It's been a few years since Google blew up its entire corporate structure to form a new parent company: Alphabet.
The shake-up happened with the idea that it would allow all of its businesses to operate more effectively and efficiently, a move the company was said to be considering for four years. The move allowed CEO Larry Page to step back from day-to-day operations to "focus on the bigger picture."
Now, Alphabet is a massive corporation — ranking in size behind Apple, Samsung, and Microsoft— that encompasses everything from internet-beaming hot air balloons to self-driving cars to Google Cloud.
Here's how all of Alphabet's companies fit under the umbrella.
Google officially became Alphabet in October 2015 with the aim to allow its different businesses to operate independently and move faster. Each division has its own CEO, with Google cofounder Larry Page taking the helm of Alphabet.
There are several companies under Alphabet, but some bigger division include Google, which encompasses several different divisions, and X, which helps get the "moonshot" projects off the ground.
Let's start with the smaller units under Alphabet.
Nest builds smart thermostats and other home devices, like outdoor security cameras. The company was acquired by what is now Alphabet in 2014, and in June of this year, CEO Tony Fadell stepped down but remains within Alphabet. He was replaced by Marwan Fawaz.
Alphabet's Access & Energy division includes Google Fiber, which launched in Kansas City in 2012. Fiber is billed as an alternative high-speed internet and TV service to traditional cable companies and currently has about 200,000 subscribers.
Google's life sciences unit was formerly part of Alphabet's research and development unit, Google X. The unit renamed itself to Verily in 2015 and became a company under the Alphabet umbrella. Verily focuses on healthcare and disease prevention research.
Sidewalk Labs is an Alphabet company founded in 2015 to focus on urban innovation. Led by Dan Doctoroff, Sidewalk Labs aims to find new ways to improve cities through technology. The company is moving into a new space in New York City's Hudson Yards redevelopment.
GV is Alphabet's early-stage venture arm. Formerly known as Google Ventures, GV has $2.4 billion under management and more than 300 companies invested in, including Uber, Flatiron Health, and Slack.
The "think tank" division within Alphabet was spun off into a company called Jigsaw early in 2016. Led by Jared Cohen, Jigsaw uses technology to tackle geopolitical problems like online censorship, extremism, and harassment.
Google Capital is Alphabet's growth equity investment fund. Its mission is purely financial returns, but unlike GV, Google Capital focuses on later-stage startups. Some of its investments include Airbnb, Glassdoor, and Thumbtack.
Google DeepMind focuses on artificial intelligence research. Acquired in 2014 for $500 million, DeepMind has focused on adding artificial intelligence throughout Google products, including search. The DeepMind AI can also teach itself how to play arcade games and can play board games against humans.
There are also a few divisions under Google X, Alphabet's moonshot factory. Google X is helmed by Astro Teller.
Google's Self Driving Car Project has been working for the past 7.5 years to develop fully autonomous vehicles. While it's currently a part of Google X, the self-driving car unit will become its own Alphabet company in 2016. The cars have now driven two million miles, but have not yet become available for commercial use.
Project Loon is a Google X "moonshot" under director Astro Teller. Project Loon aims to bring internet to two-thirds of the world's population using internet-beaming hot air balloons.
Project Wing is also part of Google X. The commercial drone delivery service is set to launch in 2017, but it made headlines in September when it flew Chipotle burritos to Virginia Tech students.
Then there's Google itself. All of Alphabet's "traditional" products — like Chrome, the new Pixel phone, Google Home, and Google Play — are still housed under Google, which is helmed by CEO Sundar Pichai.
YouTube was acquired in 2006 and remains a subsidiary of Google. The video hosting site is run by Susan Wojcicki.
Google's core product, the web search, still falls under the Google umbrella. There are more than 2.3 million Google searches per minute, which adds up to more than 100,000,000,000 Google searches per month.
Google Maps is part of Google's core business and now has more than 1 billion monthly users.
Google's technical infrastructure team aims to make Google's services faster and more reliable for users. The team builds and runs large scale software systems and infrastructure.
Google AdSense lets publishers earn money from online content, placing ads on publishers' webpages. Advertising drives the majority of revenue for Google.
Google Apps for Work include Hangouts, Calendar, Mail, Plus, and Drive. According to Google, millions of businesses are now using the service.