2 of 13 on this list · IL

SEO companies in Illinois

2 of the 13 SEO companies on this list are based in Illinois (IL), in Chicago. The other 11 are elsewhere on the list. This is a count of listed firms, not a ranking of the state.

  1. 02 on the list · Chicago, IL

    Marcel Digital

    Since 2003 · 11–50 people

    Marcel Digital is a B2B digital marketing and web development agency at 20 N Wacker Drive in Chicago, founded in 2003 by Ben Swartz. Its SEO practice covers technical audits, site migrations, penalty recovery, local SEO, link building and answer-engine optimisation, delivered by an in-house team that sits alongside its developers and analytics staff. It is a Google Premier Partner and an Umbraco Platinum Partner since 2013, with case studies for PerkSpot, Absolute Software and Generali USA.

    Why it’s hereA 20-year Chicago SEO specialist with Google Premier Partner status and a technical practice tied to its own development team.

    technical SEO · SEO migrations and audits · answer-engine optimisation · paid search · Umbraco development

  2. 03 on the list · Chicago, IL

    Comrade Digital Marketing Agency

    Since 2008 · 51–200 people

    Comrade Digital Marketing is a Chicago agency headquartered at 332 S Michigan Avenue, founded in 2008 by Ivan Vislavskiy and Sasha Berson and now employing more than 100 people with satellite offices in Miami, Los Angeles, Austin and New York. It concentrates on home-service contractors, running SEO, local search, AI-search optimisation, PPC and web design under a 'Revenue Engine' model, and reports serving more than 130 contractors. It is an Inc. 5000 honoree.

    Why it’s hereInc. 5000 honoree and one of the larger independent Chicago search shops, with 218-plus client reviews averaging 4.8.

    SEO for contractors · local SEO · AI search optimisation · PPC · web design

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