Dave Goldberg, Chief Executive Officer of SurveyMonkey died on Friday night at the age of 47, his family announced on Saturday.
"It's with incredible shock and sadness that I'm letting our friends and family know that my amazing brother, Dave Goldberg, beloved husband of Sheryl Sandberg [Facebook’s Chief Operating Officer], father of two wonderful children, and son of Paula Goldberg, passed away suddenly last night," Robert Goldberg wrote.
Sheryl Sandberg, one of the America’s most recognizable female executives, had credited her husband Dave for much of her success in her book “Lean In.”
Following his death, friends and many other executives took on social media to pay their tributes to Goldberg.
Facebook CEO Mark Zuckerberg was among the people to pay his tributes as he described Goldberg as "an amazing person."
"Kindest, most generous, loving father, loyal husband, great ceo, & sweetest friend," tweeted Salesforce CEO Marc Benioff. "May his memory be a blessing."
Former Yahoo executive Goldberg had joined SurveyMonkey, which helps organizations conduct surveys, in 2009 when it was a small company with a handful of employees.
Now, SurveyMonkey is valued at $2 billion and backed by many billion dollar companies including Google.
"Dave's genius, courage and leadership were overshadowed only by his compassion, friendship and heart," the company said in a statement. "His greatest love was for his family. Our sympathy goes out to them and to all who were touched by this extraordinary man."