Net Worth Comparison

Dennis Gillings vs Elon Musk

Real-time net worth, career, and company comparison — updated July 2026.

Dennis Gillings

Dennis Gillings

Net Worth
$2.223B
-0.15% today
Elon Musk
Wealthier

Elon Musk

Net Worth
$807.656B
+$805.4B more than Dennis
+1.18% today

Wealth at a Glance

Dennis Gillings$2.223B
Elon Musk$807.656B

Net worth gap: $805.4B — equivalent to 100% of Elon's total wealth.

Tale of the Tape

Dennis Gillings
Elon Musk
$2.223B
Net Worth
$807.656B
#1878
Global Rank
#1
81
Age
54
UNITED KINGDOM
Country
UNITED STATES
Clinical trials
Source of Wealth
Tesla, SpaceX
Healthcare
Industry
Technology
University of Exeter (BSc, PhD), University of Cambridge (Diploma in Mathematical Statistics)
Education
University of Pennsylvania (BA, BS)

Career Highlights

Dennis Gillings

  1. 1971
    Professor at UNC
    Began teaching biostatistics at the University of North Carolina at Chapel Hill.
  2. 1982
    Founded Quintiles
    Founded Quintiles Transnational, a clinical research organization.
  3. 1994
    Quintiles IPO
    Took Quintiles public through an initial public offering.
  4. 2004
    Commander of the Order of the British Empire
    Appointed Commander of the Order of the British Empire (CBE) for services to the pharmaceutical industry.
  5. 2015
    Retired as Executive Chairman of Quintiles
    Retired from the position of Executive Chairman of Quintiles.

Elon Musk

  1. 1995
    Co-founded Zip2
    Co-founded Zip2, an online city guide for newspapers.
  2. 1999
    Co-founded X.com
    Co-founded X.com, which later became PayPal.
  3. 2002
    Founded SpaceX
    Founded Space Exploration Technologies Corp. (SpaceX).
  4. 2004
    Became Chairman of Tesla
    Led the first funding round for Tesla and became its Chairman.
  5. 2008
    Became CEO of Tesla
    Became CEO of Tesla Motors.

Net Worth History

YearDennisElonLeader
2020$1.199B
2022$146B
2023$235.5B
2024$2.2B$839.6BElon
2025$2.2B$839BElon
2026$2.223B$807.656BElon

The Verdict: Elon Musk vs Dennis Gillings

As of July 2026, Elon Musk leads this comparison with a net worth of $807.656B, placing at #1 in the global rankings. Dennis Gillings follows at $2.223B — a gap of $805.4B.

The two leaders come from distinct industries — Healthcare for Dennis Gillings and Technology for Elon Musk. Comparing them is therefore a comparison of different underlying asset types, growth rates, and risk profiles rather than a simple head-to-head within the same market.

Dennis Gillings is 81 years old versus 54 for Elon Musk, a difference of 27 years. Age context matters in wealth comparisons: a younger billionaire at the same net worth has had less time to accumulate — and in many cases represents a higher compound annual growth rate on their wealth.

Net worth figures are estimates calculated from public shareholding disclosures, stock price data, and reported asset values. See our full methodology.