Walking the store…
Costco in San Francisco is a membership-based warehouse store known for offering a wide range of products at competitive prices. Positioned as a one-stop-shop, it provides everything from groceries to electronics and household goods, catering to both individual and business members. The store features a variety of departments, including a bakery, fresh deli, and pharmacy, and offers additional services like a tire service center and optical department.
carries 1,673 products from 821 brands across 209 aisles.
Retailer Power (0-100) blends four signals of Costco’s market presence, measured against the widest Bay Area grocer we track.
carries 821 brands. how broad the brand lineup is, against the widest SF grocer.
1,673 products on the shelf. how deep the total selection runs.
spans 209 categories. how much of a full shop it covers.
What this store’s assortment leans toward, indexed against other Bay Area grocers.
Share of the assortment carrying organic, non-GMO, or clean-label claims.
How the range scores on nutrient quality — sugar, sodium, fiber, protein, saturated fat, and seed oils.
The average brand power of what sits on the shelf — established, high-demand names vs the long tail.
the strongest prospective adds Costco doesn’t carry yet · scored on how much the buyer values the category, how differentiated the product would be on the shelf, whether its price band fits, and whether it matches the store’s values.

fills a gap (no dairy-free yogurt here yet), proven at similar stores (Target, Andronico's Community Markets), standout brand (cult favorite)

fills a gap (no other canned seafood here yet), proven at similar stores (Target, LeBeau Nob Hill), standout brand (cult favorite)
Costco’s current locations.
private-label lines carried under this store.
grocers most like Costco overall, scored by blending shared brands (distinctive ones count more) with store count, so grocers of similar scale and type rank higher. Score is a 0–100 index vs the closest pair in Bay Area.
46% of its brands are rare across the Bay Area grocers we track. how distinctive the lineup is — the share of its brands few other tracked grocers carry.
Costco’s per-unit prices run 55% below the Bay Area category norm. Where it sits on price vs the fleet, controlling for pack size · context, not scored into Retailer Power.
How much the assortment leans toward emerging, independent, and challenger brands versus large legacy names.

differentiated (only 2 probiotic soda here), premium price fits, proven at similar stores (Andronico's Community Markets, LeBeau Nob Hill), standout brand (cult favorite)

fills a gap (no vegetarian sausages here yet), proven at similar stores (LeBeau Nob Hill, Woodlands), standout brand (insurgent dtc)

fills a gap (no dairy-free yogurt here yet), proven at similar stores (Target, Andronico's Community Markets), standout brand (trend setter)

destination category (deep snacks buyer, 42 SKUs), differentiated (only 3 squeeze snack pouches here), mid price fits, proven at similar stores (Target, Andronico's Community Markets)

differentiated (only 1 cereal bars here), proven at similar stores (Andronico's Community Markets, LeBeau Nob Hill), standout brand (insurgent dtc)

fills a gap (no vegetarian sausages here yet), proven at similar stores (Andronico's Community Markets, LeBeau Nob Hill), standout brand (better for you)

differentiated (only 1 grain-free tortillas here), proven at similar stores (Andronico's Community Markets, Woodlands), standout brand (trend setter)

differentiated (only 2 probiotic soda here), premium price fits, proven at similar stores (Target, Andronico's Community Markets), standout brand (insurgent dtc)
fit 0–100 · vs other prospective products fleet-wide · a structural-fit read, not proven velocity