About Us

We are a global agency 100% focused on SEO

Since our foundation in 2016, we have devoted ourselves to optimize our clients’ websites, ranking them among the first organic search results of search engines by applying official guidelines and safe techniques.

Each industry, business and digital project is unique; therefore, we offer specialized services based on the needs and goals of each client to improve their online visibility.

Prestamos servicios a diversos clientes en Latinoamérica, Europa y Estados Unidos, posicionando sitios web en español, inglés y portugués. En la región se destacan Mercado Libre, Ualá, Despegar, Prisma, Tienda Nube, entre otros.


Guido Mazzei


SEO consultant, with considerable international experience in project management for diverse industries and markets.

For 17 years, he has participated in different projects in South America, Europe, Asia, and Mexico, first, as process and strategy consultant and, then, as SEO consultancy expert.

With more than 10 years’ experience in SEO, he started creating and monetizing his own websites to later optimize his clients’ websites.

He holds a bachelor’s degree in Administration from the University of Buenos Aires and a master’s degree in Corporate Finance from Torcuato Di Tella University.

Conduce el podcast Gestionando el SEO, con foco en SEO técnico, y participa como speaker en eventos nacionales e internacionales de SEO y Marketing online.

Andres Kloster


SEO consultant, with more than 10 years’ experience in creation, positioning, and monetization of their own as well as third parties’ websites.

He began working in the digital space developing small websites, optimizing them for Google positioning, and monetizing them through advertising. As a result of this experience, he decided to co-found Eleven.

Es conductor del podcast La Máquina del SEO, el programa más escuchado de la temática en español, con más de 170.000 reproducciones en sus +130 episodios.

Each week, he sends the newsletter Optimizando (Optimizing) to hundreds of subscribers, with news and opinions about the industry.

He participates as speaker at international SEO and digital marketing events.

Nuestra historia

Un mensaje en LinkedIn.

Una reunión virtual.

Un encuentro presencial.

Así fue el inicio del exitoso camino de Agencia Eleven.

Esta es nuestra historia. Y recién está comenzando.

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