Jack Dangermond Net Worth

Jack Dangermond has an estimated net worth of $9.4 billion, according to Forbes Real-Time Billionaires, Jack Dangermond profile (figures as of October 20, 2026). That is up from $4 billion in 2019.

Jack Dangermond is an American businessman and environmental scientist best known for co-founding Esri and leading it as president. He started the company with his wife Laura in 1969. At first, the business focused on land-use analysis. Over time, it moved into geographic information systems, or GIS, software. That work made Esri a major name in digital mapping, and it built Dangermond's career around tools that help people create and use detailed digital maps.

A big turning point came with ARC/INFO in the early 1980s. Its development and marketing helped Esri take a dominant share among GIS software developers. Esri's flagship product, ArcGIS, grew out of that earlier work. Dangermond also founded GIS Day in 1999, a worldwide event that promotes the use of GIS. Forbes says his current net worth is $9.4 billion on its real-time billionaires tracker as of October 20, 2026.

How Jack Dangermond built his fortune

Dangermond's wealth comes from mapping software. He co-founded Esri in 1969 with $1,100 in personal savings and helped turn it from a land-use analysis business into a GIS software company. GIS is used to create digital maps and study location-based data. That niche became a large business, and Forbes notes that Esri is the industry leader in GIS technology. Because Esri is privately held, its success is closely tied to Dangermond's fortune.

Esri's rise was driven by products that became central to the field. ARC/INFO in the early 1980s helped the company win a dominant position among GIS software developers, and ArcGIS grew from that foundation. Forbes says Esri has about a 40% share of the global geographic information system market. Dangermond also used the company's reach in education, with Esri pledging $1 billion worth of free GIS software to American K-12 schools.

A money picture beyond the headline number

Forbes places Dangermond in the technology industry and describes him as self-made. Its real-time tracker put his wealth at $9.4 billion as of October 20, 2026. That fortune is tied to the value of Esri, the private company he built around digital mapping tools. Because the business serves a specialized but important market, his wealth story is less about many ventures and more about one company gaining a strong position over time.

His money story also includes major giving connected to land and conservation. In 2017, Jack and Laura Dangermond donated $165 million to The Nature Conservancy to preserve 24,000 acres of a coastal ranch in California. Wikipedia also says they signed The Giving Pledge and donated $3 million to the Museum of Redlands fund in 2020. Those gifts fit with a career that began in land-use analysis before Esri became a GIS software leader.