The Filing Desk

Avantor vs Thermo Fisher Scientific

Avantor AVTR · Thermo Fisher Scientific TMO · Life Sciences Tools & Services

Thermo Fisher Scientific reported revenue of $44.6 billion in fiscal 2025, 6.8 times Avantor's $6.6 billion in fiscal 2025. Avantor's revenue fell 3.4% in its latest year, and Thermo Fisher Scientific's grew 3.9%. Avantor had an operating margin of -3.8%, against 17.4% at Thermo Fisher Scientific. Free cash flow was $495 million at Avantor and $6.3 billion at Thermo Fisher Scientific.

Side by side

AvantorThermo Fisher Scientific
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$6.6B$44.6B
Revenue growth−3.4%3.9%
Revenue growth a year, last 5 years0.5%6.7%
Gross margin32.6%—
Operating margin−3.8%17.4%
Net margin−8.1%15.1%
Free cash flow$495M$6.3B
Free cash flow margin7.5%14.1%
Return on capital−2.0%9.1%
Net debt to EBITDA22.0x2.8x
Dividends and buybacks$75M$3.6B
Change in diluted share count−0.2%−1.3%
Last close$17.29$684.89
P/E at the last close—36.8×
Insider trades, last 12 monthsbought $8.7 million, sold $0sold $148.1 million
Piotroski F-score5 of 97 of 8
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.

Ten years

Revenue
US$ billions, fiscal years
AvantorThermo Fisher Scientific
Operating margin
Percent of revenue
AvantorThermo Fisher Scientific
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
AvantorThermo Fisher Scientific

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Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the Avantor and Thermo Fisher Scientific pages.