Vendar ranks 12 of 46 SEO agencies serving Los Angeles for ecommerce SEO: the ones with documented ecommerce SEO work on file, verified through September 2026. The top three by evidence-weighted score are Coalition Technologies (83/100), GR0 (71) and Top Bros (68). 2 of them have documented ecommerce SEO work for clients in Los Angeles itself. No paid placements; every position below cites its sources. 34 more Los Angeles SEO agencies have no ecommerce SEO claim on file yet and are listed unranked.
Ranked agencies have at least one claim from an outside source that names ecommerce work: category and product-page optimisation, faceted navigation, Shopify or Magento platforms, or revenue from organic; official case studies and third-party reviews weigh most, profile tags least. Full rubric 2026.09 and the scoring model: How we rank.
Grouped by the clients named in documented ecommerce SEO work: client reviews and case studies, not the agencies' own positioning. The number is the place in the ranking below.
Grouped by the clients named in documented ecommerce SEO work: client reviews and case studies, not the agencies' own positioning. The number is the place in the ranking below.
“Independent” means a third-party source names ecommerce SEO work. Each profile holds the claims with their sources; the points per criterion behind every position are in the machine-readable feed.
Los Angeles, CA, USA · team 51-200 · since 2009
HQ in Los Angeles · From $1,800/month 1 documented
Verified client reviews document ecommerce SEO work by Coalition Technologies: a Shopify migration with technical SEO for Hearth Brands, product page… (verified client review)
Los Angeles, CA, USA · team 50-199
HQ in Los Angeles · From $7,000/month 1 documented
PYM Health: …"a dynamic acquisition funnel with over $30,000 in organic revenue per month". The organic revenue is stated separately from the paid work. (verified client review)
Los Angeles, CA, USA · team 2-9
HQ in Los Angeles · From $2,000/month 1 documented
Owner of "a startup company specializing in selling herbs and spices hard to find or not very common": …September 2022) says Top Bros built its WordPress and WooCommerce store and handled on-site SEO and maintenance. The owner says that once the redesign and… (verified client review)
Los Angeles, CA, USA · team 10-49 · since 2006
HQ in Los Angeles · From $4,500/month no outside source
HawkSEM's case study for ESQUELETO, a fine-jewellery and art store in Oakland that sells online and in person, says its key category pages had no content… (hawksem.com)
El Segundo, CA, USA · team 200+
serves Los Angeles from El Segundo · From $7,000/month no outside source
Travelpro: …Reported year over year: SERP-feature appearances +154%, organic revenue +23%, organic impressions +15%. The page gives no campaign dates. (wpromote.com)
Los Angeles, CA, USA · team 10-49
HQ in Los Angeles · From $5,500/month no outside source
NuWatt Lighting: …It reports organic revenue up 199%; the headline rise in monthly revenue is credited to SEO, paid media and conversion work together. (icepop.co)
Los Angeles, CA, USA · team 10-49
HQ in Los Angeles · From $9,000/month no outside source
SPINX Digital's own write-up describes "a national ecommerce brand" that needed help "managing 80,000+ product pages": a comprehensive audit, schema… (spinxdigital.com)
Los Angeles, CA, USA · team 10-49 · since 2007
HQ in Los Angeles · From $2,000/month no outside source
Bliss Drive's case study for ShearComfort, a seat-cover ecommerce store, describes a 12-month campaign that improved category page content, added product… (blissdrive.com)
Los Angeles, CA, USA · team 10-49
HQ in Los Angeles · From $2,500/month no outside source
Ecommerce SEO and website growth testimonials (ladsolutions.com)
Santa Monica, CA, USA · team 50-199
serves Los Angeles from Santa Monica · From $7,000/month no outside source
Groundworks Art Lab: …It reports organic new users up 38% and organic revenue up 82.55%; enrolment gains are credited to the combined paid and organic work. (hawkemedia.com)
Los Angeles, CA, USA · team 10-49
HQ in Los Angeles · From $3,000/month no outside source
Avidon Marketing Group's case study for Midnight Hour, an alternative clothing brand based in Los Angeles, describes an ecommerce SEO campaign for a newly… (avidonmarketinggroup.com)
Los Angeles, CA, USA · team 2-9
HQ in Los Angeles · From $2,500/month no outside source
Unsolicited Plant Talks: …in 2019 with more than 10,000 plants in stock, describes product page enrichment: species-specific care guides and chosen keywords on each product page to… (milyondigital.com)
On the Los Angeles SEO list, but nothing on file names ecommerce SEO work. One sourced claim moves an agency into the ranking.
No ecommerce SEO claim on file yet.
Only Vendar profile tags name ecommerce SEO; no outside source on file yet.
Evidence-weighted ranking 2026.09.1: each agency is scored on the ecommerce SEO query from claims with sources. Evidence for this query 30 · Fit to this query 25 · Capability depth 15 · Reliability 10 · Transparency 10 · Reputation 5 · Market credibility 5, minus penalties; confidence is shown separately. Paid visibility never changes the order of a listing. The points, the claims and the limits behind every position are on its card above; the criteria, penalties, eligibility and ordering rules are on How we rank.
Catalogue sites are won on templates and taxonomy: category pages, faceted navigation, and what happens to a URL when a product dies. Traffic that does not convert is easy to buy and easy to lose.