---
title: "Lab testing companies in the United States: Which are searched most?"
description: "Compare the lab testing companies people in the US use for blood tests and health screening. Share of Search among Labcorp, Quest Diagnostics, Any Lab Test Now, Sonora Quest, Walk-In Lab and Ulta Lab Tests, the lab testing companies Brandwave compares in the United States, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time."
canonical: "https://gobrandwave.com/demand/us/categories/us-lab-testing-companies"
publisher: "Brandwave"
---

# Lab testing companies in the United States: Which are searched most?

Compare the lab testing companies people in the US use for blood tests and health screening. Share of Search among Labcorp, Quest Diagnostics, Any Lab Test Now, Sonora Quest, Walk-In Lab and Ulta Lab Tests, the lab testing companies Brandwave compares in the United States, using the same methodology, market, and reporting period. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

## Key facts

- **Competitive set**: Lab testing companies
- **Market**: United States
- **Brands compared**: 6
- **Month measured**: Sep 2026
- **Highest Share of Search**: Labcorp, 48.3%

## Which brand is most popular in search among lab testing companies in the United States?

- Labcorp and Quest Diagnostics share the highest share of searches among lab testing companies in the United States, at 48.3% in September 2026.
- Across the 12 months ending September 2026, Labcorp’s share of searches among lab testing companies in the United States increased from 43.5% to 48.3%.
- Across the 12 months ending September 2026, Quest Diagnostics’ share of searches among lab testing companies in the United States decreased from 53.1% to 48.3%.
- Across the 12 months ending September 2026, Labcorp’s share of searches among lab testing companies in the United States peaked at 48.5% in November 2025 and was lowest at 43.4% in April 2026.
- Across the 12 months ending September 2026, Quest Diagnostics’ share of searches among lab testing companies in the United States peaked at 53.1% in October 2025 and was lowest at 48.1% in January 2026.
- Across the 12 months ending September 2026, Labcorp rose from 2nd to 1st among lab testing companies in the United States.
- Across the 12 months ending September 2026, Quest Diagnostics fell from 1st to 2nd among lab testing companies in the United States.
- Across the 12 months ending September 2026, Any Lab Test Now, Sonora Quest, Walk-In Lab and Ulta Lab Tests held steady: their share of searches among lab testing companies in the United States each moved less than 0.5 percentage points.

## Top lab testing companies in ChatGPT and Google AI Overviews

In Brandwave's three ChatGPT questions and one Google AI Overview, Labcorp and Quest Diagnostics appeared every time. Labcorp was recommended most often, coming first in two out of three answers that gave a list. Quest Diagnostics was second. Any Lab Test Now, which ranked third in searches, was not mentioned at all.

Brands get a higher AI rank if they are mentioned earlier in the answers that list options.

| Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it |
| --- | --- | --- | --- | --- |
| Labcorp | 1st | 3 of 3 | 1 of 1 | 4 of 4 |
| Quest Diagnostics | 2nd | 3 of 3 | 1 of 1 | 4 of 4 |
| Any Lab Test Now | Not ranked | 0 of 3 | 0 of 1 | 0 of 4 |
| Sonora Quest | Not ranked | 0 of 3 | 0 of 1 | 0 of 4 |
| Walk-In Lab | Not ranked | 0 of 3 | 0 of 1 | 0 of 4 |
| Ulta Lab Tests | Not ranked | 0 of 3 | 0 of 1 | 0 of 4 |

## Every AI answer about lab testing companies

- Asked ChatGPT "Where's the best place to get blood work done?": 1. Labcorp, 2. Quest Diagnostics
- Asked ChatGPT "Which lab testing company is best for routine blood tests?": 1. Quest Diagnostics, 2. Labcorp
- Asked ChatGPT "Where can I order my own blood tests online?": 1. Labcorp, 2. Quest Diagnostics
- Searched Google, AI Overview "lab testing": 1. Labcorp, 2. Quest Diagnostics

Not named in any answer: Any Lab Test Now, Sonora Quest, Walk-In Lab and Ulta Lab Tests.

Brands are listed in the order each answer named them. The answers were collected in United States on October 23, 2026.

## Compare search popularity between leading brands

- [Labcorp vs Quest Diagnostics: compare search popularity](/demand/us/compare/labcorp-vs-quest-diagnostics): 48.3% Share of Search each.

