Thermo Fisher Scientificvs.Waters Corporation
TMO vs WAT · both in Life science tools, part of the Medicine, pharma & life science value chain: Instruments, reagents and equipment for research, development and production.
Thermo Fisher Scientific is about 5.2× larger than Waters Corporation by market cap; Thermo Fisher Scientific trades at the lower P/E (28.6 vs 83.5); year to date, Waters Corporation leads (−0.9% vs −9.0%).
Side by side
| TMO | WAT | |
|---|---|---|
| Market cap | $196B | $37.5B |
| Price | $527.05 | $376.43 |
| Today | +0.4% | −0.2% |
| Return YTD | −9.0% | −0.9% |
| Return 1Y | +22.4% | +6.6% |
| P/E | 28.6 | 83.5 |
| P/S | 4.3 | 9.9 |
| P/B | 3.8 | 2.5 |
Data as of 2026-07-11 · updates daily after U.S. close
The two companies
Thermo Fisher ScientificTMO
American world leader in life science tools — instruments, reagents, consumables and contract manufacturing (Patheon) for research and pharma.
Full TMO profile →Waters CorporationWAT
Analytical instruments (chromatography and mass spectrometry) for pharma and labs.
Full WAT profile →More comparisons in Life science tools
See where TMO and WAT sit in the full Medicine, pharma & life science map — every segment from suppliers to end markets.Open the Life science value chain →