Dan Siroker’s Blog

How Culture Helps You Win

The most important factor in the success or demise of your company is its culture. This is a lesson I learned over…

Stop Launching. Start Rolling Out.

Splashy, big-bang launches were once the most common way software companies released new software…

Why I Hired a CEO

I co-founded Optimizely with Pete Koomen in 2010 with the goal of making experimentation easy. I believed then, as I do now…

A Knock at the Door

It’s easy to ignore oppression if you never meet a victim face-to-face. Most of the world learned of the true horrors of…

Taking a Stand

At Optimizely, we value diversity and inclusiveness. That means more than just talking the talk, it means walking the walk. That is why we’ve decided to take a stand and publicly support immigrants. Here is the email I sent all Optimizely employees:

From: Dan Siroker
To: Team…

Introducing Optimizely X: The Experimentation Platform

Every great invention and scientific discovery was born from experimentation. Take Marie Curie, who was a relentless experimenter. Through experimentation, she became the first woman to be awarded a Nobel Prize, in 1903, for Physics…

Three Timeless Truths Entrepreneurs can Learn from Alexander Hamilton

Optimizely Raises $58 Million to Optimize the World

Every morning, we all wake up to a world that isn’t optimized. Reading the news, commuting to work, ordering coffee, planning a vacation; far too few of these experiences were optimized using data. As a result, our lives are filled with…

Optimizely Named Industry Leader in Online Testing

Optimizely Raises $57 Million to Enable the World to Turn Data into Action

TL;DR

• Raised $57 million in Series B led by Andreessen Horowitz with participation by Benchmark Capital and Bain Capital Ventures.

We Wrote a Book! 202 Pages You Should Visit (Offline)

Ever wonder how optimization and testing is done at Netflix, Etsy, or Dell? Or how Wikipedia, Lumosity and Disney apply lessons they’ve learned through A/B tests to their business? My co-founder, Pete Koomen and I had an incredible…

Optimizely Raises $28 Million to go Global

TL;DR

• Raised $28 million led by Benchmark Capital with participation by Bain Capital Ventures, Battery Ventures, InterWest Partners, and Google Ventures.
• Annual revenue growth rate over 400% and…

Optimizely Surpasses Omniture Test & Target to Become #1 Optimization Platform

Late in the summer, the team took to redesigning the Optimizely site, and it will come as little surprise to anyone reading this that we saw this as an outstanding opportunity for an A/B test of…

Optimizely Surpasses Google Website Optimizer and Raises Money to Battle Omniture

It’s amazing to think how far Optimizely has come in the two years since Pete and I hatched our Y-Combinator-backed testing platform and launched to the world. Needless to say, we’ve had a…