Category Archives: English essay

Let’s get straight to the main point. By the way, I excluded newsletters published by SaaS companies (e.g., ChartMogul’s SaaS Roundup, etc.) 1. SaaStr It is a newsletter provided by SaaStr, the world’s most prestigious SaaS-related community. It no longer operates a landing page where you can sign up for its Newsletter alone as before,Continue reading “10 SaaS newsletter startup founders must subscribe”

Hi. This is Mark, former McKinsey consultant and current VP Operations of Sendbird, as you may remember. My family and friends call me Sang-hee, Lee. Over the past ten years, I have been using the name Mark Lee. Finally, I will revert my legal name back to the name of Sang-hee today on April 20th,Continue reading “It’s me, Mark Lee, and now, my name is Sang Hee”

In the previous article, “Storytelling Framework for SaaS Metrics”, I pointed out ‘Year-over-year ARR Growth Rate’ is the first important indicator of SaaS Startups. According to McKinsey & Company, maintaining a high ARR growth rate, especially as a startup scales after the product-market fit, is a key factor leading to continued the successful revenue growthContinue reading “Path to $100m of Top 140 SaaS Unicorn Businesses: “How Quickly Does a Startup Have to Grow?””

As of 2020, startup founders or early members are regarded as iconic individuals that people and media are enthusiastic about. This is why even the growing pains behind the scenes are often romanticized. If you’re in a fast-growing startup, after attracting a large round of funding and working as a founder or early member, IContinue reading “Growing Pains: The Law of Startup Physics and Psychological Injury”

Professor Clayton M. Christensen, best known for his theory on “disruptive innovation,” recently died on Jan 23 in 2020. Since then, many articles reminiscent of his life lessons have circulated. “How Will You Measure Your Life?” is my favorite article among them. “How Will You Measure Your Life?” If Clayton’s method of cultivating outstanding managersContinue reading “My Answers to "How Will You Measure Your Life?" – Clayton M. Christensen, 1 of 3”

SendBird, which we started in 2015, has grown to an API / Enterprise Software that powers approximately 1 million chat users worldwide. During this exponential growth, one of our key accomplishments happened when we successfully entered the U.S. market as a foreign startup entity. Many people started to pay attention to us because it wasContinue reading “SaaS Content & Product Marketing to Build ARR from $0 to $10 m”

Many startup founders in the SaaS industry are asked to use data metrics for different purposes such as fundraising, board meetings, and regular KPI reviews. As a result, there is an incredible amount of content available online about SaaS metrics and their underlying definitions. However, few articles explain how companies can leverage their data metricsContinue reading “Storytelling Framework for SaaS Metrics”

I’ve conducted more than 200 job interviews since May of 2015 for applicants at SendBird. Given our steep growth rate over the past two years, these interviews have been happening with more frequency. At the end of the interview, I always try to spare time to listen to the candidate and answer any questions theyContinue reading “Why I joined SendBird and Why do I stay?”