Masayoshi Son and Greg Hayes Inside the SoftBank and RTX Leadership Story

Masayoshi Son and Greg Hayes built influential careers in very different parts of the global business world. Son became one of Japan’s best-known technology entrepreneurs through SoftBank, while Hayes spent decades in aerospace, industrial management, finance, and corporate strategy.

Their names can appear together in discussions about major business leaders, technology, infrastructure, and corporate transformation. However, there is no publicly established direct partnership between the two men. Their professional stories are better understood as two separate leadership journeys that crossed similar themes, including technology, investment, large-scale operations, and strategic change.

Son founded SoftBank in 1981 and continues to lead SoftBank Group as Chairman and CEO. His recent strategy has placed artificial intelligence, computing infrastructure, Arm, and other advanced technologies at the center of the company’s future.

Hayes, meanwhile, became a major figure at United Technologies before helping create RTX through the 2020 combination of United Technologies’ aerospace businesses with Raytheon. He later served as RTX’s Chairman, President, and CEO before moving into a transition role and leaving the company’s board in 2025. Their careers therefore offer an interesting comparison between founder-led technology investing and professional corporate leadership.

Quick Bio of Masayoshi Son and Greg Hayes

Detail	Masayoshi Son	Greg Hayes
Full Name	Masayoshi Son	Gregory J. Hayes
Known For	Founder and leader of SoftBank	Former RTX Chairman and CEO
Date of Birth	August 11, 1957	Public records identify him as born in 1960
Nationality	Japanese	American
Main Industry	Technology, telecommunications, investment	Aerospace, defense, industrial management
Major Company	SoftBank Group	RTX / United Technologies
Current 2026 Role	Chairman & CEO of SoftBank Group	Former RTX executive
Major Leadership Position	SoftBank Group Chairman & CEO	Former RTX Chairman and CEO
Education	University of California, Berkeley	Purdue University
Professional Background	Entrepreneur and investor	Finance and corporate executive
Major Achievement	Building SoftBank into a global technology investment group	Helping create and lead RTX
AI and Technology Focus	Strong strategic focus on AI and advanced computing	Technology through aerospace and industrial businesses
RTX Connection	None publicly established	Central figure in RTX’s formation
Corporate Style	Founder-led and investment focused	Executive-led and operationally focused
Public Profile	Global technology entrepreneur	Former aerospace and defense executive

Who Are Masayoshi Son and Greg Hayes?

Masayoshi Son is the founder and longtime leader of SoftBank Group. He established Nihon SoftBank in 1981 and guided the company through several major changes in the technology industry. SoftBank originally developed around software distribution and later expanded into telecommunications, internet businesses, investments, and technology assets. Over time, Son became known for making large strategic bets on companies and technologies that he believed could shape the future.

SoftBank’s own corporate biography identifies Son as its Representative Director, Corporate Officer, Chairman, and CEO. The company also lists him as Chairman and Director of Arm Holdings. Greg Hayes followed a different path. Rather than founding his own technology company, he developed his career within a major industrial organization. He joined United Technologies Corporation in 1999 and held senior roles in finance, corporate strategy, and business development.

Hayes eventually became UTC’s CEO in 2014 and Chairman in 2016. His career later became closely connected with the creation of RTX, one of the largest aerospace and defense companies in the world.

Masayoshi Son’s Early Life and Career

Masayoshi Son was born on August 11, 1957, in Japan. His interest in technology developed early, and his experiences in the United States influenced his ambitions as an entrepreneur.

Son attended the University of California, Berkeley. During his time in the United States, he became increasingly interested in computers and the potential of digital technology. That interest eventually shaped his career. In 1981, Son founded Nihon SoftBank, which later became SoftBank Group. The company initially focused on software distribution. However, Son did not keep SoftBank limited to that market. He repeatedly expanded into new areas as technology changed.

SoftBank later moved into internet businesses, telecommunications, and large-scale investments. Son’s approach centered on identifying technologies and companies that could benefit from long-term changes in society. That strategy made him an unusual figure in corporate Japan. Instead of following a conventional industrial model, he built SoftBank around the idea that information technology would continue transforming everyday life.

Greg Hayes’ Path Into the Aerospace Industry

Greg Hayes developed his professional career through finance and corporate management. He earned a bachelor’s degree in economics from Purdue University and became a certified public accountant. His connection with United Technologies began in 1999 when he joined the company through its merger with Sundstrand Corporation. Hayes held several senior positions during his career at UTC. His responsibilities included finance, strategy, and business development.

