No Customer Above 5%, Then SilenceWide moat

Thermo Fisher Scientific (TMO) — moat facet

Thermo Fisher used to say no customer exceeded 5% of revenue; since 2020 it has said nothing, which is probably still true and no longer confirmed.

For years Thermo Fisher's 10-K said the same thing about customers: "There is no single customer the loss of which would have a material adverse effect on our business"1, and that no customer accounted for more than 5% of revenue in any of the past three years2. The FY2016 10-K said it too3.

What the 10-K says about customersFY2016 and FY2019no customer above 5%FY2015more than 400,000 customersFY2020 to FY2025no concentration statement2025 revenue$44,556MThermo Fisher Forms 10-K FY2015, FY2016, FY2019, FY2020 and FY2025
The sentence disappeared in 2020.

The FY2020 10-K dropped it, and later filings have not brought it back. The company still says of government work that "no government contract is of such magnitude" that renegotiating or terminating it would have a material adverse effect4.

The base was once described by number. In 2015 the company said it "serves more than 400,000 customers"5. That figure too is no longer repeated.

The likely truth is diversification: revenue of $44,556 million in 20256 spread across laboratories, hospitals and drug companies. But a reader cannot confirm it, and a disclosure that disappears is information of a kind.

The customer count went the same way. The FY2017 10-K still said the company "serves more than 400,000 customers"7; the FY2025 10-K gives no number. A company whose base grew by acquisition since then has no reason to have fewer customers, but it has chosen not to say.

This relationship is wide on revenue as far as can be seen. The check is simple: if a future 10-K names a customer above 10%, the concentration the old sentence ruled out will have arrived. Trailing revenue of $46,336 million8 is the base any such customer would be measured against.

Moat trajectory: Holding steady

No concentration disclosed; revenue spread across more than 400,000 customers when last counted.

The number that tests this moat
Moat Explorer calc
Revenue, trailing twelve months
$46,336M (to June 2026)

The base any large customer would be measured against; a disclosed customer above 10% would end the diversification.

