Dennis Gillings

Dennis Gillings (#1751)

Global Rank #1751

Country Rank #35

Country United Kingdom

Dennis Gillings is listed among the world billionaires tracked by Iconic Billionaires.

$ 2 B
Clinical trials
United Kingdom
M
82 Years

Snapshot

Quick Facts

Global Rank #1,751

Country Rank #35

Net Worth $2.4B

Previous Worth $2.4B

Worth Change +$0.0B

Country United Kingdom

Industry Clinical trials

Age 82 Years

Gender M

Worth As Of May 4, 2026

Last Refreshed 29 Jul 2026, 12:00 AM

Residence Durham, North Carolina

World Billionaires List United Kingdom Billionaires Clinical trials

Profile Data

Personal Stats

Age 82

Source Of Wealth Clinical trials, Self Made

Residence Durham, North Carolina

Citizenship United Kingdom

Net Worth Change +$0.0B +0.0% from previous worth

Previous Net Worth $2.4B

Current Net Worth $2.4B

Worth as of May 4, 2026

About Me

Dennis Gillings is the founder and former CEO and chairman of clinical research firm Quintiles Transnational, which changed its name to IQVIA in 2017. Gillings, a former biostatistics professor, launched Quintiles in 1982 with the goal of making clinical trials for drugs faster and more efficient. Gillings retired from the board of IQVIA in 2018. Quintiles reached annual revenues of $5.7 billion before merging with healthcare data firm IMS Health in 2016.

Insights

Did You Know?

Gillings received a Commander of the Order of the British Empire from Queen Elizabeth in 2004 for his work in the pharmaceutical industry.

Wealth Growth

Net Worth Growth Over Time

Tracking Dennis Gillings's net worth journey over the years, highlighting key growth phases and financial milestones.

Worth Trend Net Worth Growth

Period Change Worth Movement

Current Net Worth: $2.4B (May 4, 2026)