Nathan Blecharczyk and Greg Hayes: Who They Are

You searched for two names and got two unrelated biographies. That isn’t a glitch. Nathan Blecharczyk and Greg Hayes lead very different worlds, yet their names keep landing in one query. This guide explains who each man is, where the pairing comes from, and what their careers have in common.

Why Nathan Blecharczyk and Greg Hayes Show Up Together

No joint company, deal, or partnership connects them. Instead, the pairing seems to come from list-style pages. For example, a Who’s Who style tech directory places the Airbnb co-founder and the former United Technologies chief on the same page, along with dozens of other executives. Search engines notice that proximity and treat it as a relationship.

So the honest answer is simple. Nathan Blecharczyk and Greg Hayes are two accomplished executives who share a directory, not a business. Still, the contrast makes them worth studying together. One built a company from an air mattress idea, while the other steered a century-old industrial giant through a megamerger.

Nathan Blecharczyk: The Engineer Behind Airbnb

Blecharczyk was born in 1983 and studied computer science at Harvard. He ran a software business in high school that served clients in more than 20 countries, long before he wrote a line of code for Airbnb. He later worked as an engineer at companies including Microsoft and OPNET.

His entry into the company was almost casual. Joe Gebbia, his former roommate, brought him in to build the website for the idea Gebbia and Brian Chesky had been testing. The trio launched it as Airbed & Breakfast, and the rest became startup folklore.

As the first chief technology officer, he built the engineering, data science, payments, and performance marketing teams. Then, in early 2017, he moved into the chief strategy officer role. Later that year, he also became chairman of Airbnb China.

His recent work leans toward trust and policy. He oversaw the Airbnb City Portal, reservation screening technology, and the launch of Airbnb-friendly apartments. In November 2025, Common Sense Media added him to its board of directors. He and his wife also signed the Giving Pledge in 2016.

Greg Hayes: The Finance Chief Who Became an Aerospace CEO

Hayes took the opposite route. He holds an economics degree from Purdue and is a certified public accountant. He joined United Technologies in 1999 through its merger with Sundstrand, then spent years in finance before moving up.

He served as chief financial officer from 2008 to 2014. After that, he became CEO, and in 2016 he added the chairman title. His defining move came in April 2020. He led the merger of Pratt & Whitney and Collins Aerospace with Raytheon to form RTX.

He handed the CEO job to Chris Calio in May 2024 and stayed on as executive chairman. He left the chairman role and the board effective April 30, 2025. He then served as special advisor to the CEO through January 2, 2026. Many online bios still list his old titles, so check dates before you quote them.

How the Careers of Nathan Blecharczyk and Greg Hayes Compare

A quick side-by-side shows how different the two paths are:

• Origin: Blecharczyk co-founded his company from scratch. Hayes climbed inside an established corporation.
• Training: Blecharczyk is a software engineer. Hayes is an accountant who learned operations on the job.
• Signature move: Blecharczyk built a global marketplace. Hayes merged two industrial giants.
• Scale: Airbnb reports more than 2 billion guest arrivals. RTX, under Calio, reports over 185,000 employees and more than $80 billion in annual sales.
• Today: Blecharczyk remains a co-founder, CSO, and director at Airbnb. Hayes has left RTX and serves on other boards.

Think of it this way. Blecharczyk resembles an architect who designed the building and still walks its halls. Hayes resembles a veteran manager who renovated a skyscraper while tenants stayed inside.

What Nathan Blecharczyk and Greg Hayes Teach Founders and Executives

Their careers offer three practical lessons.

1. Technical depth pays off. Blecharczyk’s engineering background let him build Airbnb’s payments and trust systems himself instead of outsourcing the hard parts.
2. Financial discipline supports bold deals. Hayes spent six years as CFO before he led the RTX merger. As a result, he understood the numbers behind the biggest decision of his career.
3. Roles should evolve. Blecharczyk moved from CTO to CSO as Airbnb matured. Similarly, Hayes planned his own exit through a staged handoff to Calio.

In other words, neither man stayed in one lane. Each adapted as the company changed.

Where Each of Them Stands Today

Blecharczyk still sits inside Airbnb’s leadership as co-founder, chief strategy officer, and director. He also serves on the Common Sense Media board, which signals a growing focus on online safety for families.

Hayes has moved into governance. He joined BD’s board in 2025, sits on the Phillips 66 board, and chairs the National Academy Foundation. In fact, his post-RTX career looks like a typical late-career pivot toward board work and education.

Frequently Asked Questions

Are Nathan Blecharczyk and Greg Hayes business partners?
No. I found no joint company, investment, or partnership. Blecharczyk works at Airbnb, while Hayes led United Technologies and then RTX.

Who is Nathan Blecharczyk?
He is a co-founder of Airbnb and its chief strategy officer. He was also its first CTO and later became chairman of Airbnb China.

Who is Greg Hayes?
He is the former CEO of United Technologies and then RTX. He led the 2020 merger that created RTX and left the company’s board in April 2025.

Why do people search for Nathan Blecharczyk and Greg Hayes together?
Most likely because list pages, such as executive directories, place both names together. Search engines then link them, even without a real-world connection.

Is Greg Hayes still CEO of RTX?
No. Chris Calio became CEO in May 2024. Hayes left the RTX board in April 2025 and finished as special advisor in January 2026.

What is Nathan Blecharczyk’s role at Airbnb now?
He is co-founder, chief strategy officer, and a board director. He leads strategy across policy, product, and data.

Final Takeaway

The search for Nathan Blecharczyk and Greg Hayes leads to two separate stories, and both are worth knowing. One man built a platform from a spare-room idea, and the other guided an aerospace giant through its biggest merger. If you’re researching leaders for a speech, a case study, or a pitch, check each company’s official leadership page for current titles. Then come back to this comparison for the bigger picture.