romancing the Balance SheetAnil Lamba
Getting Things Done
Getting Things DoneDavid Allen
Make Time
Make TimeKnapp & Zeratsky
Start With Why
Start With WhySimon Sinek
The First 90 Days
The First 90 DaysMichael Watkins
The Secret
The SecretRhonda Byrne

Not the whole library. Just the few I love the most, the ones I catch myself recommending again and again. Click a spine for my take.

Now → Raising a round for Buyofuel Enriching my knowledge with Stanford Seed Working toward a satisfying work-life balance
04

Contact

a deal, a story, or a book I should read? Let's talk over a coffee or tea, or maybe matcha.

Message sent. It's in my inbox and I'll get back to you.

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