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.

Based in Buenos Aires (Argentina) and Vienna (Austria), we provide services to our clients in Latin America, Europe, and the United States, positioning websites in Spanish, English, Portuguese, and German.


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 150.000 reproducciones en sus +100 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.

The team

Andres Kloster
CEO & Co-founder
Guido Mazzei
COO & Co-founder
Carolina Rodriguez
SEO Manager
Julieta Bergna
SEO Team Leader
María Abriola
Analista SEO Sr.
Joaquín Colautti
Ssr. SEO Analyst
Florencia Botana
Ssr. SEO Analyst
Fidmary De León
Ssr. SEO Analyst
Juan Pablo Castro
Analista SEO
Nazarena Lopez
Analista SEO
Tomás Pompilio
Analista SEO
Ana Roldán
Analista SEO
Aldana Sarquiz
Content Manager Sr.
Rocio Pierrefitte
Content Manager Jr.
Tiele Kawarlevski
Content Manager Jr.
Jimena Laclaustra
People Analyst Sr.
Daiana Solarz
Analista de Administración Sr.
Rosina Larrosa
Marketing Team Leader
Guido Beltramini
Content Creator Sr.
Manuel Barroso
Ssr. Marketing Analyst
Pablo Ghiglione
Graphic Designer
Cecilia Palacios
SEO Copywriter
Emilys Key
SEO Copywriter
Fernando Tobias
SEO Copywriter
Mirtha Rodriguez
SEO Copywriter
Sebastián Gutierrez
SEO Copywriter
Roberto Peréz
SEO Copywriter
Facundo Marichal
SEO Copywriter
Samanta Ruiz
SEO Copywriter
Juan Figueiras
SEO Copywriter
Kaomi Shoshiro
SEO Copywriter

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