About us

We provide Technology Consulting and Managed IT Services and pride ourselves in transforming and supporting our client’s technology environments securely.


We bring our in-depth experience leading technology solutions so you can concentrate on running your business. 

We don’t just sell you a product; our Team goes on the journey of business improvement with you. We help you take back control of your business so you can start seeing process improvements and overall efficiencies

Arantza Castro (Co-founder & CEO)

A computer engineer by vocation, with more than 14 years of experience in the IT sector. 

Arantza manages and directs the company towards its primary goal and objectives. 

Motivation, self-learning and creativity are qualities that define her. Committed, hardworking individual, and enthusiastic about new challenges. 

Marcos Méndez (Co-founder & COO)

Marcos brings more than 10 years of experience within the industry, through a unique combination of  management and consulting roles, helping clients succeed in their business, creating efficiencies by innovating and simplifying business processes.

He leads the company of high-performing professionals to be efficient, productive, and effective.

Miguel García (Front-end Web Developer)

Miguel is an experienced Frontend Developer with an impressive track record of developing both large enterprise applications and smaller startup projects. 

He has a strong interest in blockchain technologies and is always looking to stay ahead of the curve when it comes to the latest DeFi projects. 

Daniel Desira (Full Stack Developer)

Daniel Desira is an integral part of our team, bringing his expertise as a full stack developer to the table. With a keen focus on PHP and React, he plays a crucial role in the development and enhancement of our in-house products, notably Tag My Link.

Beyond his professional pursuits, Daniel is deeply passionate about animals. In his free time, you’ll often find him volunteering or lending a helping hand to initiatives dedicated to animal welfare. 

Where are we based?

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Martza-Tech has right people for the right job.