Why Google Celebrates on September 27 — And Why It Isn’t Its True Birthday
Google turns 27 on September 27, 2025, complete with a nostalgic doodle featuring its original 1998 logo. But that date doesn’t line up with its official birthday. The company was actually incorporated on September 4, 1998, by Larry Page and Sergey Brin during their PhD work at Stanford University.
So, why does the company choose to celebrate later in the month? According to Google itself, the origin is rooted in an even earlier milestone: the moment when Andy Bechtolsheim, cofounder of Sun Microsystems, wrote a $100,000 check to Page and Brin. That financial boost—happening in August 1998—is often cited as the moment Google moved from idea to business.
Why September 27 Became the Chosen Date
The choice of September 27 as Google’s “birthday” seems more symbolic than literal. In its early years, the firm marked its anniversary on various days in September, likely connected to internal milestones or product launches.
Beginning in 2006, the company began consistently using September 27. One popular explanation is that it aligns with a key moment in their web indexing efforts or another internal milestone that fell around then. Whatever the original logic, it stuck—and now most people recognize September 27 as Google’s birthday.
From Garage Dream to Global Giant
Whether celebrated on the 4th or the 27th, the day is a chance to reflect on Google’s journey. What began as a Stanford research project evolved into Alphabet Inc., a sprawling tech ecosystem. Google now encompasses products like Gmail, YouTube, Maps, Android, Pixel devices, and its AI ambitions through the Gemini platform.
Though Brin and Page have stepped back from day-to-day roles, they retain voting control through Class B shares. Sundar Pichai leads both Google and Alphabet as CEO.
Why the Anniversary Matters
The discrepancy between Google’s incorporation and its celebration reminds us that “birthdays” of tech startups are often less about legal paperwork and more about narrative. The chosen date becomes part of the company’s identity, helping fans and users rally around a moment of celebration, regardless of the precise reality.
In this case, September 27 has become part of Google lore—a date people now associate with its evolution, innovation, and presence in daily life. The real founding moment might fall elsewhere on the calendar, but the shared story has taken root.