## How did search popularity change for United States lab testing companies in September 2026?

- Estimated monthly branded searches for Ulta Lab Tests in the United States rose 50% over 12 measured months, from 5.4K to 8.1K in September 2026.
- Estimated monthly branded searches for Quest Diagnostics in the United States fell 18.2% over 12 measured months, from 5M to 4.1M in September 2026.
- Estimated monthly branded searches for Any Lab Test Now in the United States fell 18.2% over 12 measured months, from 165K to 135K in September 2026.

## Share of Search ranking

| Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by |
| --- | --- | --- | --- | --- | --- |
| 1 | Labcorp | 48.3% | 4.1M | 0.0% | Labcorp |
| 2 | Quest Diagnostics | 48.3% | 4.1M | 0.0% | Quest Diagnostics |
| 3 | Any Lab Test Now | 1.6% | 135K | 0.0% | Any Lab Test Now |
| 4 | Sonora Quest | 1.6% | 135K | 0.0% | Quest Diagnostics |
| 5 | Walk-In Lab | 0.14% | 12.1K | -33.1% | Walk-In Lab |
| 6 | Ulta Lab Tests | 0.1% | 8.1K | 0.0% | Ulta Lab Tests |

## Historical estimated branded-search demand

| Month | Brand | Estimated monthly branded searches | Share of Search | Rank |
| --- | --- | --- | --- | --- |
| Oct 2025 | Quest Diagnostics | 5M | 53.1% | 1 |
| Oct 2025 | Labcorp | 4.1M | 43.5% | 2 |
| Oct 2025 | Any Lab Test Now | 165K | 1.8% | 3 |
| Oct 2025 | Sonora Quest | 135K | 1.4% | 4 |
| Oct 2025 | Walk-In Lab | 12.1K | 0.13% | 5 |
| Oct 2025 | Ulta Lab Tests | 5.4K | 0.06% | 6 |
| Nov 2025 | Labcorp | 4.1M | 48.5% | 1 |
| Nov 2025 | Quest Diagnostics | 4.1M | 48.5% | 2 |
| Nov 2025 | Any Lab Test Now | 135K | 1.6% | 3 |
| Nov 2025 | Sonora Quest | 110K | 1.3% | 4 |
| Nov 2025 | Walk-In Lab | 9.9K | 0.12% | 5 |
| Nov 2025 | Ulta Lab Tests | 5.4K | 0.06% | 6 |
| Dec 2025 | Labcorp | 4.1M | 48.4% | 1 |
| Dec 2025 | Quest Diagnostics | 4.1M | 48.4% | 2 |
| Dec 2025 | Any Lab Test Now | 135K | 1.6% | 3 |
| Dec 2025 | Sonora Quest | 110K | 1.3% | 4 |
| Dec 2025 | Walk-In Lab | 12.1K | 0.14% | 5 |
| Dec 2025 | Ulta Lab Tests | 6.6K | 0.08% | 6 |
| Jan 2026 | Labcorp | 4.1M | 48.1% | 1 |
| Jan 2026 | Quest Diagnostics | 4.1M | 48.1% | 2 |
| Jan 2026 | Any Lab Test Now | 165K | 1.9% | 3 |
| Jan 2026 | Sonora Quest | 135K | 1.6% | 4 |
| Jan 2026 | Walk-In Lab | 14.8K | 0.17% | 5 |
| Jan 2026 | Ulta Lab Tests | 9.9K | 0.12% | 6 |
| Feb 2026 | Labcorp | 4.1M | 48.3% | 1 |
| Feb 2026 | Quest Diagnostics | 4.1M | 48.3% | 2 |
| Feb 2026 | Any Lab Test Now | 135K | 1.6% | 3 |
| Feb 2026 | Sonora Quest | 135K | 1.6% | 4 |
| Feb 2026 | Walk-In Lab | 12.1K | 0.14% | 5 |
| Feb 2026 | Ulta Lab Tests | 9.9K | 0.12% | 6 |
| Mar 2026 | Labcorp | 5M | 48.4% | 1 |
| Mar 2026 | Quest Diagnostics | 5M | 48.4% | 2 |
| Mar 2026 | Any Lab Test Now | 165K | 1.6% | 3 |
| Mar 2026 | Sonora Quest | 135K | 1.3% | 4 |
| Mar 2026 | Walk-In Lab | 14.8K | 0.14% | 5 |
| Mar 2026 | Ulta Lab Tests | 9.9K | 0.1% | 6 |
| Apr 2026 | Quest Diagnostics | 5M | 53.1% | 1 |
| Apr 2026 | Labcorp | 4.1M | 43.4% | 2 |
| Apr 2026 | Any Lab Test Now | 165K | 1.8% | 3 |
| Apr 2026 | Sonora Quest | 135K | 1.4% | 4 |
| Apr 2026 | Walk-In Lab | 14.8K | 0.16% | 5 |
| Apr 2026 | Ulta Lab Tests | 9.9K | 0.11% | 6 |
| May 2026 | Labcorp | 4.1M | 48.3% | 1 |
| May 2026 | Quest Diagnostics | 4.1M | 48.3% | 2 |
| May 2026 | Any Lab Test Now | 135K | 1.6% | 3 |
| May 2026 | Sonora Quest | 135K | 1.6% | 4 |
| May 2026 | Walk-In Lab | 14.8K | 0.17% | 5 |
| May 2026 | Ulta Lab Tests | 8.1K | 0.1% | 6 |
| Jun 2026 | Labcorp | 4.1M | 48.3% | 1 |
| Jun 2026 | Quest Diagnostics | 4.1M | 48.3% | 2 |
| Jun 2026 | Any Lab Test Now | 135K | 1.6% | 3 |
| Jun 2026 | Sonora Quest | 135K | 1.6% | 4 |
| Jun 2026 | Walk-In Lab | 12.1K | 0.14% | 5 |
| Jun 2026 | Ulta Lab Tests | 9.9K | 0.12% | 6 |
| Jul 2026 | Labcorp | 4.1M | 48.2% | 1 |
| Jul 2026 | Quest Diagnostics | 4.1M | 48.2% | 2 |
| Jul 2026 | Any Lab Test Now | 135K | 1.6% | 3 |
| Jul 2026 | Sonora Quest | 135K | 1.6% | 4 |
| Jul 2026 | Walk-In Lab | 22.2K | 0.26% | 5 |
| Jul 2026 | Ulta Lab Tests | 9.9K | 0.12% | 6 |
| Aug 2026 | Labcorp | 4.1M | 48.3% | 1 |
| Aug 2026 | Quest Diagnostics | 4.1M | 48.3% | 2 |
| Aug 2026 | Any Lab Test Now | 135K | 1.6% | 3 |
| Aug 2026 | Sonora Quest | 135K | 1.6% | 4 |
| Aug 2026 | Walk-In Lab | 18.1K | 0.21% | 5 |
| Aug 2026 | Ulta Lab Tests | 8.1K | 0.1% | 6 |
| Sep 2026 | Labcorp | 4.1M | 48.3% | 1 |
| Sep 2026 | Quest Diagnostics | 4.1M | 48.3% | 2 |
| Sep 2026 | Any Lab Test Now | 135K | 1.6% | 3 |
| Sep 2026 | Sonora Quest | 135K | 1.6% | 4 |
| Sep 2026 | Walk-In Lab | 12.1K | 0.14% | 5 |
| Sep 2026 | Ulta Lab Tests | 8.1K | 0.1% | 6 |

