--- title: "Labcorp vs Sonora Quest: Which is searched more in the United States?" description: "Is Labcorp or Sonora Quest more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Lab testing companies set in the United States. 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/compare/labcorp-vs-sonora-quest" publisher: "Brandwave" --- # Labcorp vs Sonora Quest: Which is searched more in the United States? Is Labcorp or Sonora Quest more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Lab testing companies set in the United States. 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 - **Compared**: Labcorp and Sonora Quest - **Competitive set**: Lab testing companies - **Market**: United States - **Month measured**: Sep 2026 - **Labcorp Share of Search**: 48.3% - **Sonora Quest Share of Search**: 1.6% ## Is Labcorp or Sonora Quest more popular in search? - In September 2026, Labcorp had more branded searches than Sonora Quest among lab testing companies in the United States. Labcorp had about 4.1 million branded searches, while Sonora Quest had 135,000. Labcorp made up 48.3% of all lab testing company searches we track, and Sonora Quest accounted for 1.6%. - Labcorp was ahead of Sonora Quest in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Labcorp’s share of searches among lab testing companies in the United States moved from 43.5% to 48.3%, and its estimated monthly branded searches held steady at 4.1M. - Across the 12 months ending September 2026, Sonora Quest’s share of searches among lab testing companies in the United States moved from 1.4% to 1.6%, and its estimated monthly branded searches held steady at 135K. ## Top lab testing companies in ChatGPT and Google AI Overviews In three ChatGPT questions and one Google AI Overview, Labcorp appeared in all four answers. Sonora Quest did not appear in any of the four answers. 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. ## How did search popularity change for United States lab testing companies in September 2026? Neither Labcorp nor Sonora Quest moved beyond provider rounding among lab testing companies in Sep 2026. ## Month by month | Month | Labcorp estimated searches | Labcorp Share of Search | Labcorp rank | Sonora Quest estimated searches | Sonora Quest Share of Search | Sonora Quest rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 4.1M | 43.5% | 2 | 135K | 1.4% | 4 | | Nov 2025 | 4.1M | 48.5% | 1 | 110K | 1.3% | 4 | | Dec 2025 | 4.1M | 48.4% | 1 | 110K | 1.3% | 4 | | Jan 2026 | 4.1M | 48.1% | 1 | 135K | 1.6% | 4 | | Feb 2026 | 4.1M | 48.3% | 1 | 135K | 1.6% | 4 | | Mar 2026 | 5M | 48.4% | 1 | 135K | 1.3% | 4 | | Apr 2026 | 4.1M | 43.4% | 2 | 135K | 1.4% | 4 | | May 2026 | 4.1M | 48.3% | 1 | 135K | 1.6% | 4 | | Jun 2026 | 4.1M | 48.3% | 1 | 135K | 1.6% | 4 | | Jul 2026 | 4.1M | 48.2% | 1 | 135K | 1.6% | 4 | | Aug 2026 | 4.1M | 48.3% | 1 | 135K | 1.6% | 4 | | Sep 2026 | 4.1M | 48.3% | 1 | 135K | 1.6% | 4 | ## How each brand is measured Brandwave collects information about searches that people make online using Labcorp’s and Sonora Quest’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading. - **Labcorp**: Measured on the search term “labcorp”. - **Sonora Quest**: Measured on the search term “sonora quest”. - [Labcorp profile](/demand/us/brands/labcorp) - [Sonora Quest profile](/demand/us/brands/sonora-quest) - [All lab testing companies in the United States](/demand/us/categories/us-lab-testing-companies): The set both shares are measured inside, 6 brands. ## 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 ### Is Labcorp or Sonora Quest more popular in search? In September 2026, Labcorp had more branded searches than Sonora Quest among lab testing companies in the United States. Labcorp had about 4.1 million branded searches, while Sonora Quest had 135,000. Labcorp made up 48.3% of all lab testing company searches we track, and Sonora Quest accounted for 1.6%. ## Cite this page Brandwave. "Labcorp vs Sonora Quest: Which is searched more in the United States?". https://gobrandwave.com/demand/us/compare/labcorp-vs-sonora-quest This page is also available as HTML at https://gobrandwave.com/demand/us/compare/labcorp-vs-sonora-quest. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.