Vendar ranks 6 of 32 SEO agencies serving New York for technical SEO: the ones with documented technical SEO work on file, verified through September 2026. The top three by evidence-weighted score are LinkGraph (74/100), Sure Oak (68) and Growwwise (63). No paid placements; every position below cites its sources. 26 more New York SEO agencies have no technical SEO claim on file yet and are listed unranked.
Ranked agencies have at least one claim from an outside source that names technical work: crawling and indexation, Core Web Vitals, site architecture, structured data, migrations or log-file analysis; 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 technical 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 technical 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 technical SEO work. Each profile holds the claims with their sources; the points per criterion behind every position are in the machine-readable feed.
New York, NY, USA · team 10-49
HQ in New York · From $5,000/month 1 documented
…"in-depth technical SEO audit" that identified and resolved technical issues, followed by site-structure and metadata work and a notable rise in organic… (verified client review)
Brooklyn, NY, USA · team 10-49
serves New York from Brooklyn · From $5,000/month 1 documented
…"technical SEO audits" with internal linking recommendations that raised existing keyword rankings and the number of ranking keywords; a large… (verified client review)
Brooklyn, NY, USA · team 10-49
serves New York from Brooklyn · From $2,500/month 1 documented
Airport Transfer Cars: …"SEO audit, keyword research, on-page and technical SEO optimizations" plus content and link building, and reports organic traffic up 75% and monthly bookings up 50%… (verified client review)
New York, NY, USA · team 10-49
HQ in New York · From $7,000/month no outside source
Mortgage-industry case study reports large conversion, keyword, and top-3 keyword gains from technical SEO, content audit, content planning, and content… (ipullrank.com)
New York, NY, USA · team 10-49
HQ in New York · From $3,000/month no outside source
Related Rentals: …"reviewed site architecture, crawlability, indexing barriers, templates, page structure, internal linking", and SEO requirements handed to programmers and… (seoimage.com)
New York, NY, USA · team 10-49
HQ in New York · From $3,000/month no outside source
Golden Door case study describes UX, front-end, back-end content management, and site architecture work for a luxury destination spa. (vwm.com)
On the New York SEO list, but nothing on file names technical SEO work. One sourced claim moves an agency into the ranking.
Only Vendar profile tags name technical SEO; no outside source on file yet.
No technical SEO claim on file yet.
Evidence-weighted ranking 2026.09.1: each agency is scored on the technical 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.
Technical work is measured in shipped fixes, not in findings. The question is whether the agency can get changes into your codebase and keep them from regressing at the next release.