He became UTC’s Chief Financial Officer in 2008. That position gave him a detailed understanding of the company’s financial structure and operations. In 2014, Hayes became CEO of United Technologies. Two years later, he became chairman.

His tenure became particularly important because UTC underwent major strategic changes under his leadership. The company sold or separated several businesses while placing greater emphasis on aerospace. That process eventually led toward the creation of RTX.

The Rise of Masayoshi Son and SoftBank

SoftBank’s history reflects Son’s willingness to change the company’s direction as technology markets evolved. The company moved from software distribution toward telecommunications and internet businesses. It also became a major investor in technology companies around the world.

One of Son’s most significant investments was Alibaba. SoftBank’s investment in the Chinese e-commerce company became one of the most famous technology investments in corporate history. SoftBank also acquired Arm Holdings, the British semiconductor and intellectual property company. Arm’s technology is used extensively in processors across smartphones, consumer electronics, automobiles, data centers, and other devices.

Son’s leadership has increasingly focused on artificial intelligence. SoftBank’s 2026 corporate materials describe AI and artificial superintelligence as central to the group’s long-term strategy. This represents another major shift in Son’s career. SoftBank is no longer primarily viewed as a telecommunications or software company. Its identity increasingly revolves around technology investment and AI-related infrastructure.

How Greg Hayes Became a Key RTX Leader

Greg Hayes played a central role in the corporate transformation that created RTX. Before the merger, Hayes led United Technologies. Under his leadership, UTC moved toward a more focused aerospace strategy. The company sold Sikorsky Aircraft in 2015 and acquired Rockwell Collins in 2018. It also separated Otis Elevator Company and Carrier Corporation in 2020.

These transactions changed the structure of United Technologies considerably. The most important step came in 2020, when UTC’s remaining aerospace businesses, including Pratt & Whitney and Collins Aerospace, combined with Raytheon. The resulting company became Raytheon Technologies and was later renamed RTX. Hayes became CEO of the combined company. His leadership therefore became closely associated with one of the largest corporate combinations in the aerospace and defense industry.

SoftBank’s Business Strategy Under Masayoshi Son

Son’s strategy has consistently focused on long-term technological change. Rather than concentrating only on established markets, SoftBank has often invested in businesses that Son believes could become important in the future. That approach can involve significant risk. Technology markets change quickly, and large investments can experience major increases or decreases in value.

Still, the strategy has given SoftBank a distinctive position among global investment groups. In recent years, Son has placed artificial intelligence at the center of his vision. SoftBank’s 2026 materials describe the company’s goal of becoming a major platform provider for the emerging era of artificial superintelligence.

The company has also increased its focus on AI infrastructure. SoftBank has discussed large-scale computing and data-center initiatives as part of its broader AI strategy. This direction shows how Son continues to reposition SoftBank around the next technological cycle.

RTX and Greg Hayes’ Approach to Corporate Leadership

Hayes’ leadership style developed within a very different environment. RTX operates in aerospace and defense, where businesses must manage complex engineering programs, manufacturing systems, government relationships, safety requirements, and long development cycles.

Hayes therefore worked within an organization where strategic decisions could affect thousands of employees, suppliers, customers, and major industrial programs. His years at UTC also involved substantial restructuring.

The transformation of UTC before the RTX merger required difficult decisions about which businesses belonged within the company’s long-term strategy. The eventual combination with Raytheon created a company with three major business areas: Collins Aerospace, Pratt & Whitney, and Raytheon. RTX later described Hayes as a leader who helped reshape UTC and guided the company through the formation of RTX.

What Connects Masayoshi Son and Greg Hayes?

There is no publicly documented family relationship between Son and Hayes. There is also no authoritative evidence showing that they jointly founded or operated a company. Their connection is primarily one of comparison. Both became influential leaders of very large multinational organizations. Both dealt with industries where technology plays a major role. Both also made strategic decisions that changed the direction of the companies they led.

However, their roles were fundamentally different. Son is a founder and major shareholder who has maintained long-term control over SoftBank. Hayes developed through a professional corporate career and became a senior executive within United Technologies. Son’s leadership has focused heavily on investment and emerging technologies. Hayes’ leadership focused more on corporate restructuring, aerospace operations, mergers, and long-term industrial strategy. That difference makes their stories useful for understanding two distinct models of corporate leadership.

Their Roles in the Global Business Landscape

SoftBank and RTX operate in different industries, but both are connected to important global technology trends. SoftBank operates primarily around technology investments, telecommunications, artificial intelligence, semiconductors, and digital infrastructure.

