The person behind it
Eric Siu

Eric Siu

Founder of Single Grain · Host of Marketing School & Leveling Up

Eric is an investor, founder, and advisor. He founded Single Grain, the agency that’s grown companies like Amazon, Uber, and Salesforce, and he hosts two of the most-listened-to marketing shows on earth — Marketing School, with Neil Patel, and Leveling Up. He wrote the book on it, literally: Leveling Up.

He didn’t stop playing video games. He just started gaming in real life.

Growing up, Eric wasn’t the academic or the popular kid — he was the gamer. So he took what games taught him (set the quest, stack small wins, level up on purpose) and pointed it at business: first at Treehouse, then consulting for Fortune 500s, then building Single Grain into what it is now. Everything he shares here is a play he’s actually running, written plainly enough to use the same day.

14K+readers
100M+downloads
15+ yrsscaling companies
What we believe

Three rules we play by.

01

Always be leveling up

Becoming the best version of yourself is the most worthwhile game there is. There’s always another level, no matter how far you’ve come.

02

Own it, then tough it out

Grit beats shortcuts. We move fast on the work and stay patient for the payoff — long-term wins pulled out of short-term problems.

03

Vision, backed by tenacity

We see a world of endless growth and possibility — then do the unglamorous work to make it real.

Ready to level up?

The real AI and growth systems we run at Single Grain, broken down so you can copy them. A few times a week, free.

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