Thermo Fisher Scientific (TMO) vs UnitedHealth Group (UNH)
Thermo Fisher Scientific (TMO) and UnitedHealth Group (UNH) side by side: both in Healthcare, both listed on New York Stock Exchange. UnitedHealth Group is the larger of the two by approximate market capitalization (about 1.5×).
| Field | Thermo Fisher Scientific | UnitedHealth Group |
|---|---|---|
| Legal name | Thermo Fisher Scientific Inc. | UnitedHealth Group Incorporated |
| Ticker | TMO | UNH |
| Exchange | New York Stock Exchange XNYS | New York Stock Exchange XNYS |
| Jurisdiction | United States | United States |
| Sector | Healthcare | Healthcare |
| Industry | Life-science tools & diagnostics | Health Insurance |
| Market cap ≈ | $230bn | $352.7bn |
| Founded | 2006 | 1977 |
| Reporting currency | USD | USD |
| LEI | HCHV7422L5HDJZCRFL38 | 549300GHBMY8T5GXDE41 |
| ISIN | US8835561023 | US91324P1021 |
| FIGI | BBG001S5WS08 | BBG001S6WCJ1 |
| Index membership | S&P 500 | S&P 500 |
| Held by (covered funds) | — | — |
Thermo Fisher Scientific
The largest supplier of laboratory instruments, reagents and services to pharmaceutical and research customers, formed by the 2006 merger of Thermo Electron and Fisher Scientific.
UnitedHealth Group
Largest US health insurer plus Optum health-services and data platform.
What they share
Same indices: S&P 500
Market caps are computed from each issuer's own filed share count times the close on 2026-08-28, not copied from a vendor; LEI from GLEIF (CC0), ISIN read from each issuer's own primary listing document with its ISO 6166 check digit validated, FIGI from OpenFIGI, MIC from the ISO 10383 registry — full provenance on Sources. Not real-time, not investment advice. Both sides as data: /api/v1/companies/thermo-fisher · /api/v1/companies/unitedhealth