How it's calculated: 2025 revenue ($44,556M) less first-half 2025 ($21,219M) plus first-half 2026 ($22,999M), from the FY2025 10-K and Q2 2026 10-Q.
Source: Moat Explorer calculation from Thermo Fisher filings ↗
References
  1. ReportedFor years Thermo Fisher's 10-K said the same thing about customers: "There is no single customer the loss of which would have a material adverse effect on our business", and that no customer accounted for more than 5% of revenue in any of the past three years.
    Thermo Fisher Scientific Form 10-K for fiscal 2019 - segment income for 2017-2019, geography including China, backlog by segment and the statement that no customer accounted for more than 5% of revenue. — FY2019 · publ. February 2020 · source ↗
  2. ReportedFor years Thermo Fisher's 10-K said the same thing about customers: "There is no single customer the loss of which would have a material adverse effect on our business", and that no customer accounted for more than 5% of revenue in any of the past three years.
    Thermo Fisher Scientific Form 10-K for fiscal 2019 - segment income for 2017-2019, geography including China, backlog by segment and the statement that no customer accounted for more than 5% of revenue. — FY2019 · publ. February 2020 · source ↗
  3. ReportedThe FY2016 10-K said it too.
    Thermo Fisher Scientific Form 10-K for fiscal 2016 - headcount and the statement that no customer accounted for more than 5% of revenue. — FY2016 · publ. February 2017 · source ↗
  4. ReportedThe company still says of government work that "no government contract is of such magnitude" that renegotiating or terminating it would have a material adverse effect.
    Thermo Fisher Scientific Form 10-K for fiscal 2020 - segment revenue for 2018-2020, revenue by type and geography, COVID-19 revenue, headcount and remaining performance obligations. — FY2020 · publ. February 2021 · source ↗
  5. ReportedIn 2015 the company said it "serves more than 400,000 customers".
    Thermo Fisher Scientific Form 10-K for fiscal 2015 - approximately 52,000 employees and more than 400,000 customers. — FY2015 · publ. February 2016 · source ↗
  6. ReportedThe likely truth is diversification: revenue of $44,556 million in 2025 spread across laboratories, hospitals and drug companies.
    Thermo Fisher Scientific Form 10-K for fiscal 2025 - financial statements: income, cash flow, repurchases, debt and equity. — FY2025 · publ. 26 February 2026 · source ↗
  7. ReportedThe FY2017 10-K still said the company "serves more than 400,000 customers"; the FY2025 10-K gives no number.
    Thermo Fisher Scientific Form 10-K for fiscal 2017 - segment revenue and income for 2015-2017, net income and EPS, service revenue, headcount and the FEI, Affymetrix and Patheon acquisitions. — FY2017 · publ. February 2018 · source ↗
  8. Moat Explorer calcTrailing revenue of $46,336 million is the base any such customer would be measured against.
    Moat Explorer calculation from Thermo Fisher's reported financial statements, results releases, earnings calls and market data ($ millions unless stated). Revenue by type: consumables + services share (18,664 + 18,592) / 44,556 = 83.6% (2025); (12,576 + 5,490) / 24,358 = 74.2% (2018); (13,109 + 6,046) / 25,542 = 75.0% (2019); (18,527 + 6,912) / 32,218 = 79.0% (2020); (22,608 + 8,850) / 39,211 = 80.2% (2021); (20,624 + 16,367) / 44,915 = 82.4% (2022); (17,597 + 17,614) / 42,857 = 82.2% (2023); (17,587 + 17,845) / 42,879 = 82.6% (2024); H1 2026 (9,794 + 9,899) / 22,999 = 85.6%. Instruments 7,301 / 7,924 - 1 = -7.9% (2022-2025), a fall of 623. Consumables 18,664 / 17,587 - 1 = 6.1%. Services 18,592 / 17,845 - 1 = 4.2%. Gross margin by type 2025: products (25,965 - 13,405) / 25,965 = 48.4%; services (18,592 - 12,913) / 18,592 = 30.5%; total (44,556 - 13,405 - 12,913) / 44,556 = 40.9%. Businesses: BioProduction 2,652 / 2,923 - 1 = -9.3% (2024), 3,200 / 2,652 - 1 = 20.7% (2025), Q2 2026 941 / 745 - 1 = 26.3%. Biosciences 4,169 / 4,238 - 1 = -1.6%. Transplant 492 / 393 - 1 = 25.2%, Q2 134 / 124 - 1 = 8.1%. ImmunoDiagnostics 912 / 802 - 1 = 13.7%, Q2 248 / 234 - 1 = 6.0%. Clinical diagnostics 1,115 / 1,104 - 1 = 1.0%. Microbiology 645 / 618 - 