Where
Every Quest Diagnostics opening, on the map
The wash is where US retail is opening overall. The dots are this brand — drag the timeline to watch them land.
The full report finds the trade areas that look like the ones Quest Diagnostics already wins in — demographics, co-tenancy, traffic.
One release carries most of this change — likely a data-coverage artifact, not store openings.
US locations
As of Q3 2026
Net new stores
8 quarters · Q4 2024 → Q3 2026
Verified new locations
8 quarters · Q4 2024 → Q3 2026
Individually verified openings, not a count difference.
Growth
8 quarters · Q4 2024 → Q3 2026
Quest DiagnosticsUnverified — One release carries most of this change — likely a data-coverage artifact, not store openings.
Indexed to 100 at the first quarter — the shape is the growth rate, not the store count.
Rankings
The fastest-growing chains in Health & Medical
Ranked by acceleration — opening faster now than they were a year ago.
Placing Quest Diagnostics in its category…
Rankings exclude companies whose entire rise lands in a single quarter — that pattern is a change in data coverage, not expansion.
| Trend | Compare | |||||||
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Click any company to compare it against Quest Diagnostics — the chart, the metric table and the link at the bottom of this page all follow.
Compare
Quest Diagnostics against anyone
Indexed to 100 at the first quarter, so a 300-store chain and a 3,000-store chain are the same shape. Quest Diagnostics plus up to 4 others.
Knowing how fast Quest Diagnostics is growing is half of it. The other half is where they should open next.
We'll find the trade areas that look like the ones Quest Diagnostics already wins in — demographics, co-tenancy, traffic, and the specific neighbourhoods that match.