---
title: "Labcorp: Business Model & Revenue Engine"
description: "Labcorp revenue by business segment from its fiscal 2025 Form 10-K, with each part's share, growth and profitability explained."
canonical: https://www.getswoopr.com/stocks/companies/labcorp/business-model/
source: "Swoopr Investment: https://www.getswoopr.com"
---

# Labcorp: Business Model & Revenue Engine

## Direct Answer

Labcorp reports revenue across 2 business segments in its fiscal 2025 Form 10-K. Diagnostics is the largest, with $10.9 billion of revenue (78% of the total), followed by Biopharma Laboratory Services at $3.1 billion (22%).

## How Does Labcorp Make Money?

Diagnostics supplies 78% of revenue, so Labcorp's results move mostly with that one business; the others matter more for diversification than for the headline number. Between fiscal 2024 and 2025, Diagnostics grew fastest (+7.2%) and Biopharma Laboratory Services slowest (+6.0%), so the revenue mix tilts toward Diagnostics while that gap lasts.

| Segment | FY2025 revenue | FY2024 revenue | Share of revenue | Change |
| --- | --- | --- | --- | --- |
| Diagnostics | $10.9 billion | $10.1 billion | 78.0% | 7.2% |
| Biopharma Laboratory Services | $3.1 billion | $2.9 billion | 22.2% | 6.0% |

![Bar chart of Labcorp revenue by segment for fiscal 2025: Diagnostics 78.0%, Biopharma Laboratory Services 22.2%.](https://www.getswoopr.com/images/charts/labcorp-business-model-segment-mix.webp)
*Labcorp revenue by segment as a share of total revenue, from the table above. The largest is highlighted. Select the chart to open it full size.*

## Which Labcorp Segments Earn the Most?

| Segment | FY2025 segment operating income | Segment margin |
| --- | --- | --- |
| Diagnostics | $1.8 billion | 16.4% |
| Biopharma Laboratory Services | $499 million | 16.1% |

Segment operating income is the profit measure Labcorp reports to its chief operating decision maker for each segment. It usually leaves out corporate costs that are not allocated to a segment, so the segments usually add up to more than consolidated operating income, and margins are comparable within Labcorp more safely than against another company.

## What the Segment Figures Do Not Show

The rows above add up to 100% of Labcorp's reported revenue for fiscal 2025; the difference is intersegment eliminations, corporate revenue or items the company reports outside its segments. Segment definitions are management's choice and change when a company reorganizes, in which case it restates prior years in the next filing, so a multi-year comparison should use the figures from a single filing. Revenue shows where sales come from, not where profit or cash is earned: a small segment can carry most of the margin.

## Where These Numbers Come From

Every figure on this page is a value Labcorp reported in the segment note and revenue disclosures of its Form 10-K filed February 24, 2026 (accession 0000920148-26-000111), read from the SEC's Financial Statement Data Sets. The prior-year column is the comparative figure from that same filing, so it reflects any restatement for a change in segments. Category names are the company's own XBRL labels, lightly reformatted for reading.

Rows that only total other rows (for example a "Products" line beside the individual products) are left out so nothing is counted twice. This page is educational and describes reported history for fiscal 2025; it is not a forecast or a recommendation.

## Frequently Asked Questions

### What are Labcorp's business segments?

In its fiscal 2025 Form 10-K, Labcorp reports revenue for Diagnostics and Biopharma Laboratory Services.

### Which part of Labcorp brings in the most revenue?

Diagnostics, with $10.9 billion of revenue in fiscal 2025, or 78% of the total.

### Where does Labcorp report its segment results?

In the segment note to the financial statements in its Form 10-K, most recently filed February 24, 2026, alongside management's discussion of each segment's results.

## References

- [SEC EDGAR: LABCORP HOLDINGS INC. Form 10-K filed February 24, 2026](https://www.sec.gov/Archives/edgar/data/920148/000092014826000111/lh-20251231.htm)
- [SEC EDGAR: LABCORP HOLDINGS INC. annual and quarterly filings](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=920148&type=10-K)
- [SEC: EDGAR application programming interfaces (XBRL frames and submissions data)](https://www.sec.gov/search-filings/edgar-application-programming-interfaces)
- [SEC: Financial Statement Data Sets](https://www.sec.gov/data-research/sec-markets-data/financial-statement-data-sets)

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