1 = 4.4% (about 2.2% a year); sale price 1,075 / 645 = 1.7 times; microbiology / Specialty Diagnostics 645 / 4,676 = 13.8%. Research and safety channel 7,440 / 6,841 - 1 = 8.8%, Q2 2,036 / 1,883 - 1 = 8.1%, 7,440 - 6,841 = 599. Healthcare channel 1,788 / 1,712 - 1 = 4.4%, 1,788 / 1,764 - 1 = 1.4% (2025), Q2 442 / 407 - 1 = 8.6%. Laboratory products 2,407 / 2,613 - 1 = -7.9%. Channels (7,440 + 1,788) / 44,556 = 9,228 / 44,556 = 20.7%. Revenue growth: 44,556 / 42,879 - 1 = 3.9% (2025), increase 44,556 - 42,879 = 1,677; 44,556 / 42,857 - 1 = 4.0% (2023-2025); 44,556 / 16,965 = 2.6 times (2015-2025). Research channel share of the increase 422 / 1,677 = 25%. Eliminations / revenue 633 / 16,965 = 3.7% (2015), 2,033 / 44,556 = 4.6% (2025). Life Sciences Solutions sold to other segments 1,593 / 10,374 = 15.4%; external revenue 8,781 / 8,160 - 1 = 7.6%. Pharma services 7,142 / 6,685 - 1 = 6.8%; clinical research 7,915 / 7,836 - 1 = 1.0%; Q2 2026 clinical research 2,396 / 1,955 - 1 = 22.6%. Clinical research + pharma services 7,915 + 7,142 = 15,057, / 44,556 = 33.8% (2025); (7,836 + 6,685) / 42,879 = 33.9% (2024); (7,691 + 6,806) / 42,857 = 33.8% (2023); Q2 2026 2,396 + 1,893 = 4,289, / 11,994 = 35.8%; Q2 2025 1,955 + 1,794 = 3,749. Patheon + PPD + Clario 7,358 + 16,036 + 9,098 = 32,492. Clario price / 2025 revenue 9,098 / 1,500 = 6.1 times; 9,098 / 1,250 = 7.3 times; goodwill 5,934 / 9,098 = 65%. Filtration 3,870 / 750 = 5.2 times. LPBS capital expenditure 1,005 / 1,525 = 65.9%. Revenue per employee 32,218 / 80,000 = about $403,000 (2020); 44,556 / 125,000 = about $356,000 (2025); 356 / 403 - 1 = -12%. Remaining performance obligations 24.61 / 28.30 - 1 = -13.0% (2021-2024); 29.70 / 46.336 = 64% of trailing revenue. 2019 backlog 4,577 / 7,768 = 59%. Trailing twelve months to June 2026: revenue 44,556 - 21,219 + 22,999 = 46,336; net income 6,704 - 3,124 + 3,387 = 6,967. COVID: Life Sciences Solutions segment income 3,420 / 7,817 - 1 = -56%; testing 0.33 / 7.26 = 4.5% remaining. Tax rate 547 / 7,308 = 7.5% (2025); 657 / 7,037 = 9.3% (2024); 284 / 6,298 = 4.5% (2023). R&D 1,397 / 44,556 = 3.1%. Adjusted less GAAP EPS 22.87 - 17.74 = 5.13. Acquisitions booked since 2021: PPD 16,036 + PeproTech 1,864 + European viral vector 830 + Mesa Biotech 472 + The Binding Site 2,699 + CorEvitas 910 + Olink 3,146 + filtration and separation 3,870 + Clario 9,098 = 38,925. Goodwill and intangibles / total assets (54,832 + 18,606) / 113,174 = 73,438 / 113,174 = 65% (June 2026); (49,362 + 15,838) / 110,343 = 59% (end 2025). Genetic sciences 2,870 / 2,787 - 1 = 3.0%. Analytical Instruments 7,554 / 63,400 = 11.9% of the MarketsandMarkets estimate; revenue 7,463 / 7,263 - 1 = 2.8% (2024), 7,554 / 7,463 - 1 = 1.2% (2025), Q2 1,847 / 1,728 - 1 = 6.9%. Market value against Danaher 249.58 / 157.81 - 1 = 58%. China share of revenue 2,060 / 20,918 = 9.8% (2017), 2,752 / 25,542 = 10.8% (2019), 3,444 / 39,211 = 8.8% (2021), 3,793 / 44,915 = 8.4% (2022). Year-end P/E = market value / net income: 56.61 / 1.975 = 28.7 (2015), 55.74 / 2.022 = 27.6 (2016), 76.14 / 2.225 = 34.2 (2017), 90.09 / 2.938 = 30.7 (2018), 130.27 / 3.696 = 35.2 (2019), 184.61 / 6.375 = 29.0 (2020), 262.92 / 7.725 = 34.0 (2021), 215.98 / 6.950 = 31.1 (2022), 205.08 / 5.995 = 34.2 (2023), 198.99 / 6.335 = 31.4 (2024), 217.70 / 6.704 = 32.5 (2025), trailing 249.58 / 6.967 = 35.8. Segment margins = segment income / segment revenue: Life Sciences Solutions 1,414 / 4,774 = 29.6% (2015), 2,446 / 6,856 = 35.7% (2019), 7,817 / 15,631 = 50.0% (2021), 3,420 / 9,977 = 34.3% (2023), 3,503 / 9,631 = 36.4% (2024); Analytical Instruments 613 / 3,208 = 19.1% (2015), 1,027 / 4,821 = 21.3% (2017), 1,273 / 5,522 = 23.1% (2019), 808 / 5,124 = 15.8% (2020), 1,908 / 7,263 = 26.3% (2023); Specialty Diagnostics 873 / 3,244 = 26.9% (2015), 1,024 / 4,763 = 21.5% (2022); LPBS 922 / 6,372 = 14.5% (2015), 1,271 / 12,245 = 10.4% (2020), 1,844 / 14,862 = 12.4% (2021), 2,872 / 22,511 = 12.8% (2022), 3,358 / 23,041 = 14.6% (2023), 3,090 / 23,157 = 13.3% (2024). Segment shares 2025: Life Sciences Solutions income 3,768 / 10,109 = 37.3%, revenue 10,374 / 46,589 = 22.3%; LPBS external revenue 23,818 / 44,556 = 53.5%. Combined