RTX focuses on aerospace and defense through Collins Aerospace, Pratt & Whitney, and Raytheon. Modern aerospace increasingly depends on advanced computing, sensors, communications, artificial intelligence, and semiconductor technology. At the same time, AI infrastructure depends on enormous amounts of computing power, networking equipment, data centers, and advanced chips.

These overlapping technology requirements help explain why leaders from seemingly different industries can appear in broader discussions about technological transformation. Still, the companies remain separate businesses with different ownership structures, markets, customers, and strategic priorities.

Masayoshi Son’s Technology and Investment Vision

Son’s long-term vision has repeatedly centered on the idea that technology can reshape society. His interest in computing began decades ago. Since then, his business career has moved through several major technology waves. SoftBank’s expansion into telecommunications connected the company with the growth of mobile communications. Its investments in internet companies reflected the rise of online commerce and digital services.

Arm represented another major shift toward semiconductor technology. Now, artificial intelligence has become the central theme in Son’s public corporate strategy. In a 2026 message, Son described AI as evolving toward artificial superintelligence and said he wanted SoftBank to become a leading platform provider in that era. That vision remains one of the defining features of SoftBank’s current strategy.

Greg Hayes and the Evolution of RTX

Hayes’ most important corporate achievement was not the creation of a technology investment platform. Instead, it involved transforming an established industrial company and helping combine major aerospace businesses.

The formation of RTX changed the structure of the companies involved. Raytheon brought major defense capabilities, while United Technologies contributed businesses such as Pratt & Whitney and Collins Aerospace.

The combination created a diversified aerospace and defense company with capabilities spanning aircraft engines, avionics, communications, sensors, weapons systems, and other technologies.

Hayes led RTX during its early years and through a major period of integration. His CEO tenure ended in May 2024 when Christopher Calio became President and CEO. Hayes then served as Executive Chairman. That role also ended in April 2025, when Hayes stepped down from the RTX board.

Major Business Decisions and Leadership Challenges

Both Son and Hayes faced major challenges during their careers. For Son, the biggest challenges have often involved capital allocation. SoftBank’s investment strategy can produce enormous gains, but technology investments can also lose value rapidly.

The company’s Vision Fund era demonstrated both sides of this model. Some investments became highly valuable, while others experienced significant difficulties. Son responded by emphasizing discipline, asset values, and a renewed focus on AI and technology infrastructure.

Hayes faced a different set of challenges. His career involved managing large industrial businesses through mergers, divestitures, supply-chain issues, changing market conditions, and the complex integration of major aerospace operations.

The RTX merger itself required significant organizational coordination. The company also operates in sectors where safety, government contracts, engineering reliability, and regulatory requirements are critical. Therefore, Hayes’ leadership environment demanded a different form of risk management from Son’s investment-focused model.

SoftBank, RTX, and the Changing Technology Landscape

Technology increasingly connects industries that once operated separately. Artificial intelligence is now influencing telecommunications, manufacturing, aerospace, defense, transportation, healthcare, and finance. SoftBank has positioned itself closer to the investment and infrastructure side of this transformation.

RTX, meanwhile, applies advanced technology to aerospace and defense systems. That does not mean SoftBank and RTX share a corporate strategy. Instead, they represent different parts of a wider technology ecosystem. Semiconductors, computing, communications, sensors, robotics, and AI can influence multiple industries at the same time.

Son’s career shows how an investor can attempt to position a company around those changes. Hayes’ career shows how a large industrial organization can restructure itself around changing technology and market demands.

How Their Leadership Styles Compare

Masayoshi Son and Greg Hayes developed different leadership approaches because their professional circumstances were different. Son’s style is closely associated with entrepreneurship, long-term investment, and bold technology bets. He has remained deeply involved in SoftBank’s strategic direction for decades. His founder status also gives him an unusual level of influence over the organization. Hayes developed through a more traditional corporate path.

His experience in accounting and finance helped prepare him for senior executive responsibilities. He eventually became responsible for major industrial businesses and large-scale corporate transactions.

Son tends to be associated with future-oriented technology investments. Hayes became known for restructuring businesses and creating a more focused aerospace organization. Neither career follows the same model. Their stories instead demonstrate how different forms of leadership can shape multinational companies.

Public Profiles and Professional Influence

Son has maintained a high public profile for decades. His investments in Alibaba, Arm, telecommunications, and other technology businesses have made him one of the most recognizable Japanese business leaders internationally. SoftBank’s performance has also made Son a frequent subject of financial and technology reporting.

