Founded by someone who knows production from the inside
Gataria was born in 2013, when Mariana Sierra brought together in one production company everything she had learned working at a production company, a media outlet and an advertising agency. Streaming and other media came later, adding even more to the way she produces.
More than 300 projects, from brief to final cut
She has worked at agencies, production companies, media outlets and streaming, always on the production side. At Gataria, she is the one who looks after your job, with a network of crews built over 15 years on set.
MBA in Marketing, Branding and Growth (PUC-RS), with gatarIA as her final project. Postgraduate degree in Human Rights and Social Responsibility: since day one, Gataria has built diverse crews, close to the subjects they portray.
51 awards and shortlists.
- 2026POPOL StudioAnimation and design project manager for cultural projects, including series and launches for Netflix and Prime Video
- 2023DM9Restructured the production workflow of a 15-person team
- 2022Netflix BrasilPhoto and video studio for promoting the local slate and events
- 2020BFerrazLarge-scale branded content: Santander Christmas, Expert XP
- 2018Catraca LivreSet up the commercial video department, as a consultant
- 2018TracyLockeSet up the in-house production department
- 2014SunsetCreative producer: Spotify launch in Brazil, Seara, Nextel
- 2013Gataria FilmesFounds the production company
- 2012VICE BrasilPart of the team that founded the video and branded content department in Brazil
- 2010Geral FilmesAccount management and production coordination for major agencies
From people who have worked with her
“Mari faced a big challenge when she joined Netflix’s photo and video team: getting to grips with the company culture quickly while already delivering important work and leading strategy. She played that double role with grace, bringing lightness, creativity and excellent execution.”
Nana Caetano · Senior Manager, Public Relations Brazil, Netflix
“A superb creator and executive producer. She can bring together and manage the best professionals to deliver an excellent film for your brand, on any platform.”
Chico Pedreira · Executive Producer, Prodigo Films
“She has the knowledge, experience and resources to deliver a production of any scale. She is also sensitive, with a real ability to understand characters and narratives to improve the structure of the production.”
David Feinberg · Film & TV Editor, VICE & Refinery29
“An excellent professional! Dedicated, fast and a high achiever. At Netflix, she made a positive impact on the business by creating strategies and content to promote Brazilian productions.”
Jorge Soares · Sr Manager Photo & AV Brazil, Netflix
“Extremely competent and dedicated, always focused on delivering the best result and exceeding expectations. Organized and with a great technical eye, she makes a difference and becomes a reference on every project.”
Rafael Guaranha · Marketing & Creative Strategy Director, 99
“If you want a producer with knowledge, experience and sensitivity, I recommend Mariana. On top of all that, she is a great partner: determined and competent.”
André Kovadloff · Creative Director, BFerraz
“Tireless, she spares no effort to deliver the best, beyond expectations. A professional like few others.”
José Luiz de Carvalho Oliveira · Owner, Máquina de Ideias
“An extremely competent, organized producer, much loved by the crews. She is very good with people, and working with her is always easy-going.”
Paula Zakia · Partner and Client Services Director, Audioink
“An excellent professional: focused, committed and hands-on. She truly lives by the saying ‘mission given is mission accomplished’.”
Guto Cappio · President, Sunset DDB
“Her leadership in running projects makes her a professional contact I want to keep for life. Highly recommended.”
Diego Kobayashi · Project manager and audiovisual producer
“From the very first contact, I was impressed by her proactivity and punctuality, essential qualities for a producer. Highly recommended!”
Duca Mendes · Head of Production and Post-production
Translated from Portuguese.
