Charles de Ganahl Koch was born on November 1, 1935, in Wichita, Kansas. ¹⁾

David Hamilton Koch was born on May 3, 1940, in Wichita, Kansas. ²⁾

David Koch was born alongside his fraternal twin brother, William “Bill” Koch, as the third and fourth sons in the family. ³⁾

Their father, Fred C. Koch, made his initial fortune by developing an improved technique of thermal cracking to convert heavy petroleum into gasoline. ⁴⁾

Fred Koch insisted that his sons work long hours during hot summers to ensure they would not grow up to be lazy “country club bums.” ⁵⁾

Charles Koch attended the Massachusetts Institute of Technology (MIT), earning both a Bachelor of Science and two Master of Science degrees in engineering. ⁶⁾

David Koch earned both his bachelor's and master's degrees in chemical engineering from the Massachusetts Institute of Technology. ⁷⁾

As a standout student-athlete at MIT, David Koch set a school record by scoring 41 points in a single basketball game in 1962. ⁸⁾

Charles, David, and Bill Koch were all members of the Beta Theta Pi fraternity at MIT, where Charles and David also played on the club rugby team. ⁹⁾

When Fred Koch passed away in 1967, Charles took over as president and renamed the Rock Island Oil and Refining Company to Koch Industries in honor of his father. ¹⁰⁾

David Koch joined the family business in 1970 as a technical services manager at Koch Engineering before rising to executive leadership. ¹¹⁾

In 1983, Charles and David Koch purchased the ownership stakes of their brothers Bill and Frederick for $1.1 billion following a bitter legal battle. ¹²⁾

In 1980, David Koch ran as the vice-presidential candidate for the Libertarian Party alongside presidential candidate Ed Clark, receiving over 900,000 votes. ¹³⁾

Charles Koch co-founded the Cato Institute in 1977, establishing a prominent public policy research organization dedicated to free-market principles. ¹⁴⁾

In 1984, the Koch brothers helped launch Citizens for a Sound Economy to organize grassroots advocacy for economic freedom and tax reform. ¹⁵⁾

Citizens for a Sound Economy later split in 2004 into two separate grassroots organizations: FreedomWorks and Americans for Prosperity. ¹⁶⁾

In 1991, David Koch miraculously survived the runway collision of USAir Flight 1493 in Los Angeles, escaping from a burning airplane cabin that took 34 lives. ¹⁷⁾

Diagnosed with prostate cancer in 1992, David Koch battled the illness for decades and subsequently channeled hundreds of millions of dollars into cancer research. ¹⁸⁾

David Koch pledged $100 million in 2008 to renovate the New York State Theater at Lincoln Center, which was renamed the David H. Koch Theater. ¹⁹⁾

David Koch donated $100 million to MIT to construct the David H. Koch Institute for Integrative Cancer Research. ²⁰⁾

David Koch contributed $20 million to the American Museum of Natural History in New York to renovate its dinosaur halls. ²¹⁾

In 2005, Koch Industries acquired consumer product giant Georgia-Pacific for $21 billion, adding brands like Dixie cups and Brawny paper towels. ²²⁾

Charles Koch developed Market-Based Management (MBM), a holistic management framework applying principles of human action and economic science to business operations. ²³⁾

The Koch political and philanthropic donor network reorganized its umbrella advocacy platform under the name Stand Together. ²⁴⁾

Between 2020 and 2022, Charles Koch transferred $5.3 billion of Koch, Inc. nonvoting stock to non-profit organizations to support philanthropic causes. ²⁵⁾

In June 2018, David Koch retired from his executive vice president and board roles at Koch Industries due to declining health. ²⁶⁾

David Koch passed away on August 23, 2019, at age 79, leaving behind a profound corporate and philanthropic legacy. ²⁷⁾

Following David Koch's passing, his widow Julia Koch and their children inherited his 42% ownership stake in Koch Industries. ²⁸⁾

Under Charles Koch's leadership, Koch Industries expanded into America's second-largest privately held company with over $125 billion in annual revenue. ²⁹⁾

In 2023, Charles Koch brought on Dave Robertson as co-CEO of Koch Industries, marking the first time in company history the role was shared. ³⁰⁾

Charles Koch authored “Good Profit,” detailing how applying Market-Based Management principles built one of the world's most successful corporations. ³¹⁾

Charles Koch co-authored the book “Believe in People: Bottom-Up Solutions for a Top-Down World,” advocating social entrepreneurship over top-down governance. ³²⁾

Their father, Fred Koch, was a founding member of the John Birch Society, instilling anti-collectivist political views in his sons. ³³⁾

Before joining Koch Engineering, David Koch worked as a process design engineer for Arthur D. Little and Scientific Design in Massachusetts and New York. ³⁴⁾

Under David Koch's guidance, the process equipment division of Koch Chemical Technology Group expanded its commercial footprint 50-fold. ³⁵⁾

Charles Koch expanded his philanthropic outreach to collaborate with left-leaning groups on criminal justice and prison reform legislation. ³⁶⁾

Through the Charles Koch Foundation, Charles Koch funded thousands of academic research grants and university programs nationwide. ³⁷⁾

In 2024, the parent conglomerate updated its corporate identity from Koch Industries to Koch, Inc. ³⁸⁾

Charles Koch backed foreign policy initiatives advocating restraint, military non-intervention, and peaceful diplomacy abroad. ³⁹⁾

David Koch provided extensive financial support to Johns Hopkins University to establish state-of-the-art medical and cancer research facilities. ⁴⁰⁾

David Koch donated over $150 million to Memorial Sloan Kettering Cancer Center in New York to build a 23-story outpatient medical center. ⁴¹⁾

Charles Koch has served as chairman and chief executive officer of the family business for over 50 consecutive years. ⁴²⁾

In 2004, Koch Industries acquired Invista, the synthetic fibers business from DuPont that produces brands like Lycra and Stainmaster. ⁴³⁾

In 2013, Koch Industries expanded into electronic components by acquiring Molex Inc. for $7.2 billion. ⁴⁴⁾

Throughout its global expansion into an industrial titan, Charles Koch kept Koch, Inc. headquartered in his hometown of Wichita, Kansas. ⁴⁵⁾