Hayes has received more attention within the aerospace and corporate world. His career at United Technologies and RTX placed him at the center of major aerospace transactions and organizational changes. His profile increased significantly during the creation of RTX, particularly because the transaction combined two major American aerospace businesses. After leaving RTX, Hayes continued his corporate career through board and advisory work rather than remaining a day-to-day aerospace CEO.

What Is Known About Their Personal Lives?

Public information about both executives focuses primarily on their professional careers. Son has been a public figure for many years because of his position at SoftBank. However, reliable corporate biographies generally emphasize his business career, education, and leadership positions rather than providing extensive details about his private life.

The same principle applies to Hayes. Most authoritative information about him concerns his professional experience, education, corporate positions, and role in the formation of RTX.

For a business profile, it is therefore more useful to focus on their documented careers rather than repeat uncertain personal claims found on low-quality biography websites. This approach also helps separate verified information from speculation.

Masayoshi Son and Greg Hayes’ Professional Legacy

Son’s legacy is closely connected with SoftBank’s transformation from a software company into a global technology and investment group. His most significant decisions often involved positioning the company around technologies he believed could define the next generation.

Arm and artificial intelligence are particularly important parts of that story. Hayes’ legacy is closely connected with the restructuring of United Technologies and the formation of RTX. His leadership helped move UTC toward a more focused aerospace business before the combination with Raytheon.

He then became the first CEO of the newly formed RTX. Although their industries differ, both men left clear marks on the companies they led. Their careers also show how corporate strategy can change dramatically when leaders identify a new direction.

Interesting Facts About Masayoshi Son and Greg Hayes

Masayoshi Son founded Nihon SoftBank in 1981, meaning his leadership connection with the company spans more than four decades. He also played an important role in SoftBank’s investment in Alibaba, one of the most famous technology investments in the company’s history.

Son has also maintained a major connection with Arm after SoftBank acquired the semiconductor company. By 2026, artificial intelligence had become a central part of Son’s stated long-term strategy. Greg Hayes, meanwhile, joined United Technologies in 1999 through its merger with Sundstrand.

He later became CFO, CEO, and chairman of UTC. Hayes played a central role in the creation of RTX in 2020. He became RTX’s Executive Chairman in 2024 after leaving the CEO position. He stepped down from RTX’s board in April 2025 and subsequently moved beyond the company’s executive leadership structure. These facts demonstrate how different career paths can lead to major influence in global business.

Conclusion

Son built SoftBank from a software-focused company into a major technology and investment group. His career has followed the development of computers, telecommunications, internet businesses, semiconductors, and now artificial intelligence.

Hayes followed a corporate management path through United Technologies and became a central figure in the formation of RTX. His leadership was closely tied to aerospace restructuring, major transactions, and the creation of a large global aerospace and defense company.

There is no strong public evidence of a direct partnership between the two executives. Instead, their stories provide an interesting look at how different leaders can respond to technological change.

Son continues to lead SoftBank into an AI-focused future, while Hayes has moved beyond his RTX executive career. Together, their professional histories illustrate two distinct paths to influence in the modern global business landscape.

Frequently Asked Questions

Are Masayoshi Son and Greg Hayes business partners?

There is no publicly documented direct business partnership between Masayoshi Son and Greg Hayes. Their names are better understood as two prominent executives associated with different multinational companies.

What company does Masayoshi Son lead?

Masayoshi Son is Chairman and CEO of SoftBank Group. SoftBank’s current strategy places significant emphasis on artificial intelligence, advanced computing, Arm, and technology investments.

Is Greg Hayes still with RTX?

Greg Hayes left RTX’s board on April 30, 2025. He then served as Special Advisor to the CEO through January 2, 2026. He is no longer the company’s CEO or chairman.

Who replaced Greg Hayes as RTX CEO?

Christopher T. Calio succeeded Hayes as RTX President and CEO in May 2024. Calio later became Chairman of the RTX Board in April 2025.

What was Greg Hayes’ biggest achievement at RTX?

One of Hayes’ defining achievements was leading the formation and early development of RTX after United Technologies combined its aerospace businesses with Raytheon in 2020.

What is Masayoshi Son best known for?

Son is best known as the founder and longtime leader of SoftBank. He is also known for major technology investments, including SoftBank’s investment in Alibaba and its ownership of Arm.

Do SoftBank and RTX have the same business model?

No. SoftBank operates primarily in technology investment, telecommunications, AI, and related areas. RTX is an aerospace and defense company operating through Collins Aerospace, Pratt & Whitney, and Raytheon.

Why are Masayoshi Son and Greg Hayes discussed together?

They can be discussed together because both have led major multinational organizations and have been involved in technology-driven corporate transformation. However, their companies, industries, and leadership paths are different.

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