segment margin 10,109 / (44,556 + 2,033) = 10,109 / 46,589 = 21.7%. Segment growth: Life Sciences Solutions 10,374 / 9,631 - 1 = 7.7% (2025), Q2 2026 2,815 / 2,499 - 1 = 12.6%; Specialty Diagnostics 4,676 / 4,512 - 1 = 3.6% (2025), Q2 1,205 / 1,134 - 1 = 6.3%; LPBS 23,984 / 23,157 - 1 = 3.6% (2025), Q2 6,693 / 5,995 - 1 = 11.6%. Ten-year compound growth 2015-2025: Life Sciences Solutions (10,374 / 4,774)^(1/10) - 1 = 8.1%; Specialty Diagnostics (4,676 / 3,244)^(1/10) - 1 = 3.7%; LPBS (23,984 / 6,372)^(1/10) - 1 = 14.2%. Additional: return on equity 6,704 / ((53,407 + 49,584) / 2) = 13.0% (2025). Instruments share 6,292 / 24,358 = 25.8% (2018), 3,305 / 22,999 = 14.4% (H1 2026). Life Sciences Solutions segment income Q2 1,041 / 919 - 1 = 13.3%. Services share 2,297 / 16,965 = 13.5% (2015), 18,592 / 44,556 = 41.7% (2025). Service gross margin (17,614 - 12,589) / 17,614 = 28.5% (2023), (17,845 - 12,654) / 17,845 = 29.1% (2024); product (25,034 - 12,523) / 25,034 = 50.0% (2024). LPBS growth 23,984 - 23,157 = 827 = 457 + 422 - 118 (laboratory products) + 79 (clinical research) - 13 (eliminations). Eliminations 3,010 / 39,211 = 7.7% (2021). Europe 11,826 / 10,741 - 1 = 10.1%; North America 23,033 / 22,764 - 1 = 1.2% (2023-2025). Headcount 125,000 / 122,000 - 1 = 2.5%. Electron microscopy 2,957 / 2,564 - 1 = 15.3%. Net debt end 2025 39,380 - 9,852 - 253 = 29,275. Goodwill added 54,832 - 45,853 = 8,979 (end 2024 to June 2026). Specialty Diagnostics best annual margin 910 / 3,339 = 27.3% (2016). Intersegment shares 2025: 201 / 7,554 = 2.7%, 72 / 4,676 = 1.5%, 167 / 23,984 = 0.7%. COVID response less testing 2021: 9.23 - 7.26 = 1.97 billion. Buyback gain 675.00 / 482.66 - 1 = 40%. Olink goodwill 2,301 / 3,146 = 73%. Life Sciences acquisitions 1,342 + 1,864 + 3,146 + 3,870 = 10,222; segment revenue 10,374 - 4,774 = 5,600. Instrumentation market (92.53 / 63.4)^(1/6) - 1 = 6.5%. Healthcare channel 1,788 / 4,676 = 38%. LPBS segment income Q2 936 / 825 - 1 = 13.5%. Interest cover 7,746 / 1,419 = 5.5 times. EPS 17.74 / 4.92 = 3.6 times. One-point price cut 7,440 x 1% = 74, / 3,350 = 2.2%. Laboratory products 2,407 - 2,525 = -118. Clinical diagnostics Q2 290 / 276 - 1 = 5.1%. Revenue 44,556 - 32,218 = 12,338 (2020-2025). Healthcare channel 1,764 / 1,712 - 1 = 3.0% (2024). Tax at 11.5% instead of 7.5%: 7,308 x 4% = 292. Microbiology Q2 166 / 159 - 1 = 4.4%. Pharma services 6,685 / 6,806 - 1 = -1.8% (2024). Clinical diagnostics 1,115 / 4,676 = 23.8%. Revenue per employee 20,918 / 70,000 = about $299,000 (2017); 25,542 / 75,000 = about $341,000 (2019). Research and safety channel 7,019 / 6,841 - 1 = 2.6% (2024), 7,440 / 7,019 - 1 = 6.0% (2025). Backlog 7,768 / 5,087 - 1 = 52.7% (2019). Restructuring 362 / 7,746 = 4.7%. Laboratory products Q2 608 / 601 - 1 = 1.2%. Services 18,592 / 17,614 - 1 = 5.6%, cost of services 12,913 / 12,589 - 1 = 2.6% (2023-2025). Life Sciences Solutions internal share (9,977 - 8,545) / 9,977 = 14.4% (2023). Biosciences 4,169 / 10,374 = 40.2%. COVID share 6.63 / 32.218 = 20.6% (2020), 9.23 / 39.211 = 23.5% (2021). R&D 1,397 / 1,337 - 1 = 4.5%. Segment income / total assets 10,109 / 110,343 = 9.2%. ImmunoDiagnostics 912 - 802 = 110; clinical diagnostics 1,115 - 1,104 = 11. Restructuring 459 / 6,859 = 6.7% (2023). Microbiology 645 / 44,556 = 1.4%. Laboratory products 2,613 / 23,041 = 11.3% (2023), 2,407 / 23,984 = 10.0% (2025). Clario 0.45 x 371.5 = about 167, / 9,098 = 1.8%. LPBS capex / segment income 1,005 / 3,350 = 30%; Life Sciences Solutions 152 / 3,768 = 4.0%. Equity / assets 52,686 / 113,174 = 46.6%. Clinical research 7,915 / 44,556 = 17.8%. Eliminations Q2 565 / 501 - 1 = 12.8%. Instruments 7,301 / 6,292 - 1 = 16.0%. Revenue per employee 18,274 / 55,000 = about $332,000 (2016). Healthcare channel 1,788 / 44,556 = 4.0%. China 2,797 / 32,218 = 8.7% (2020). RPO 29.70 - 27.92 = 1.78 billion - revenue by type, company growth, backlog and other ratios. — 2015-2026 · publ. September 2026 · source ↗
    Method: Arithmetic on figures reported in Thermo Fisher's Forms 10-K and 10-Q, results releases, earnings calls, MarketsandMarkets and market data; operands shown in the source line.
Sources
Generated September 28, 2026