How this VC went from Google to a must-read blogger in one of the hottest spaces in tech

When the online eyewear maker Warby Parker opened its first flagship store in New York City, it struggled with declining sales and customer satisfaction ratings.

It was only after it collected some in-store data that it realized something important was missing: hand sanitizers.

"They ran a survey and realized the cause of the decline in sales was that people were coming in with colds and they were coughing and sneezing over the glasses, and so nobody wanted to try them on," Redpoint Ventures partner Tomasz Tunguz told Business Insider. "So they bought some Purell, and all of a sudden, the sales went back up."

Warby Parker's case is one of the many data analytic studies Tunguz has done over the years as a VC. After spending 3 years as a Google product manager, Tunguz has been able to bring his data obsession to the VC world, where he primarily invests in the growing cloud software space, also known as software-as-a-service (SaaS). His personal website at tomtunguz.com is one of the must-read blogs in cloud software, and now he even has a new book about data analysis called "Winning with Data."

"In the future, the only asset that the companies really have to differentiate themselves is data," Tunguz says.

Star VC blogger

Tunguz says his time at Google really helped him hone his data analytics skills. And once he became a VC, it only became clear that his data-driven approach was going to help a ton of startups.

"I was having board meetings with founders, and they were asking data driven questions. But we were all kind of answering them anecdotally," Tunguz says.

That inspired Tunguz to put his findings into his own blog. And now, after years of writing one blog post every weekday filled with all kinds of charts and data, his blog has become one of the most popular destinations in the cloud software space.

It drives roughly 240,000 visitors per month, and as any founder in the SaaS space would tell you, it's required reading, alongside Marc Benioff's book, "Behind the Cloud," Jason Lemkin's SaaStr blog, and Bessemer Ventures' "10 Laws of Cloud Computing."

"The way I think about writing is I try to write a blog that if I were an entrepreneur, and I were 5 years younger, it would be the content that I would want to read," Tunguz says. "I condense the observations that we make as a firm and put it into place that's super helpful."

4 keys to success in cloud software

Every day Tunguz wakes up at 5AM to write his blog post. They cover a vast array of topics, including how the $26 billion Microsoft-LinkedIn deal impacts the rest of the startups and the macro economic implications on startup valuations.

Tunguz says enterprise cloud software is an exciting space because 75% of all VC money flows into the enterprise, while only 15% of the software revenue comes from the cloud vendors. Plus, unlike consumer businesses that use all kinds of different metrics, SaaS companies stick to a certain number of common stats to gauge the health of their businesses, such as annual recurring revenue, customer acquisition cost, and payback period.

Tunguz believes there's still a ton of opportunities in this space and encourages more founders to join the wave. And for those considering to start a cloud software business, Tunguz offered the following four tips to remember:

1. Start with a beachhead customer base: You can't tackle the whole market from the start. Find people who are willing to use your software even before it's fully built, and expand from there.
2. Have a strong go-to-market strategy: Even if you have a killer product, you need to be able to sell in the market. Establish a killer team of sales, customer success, and sales development representatives early on.
3. Understand the unit economics: Numbers don't lie. Have a deep understanding how how much it costs to sign up new customers and how long it takes to make up for that cost.
4. Master the cash flow of the business: Cloud software could have complex contract structures and different payment periods. Make sure you know when you get paid and if possible structure the contract in a way that you would get paid in advance.