Vivianne Cheyrange

Productor supervisor en PeacockTV

It’s a pleasure working with Sebastian and his team at MRKDR. Sebastian and I have been working on several promo campaigns since the beginning of Peacock TV. He has been an incredible partner for all our Spanish bilingual brand campaigns as well as on-platform promos from ideation through production and delivery. Sebastian is a fantastic creative and has extensive experience in the video production business.

Sergio Moreno

Executive Director Creative Production

Don’t hesitate in contacting Sebastian If you need something to be done well, on time and within budget! I’ve been working with MRKDR Productions since 2015 and they have never let me down. I always look forward for our next project together.

Jaime E. Martinez

Content Publishing Manager, OTT at TelevisaUnivision

If you need something done, this is the guy to go to. Sebastian and his team of media professionals can tackle any job and always deliver excellent results. Lastly, you will never meet a nicer guy!

Claudia Bouche

Content Acquisitions Sr. Manager at Claro video, LLC

Fast turnaround of a great product, excellent customer service and competitive prices: all 3 variables have remained constant since we first started working with MRKDR Productions back in 2012. Sebastian’s professionalism and very accommodating attitude has made this ride so much easier, always adapting to the ever-changing (last-minute) needs of our company and industry. His post-house was part of a large and ambitious project our team was entrusted with and that we successfully completed thanks to his and his team’s commitment and quality work. It’s been a pleasure to work with MRKDR Productions all these years, and for many more to come!

Vanessa Arteaga

Market Strategy. Partnership Builder. Digital Transformation

Sebastian’s organization delivered outstanding results to our company at a time when we were experiencing multi-faceted challenges. He truly was committed to ensuring that his services were up to par with our expectations and he always exceeded them. There was a point in which we had to scale back our resources both internally and externally and Sebastian was beyond understanding and I can’t express enough gratitude for his flexibility and professionalism.

Pablo Szneiberg

SVP Brand & Creative Services – Creative, Production & Art

One of the most reliable and detail oriented individuals in Miami. The amount of work he carried on his shoulder without missing a deadline is incredible.

Sacha Penoucos

Director of Media Production at Bang Energy

Sebastian´s work is always on spot. No matter the budget and time constrains, he has always pulls through with quality content and no delays. He has been a vital part of the many successful campaigns I have produced along the years. It is my pleasure to always recommend him.

Elisa Ruiz

Art & Brand Sr. Manager at Sony Pictures Entertainment | Art Direction | Motion Graphics | Branding | Graphic Design

Sebastián is a very responsible and dedicated person.
He is focused on meeting the needs of the customer to give more than 100% in every project, he also always takes care of his employees and their needs.
It has been a pleasure working with him and look forward to work together on future projects.

Gary Hopkins

Founder and Chief Executive Officer at HSE Sport and Entertainment.LLC

We have worked with Sebastian and his team for 3 projects in the past 8 months and have been exceptionally impressed with the quality of work produced. We needed «Broadcast quality» 3-4 minute videos produced to record the «dedication» event for the opening of inner city soccer fields in the USA in Miami , New York and Chicago. Our partners in the program the UAE Embassy and Manchester City Football Club (www.city-soccer.org) who require very high standards of work. We asked Sebastian to «capture» the emotion of the event and produce something that truly reflected the importance of the program to the communities it serves and of course the kids it impacts. They listened to the brief and delivered on all fronts. Their videos have been used internally as well as on broadcast TV and online in the USA and around the world.

Easy to work with , very personable , no «creative ego» and exceptionally talented. A real pleasure to work with.

Manuel Alvarez

Creative Director of SVOD Streaming

Sebastian is creative, proactive and well-organized.

Marcela Valdes

Senior Director, Creative Operations at NBCUniversal Telemundo Enterprises


Sebastian is extremely dedicated and patient. He was the driving force when launching the creative department for BBC Latin America. His work is amazing. would recommend him to anyone!