Hand on heart: If you google „SEO agency Düsseldorf“, you get more hits than the Altstadt has pubs. As an SEO agency, we know the scene - and yes, that doesn't make it any easier for us when we write about the competition ourselves. But that's exactly why we can also assess who really delivers here and who only ranks well because they can do SEO themselves (spoiler: that's a good sign).
This list is based on real customer reviews, researched facts and a look under the hood. Here are the ten SEO agencies in Düsseldorf that we recommend for a closer look - including ourselves, because we're one of them.
1) CSW.AGENCY – Die SEO/GEO Agentur für die Sichtbarkeit von morgen
Yes, we are in first place - you are welcome to interpret that as self-praise. But hey: 4.9/5 stars on Agenturtipp.de and a 100% Recommendation rate sprechen für sich. Wir sind eine Digitalagentur mit Fokus auf digital strategy, SEO/GEO/SEA and Webdesign/Webentwicklung (WordPress).
What makes us special? We think SEO and AI together - Keyword GEO (Generative Engine Optimization). The 2nd place in the SEO Contest 2025 in the „AI Visibility“ category shows: We know how your content is cited not only in Google, but also in ChatGPT and co. We are the right choice for companies that want to invest in the future of search.
2) Suchhelden GmbH - The top dog with power
With around 200 employees the search heroes are one of the big players in Düsseldorf. On Trustpilot reach them 4.1 stars with 56 ratings, at Google even 5/5. Customers particularly praise the expertise in Affiliate Marketing - One reviewer writes: „Florian is an absolute expert in the field of affiliate marketing.“ Agenturtipp.de rates it with 4,8/5.
Focal points are international SEO, Store SEO, SEO relaunch, Content marketing, Link building and Conversion-Optimization. Anyone working with several stores or larger stores will find the necessary manpower here.
3) marketer UX - Webflow specialists with top ratings
The overall package is right here: 5/5 stars with 68 Google reviews and 4.7/5 with 44 Trustpilot ratings - that's a house number. marketer UX combined Webflow-expertise with SEO and Google Ads.
About 200 successful projects, the German Web Award 2022 and a verified Webflow partner status underline the quality. If you want a modern website that is technically clean and ranks at the same time, you're in good hands here.
4) Simple Smart SEO - Local heroes with a focus on results
At the start since 2015 and Local SEO specialized. On Facebook and ProvenExpert, Simple Smart SEO collects positive ratings - Customers particularly praise the Professional implementation, that lead to more inquiries and better findability on Google My Business leads.
The service portfolio includes SEO audits, SEO strategy, Training courses and Full-service SEO. Who values Measurable results instead of PowerPoint reports should come knocking here.
5) Semtrix GmbH - Professionals with a transparency bonus
The around 50 employees strong agency receives on Kununu 4.1 points and is described on Agenturtipp.de as „serious and very competent“. Customers particularly emphasize the Fast communication, Timely implementation and Trustful cooperation out.
The focal points: Comprehensive SEO support, local SEO, Store SEO, Conversion optimization, Web analysis, SEA and Link building. Anyone looking for analysis, implementation and reporting from a single source will find a well thought-out setup here - plus flexible working hours and a respectful atmosphere for employees.
6) Sumasearch - Perfect ratings, solid performance
With 5/5 stars with 45 Google reviews Sumasearch is one of the top-rated agencies in the city. The SEO and SEM agency offers Website analysis, Keyword research, On-page/off-page SEO, Content creation, Link building and Regular reports.
There's also Workshops and training courses - Ideal for teams that understand SEO and don't just want to delegate. The work focuses on Lead generation via content, with a customer mix of B2B and B2C.
7) Seeders - Think internationally, act locally
On Agenturtipp.de it says about Seeders: „We are very satisfied - Competent, flexible and service-oriented.“ The agency relies on local and international SEO, SEO relaunch, Web analysis, SEA and Content marketing.
The combination of Content, analysis and outreach is particularly suitable for companies that want to build authority and reach across multiple markets. If you think globally but value local expertise, this is the right place for you.
8) SEO211 - Excellent and customer-oriented
SEO211 (powered by L8M software GmbH) is listed on Agenturtipp.de as „excellent“ guided: 5.0 out of 5 stars with 20 reviews. Clients describe the agency as „competent partner for search engine optimization and web design„.
The portfolio includes Comprehensive SEO support, local and international SEO, Store SEO, SEO relaunch, Conversion optimization and SEO seminars. The latter are a plus for companies that want to combine knowledge transfer and implementation.
9) United Media AG
Auf der Website beschreibt sich das Unternehmen als Full-Service-Anbieter für den Internetauftritt „aus einer Hand“ und nennt als Leistungen unter anderem Web design, Responsive-Umsetzung, CMS, Online store, SEO and Online marketing and Unternehmensvideos. United Media gibt an, für über 10.000 Kunden in Deutschland, Österreich und der Schweiz zu arbeiten – das ist doch mal eine Ansage!
Außerdem listet das Unternehmen mehrere Standorte, darunter Hamburg, Berlin und Krefeld. 808 Rezensionen auf Google mit einer Durchschnittsbewertung von 4,8 Sternen unterstreichen die hohe Kundenzufriedenheit der United Media AG.
10) wolpersweb - price-performance champion
The ratings speak volumes: 5/5 with 68 Google reviews, 5.0 for 182 ProvenExpert reviews and 10/10 out of 25 Trustlocal ratings. Customers praise „Professional advice, high-quality implementation and a very good price/performance ratio„.
With over 10 years of experience combined wolpersweb WordPress web design with SEO and SEA. Special focus is placed on Local SEO, Monitoring/reporting and a free audit as an introduction. A Trustlocal reviewer writes: „Very competent and friendly. Tries to help with all concerns immediately.“
FAQs about SEO agencies in Düsseldorf
Why is a local SEO agency in Düsseldorf worthwhile?
Google calls for local Rankings Relevance, Distance and Awareness as central factors. A local SEO Agency Düsseldorf location signals in the Google Business Profile, on the website and via LocalBusiness scheme in such a way that company data consistent and in AI answers more easily quotable remain.
How long does SEO take until results are visible?
Calculates with two to four months for the first tangible effects. Visibility arises when the technical foundations for Crawling and Indexing content, answer questions directly and monitor progress via a monitoring system. Rankings, Clicks and AI mentions tracks.
What does SEO cost in Düsseldorf?
According to Agenturtipp.de, smaller projects start at least 500 euros per month. The budget remains controllable if the audit, measures, implementation and reporting are defined as clear work packages - including expenses for GAIO, structured data and Q&A content.
How do you recognize a good SEO partner?
Pay attention to a comprehensible process, clear communication and measurable results. For GAIO, the following also count Clean source and author management, internal linking and Schema markup, so that content in AI responses is recognized as a reliable source.
What does GAIO offer in addition to classic SEO?
GAIO ensures that your content is AI-generated answers quoted as source can be found. Classic SEO provides the technical and qualitative basis for findability. Together, this results in structured content, verifiable statements, clean schema data and an update process that keeps everything up to date.
