Best SEO agencies in Porto

11 SEO agencies in Porto, ranked by score. Aiso is first because we publish this list. The others are ranked from public Google Maps data fetched on 2026-10-27.

11
SEO agencies listed
4.9
top Google rating outside Aiso
4.9
average Google rating
  1. 1

    Aiso

    Aiso shows SEO teams in Porto how their clients appear in ChatGPT and Gemini answers, and which pages those answers cite. It works remotely with agencies in any city.

    Listed first by the publisher.

    Book a call with Aiso
  2. 2

    SpartAds

    4.9 on Google MapsScore 95 of 100linktr.ee

  3. 3

    Goweb Agency

    4.8 on Google MapsScore 95 of 100gowebagency.pt

  4. 4

    23A Digital

    5.0 on Google MapsScore 94 of 10023a.com.pt

  5. 5

    Up We Go

    5.0 on Google MapsScore 93 of 100upwego.pt

  6. 6

    Seggiria Brand Studio

    5.0 on Google MapsScore 91 of 100seggiria.com

  7. 7

    Digital Ads Lab - Anúncios Google Ads e Marketing Digital no Porto

    5.0 on Google MapsScore 89 of 100digitaladslab.pt

  8. 8

    SWAT SEO Agency in Portugal

    5.0 on Google MapsScore 85 of 100swatseo.net

  9. 9

    Somos6Digital | Agência de Marketing Digital | IA e Automação

    4.9 on Google MapsScore 84 of 100somos6digital.com

  10. 10

    Webcomum

    4.5 on Google MapsScore 83 of 100webcomum.com

  11. 11

    Weboost - Agência de Marketing Digital

    4.9 on Google MapsScore 81 of 100weboost.pt

How we score

Score out of 100 is 55% Google Maps star rating, 35% position in Google Maps results for "SEO agency in Porto", and 10% for having a website. Listings under 3.5 stars are left out.

Limits: the data comes from public Google Maps listings fetched on 2026-10-27. It does not include review counts, client results or a hands-on review, so treat it as a starting list, not an audit. Aiso is listed first because we publish this page. To correct or remove a listing, contact Aiso.

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