## What is being compared

- **Any Lab Test Now**: Measured on the search term “any lab test now”.
- **Labcorp**: Measured on the search term “labcorp”.
- **Quest Diagnostics**: Measured on the search term “quest diagnostics”.
- **Sonora Quest**: Measured on the search term “sonora quest”.
- **Ulta Lab Tests**: Measured on the search term “ulta lab tests”.
- **Walk-In Lab**: Measured on the search term “walk in lab”.

- [Any Lab Test Now](/demand/us/brands/any-lab-test-now)
- [Labcorp](/demand/us/brands/labcorp)
- [Quest Diagnostics](/demand/us/brands/quest-diagnostics)
- [Sonora Quest](/demand/us/brands/sonora-quest)
- [Ulta Lab Tests](/demand/us/brands/ulta-lab-tests)
- [Walk-In Lab](/demand/us/brands/walk-in-lab)

## Methodology

- [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused.

## Frequently asked questions

### Which brand is most popular in search among lab testing companies in the United States?

Labcorp and Quest Diagnostics share the highest share of searches among lab testing companies in the United States, at 48.3% in September 2026.

## Cite this page

Brandwave. "Lab testing companies in the United States: Which are searched most?". https://gobrandwave.com/demand/us/categories/us-lab-testing-companies

This page is also available as HTML at https://gobrandwave.com/demand/us/categories/us-lab-testing-companies. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.