Committed and communicative. We are pleased to count on him in our projects.
Services
Translation, Editing/proofreading, Website localization, Software localization, MT post-editing
Languages
English to Portuguese, Portuguese to English
Specializes in
Business/Commerce (general), Mechanics / Mech Engineering, Law (general), and 7 more.
Native in
English (Variant: US) 
, Portuguese (Variant: Brazilian) 
, Portuguese (Variant: Brazilian)
5.00 (178 reviews)
Committed and communicative. We are pleased to count on him in our projects.
When working with Mario, I appreciate his responsible approach to projects, the high quality of translations and, above all, adherence to the agreed deadlines. I can recommend working with Mario.
When working with Mario, I appreciate his responsible approach to projects, the high quality of translations and, above all, adherence to the agreed deadlines. I can recommend working with Mario.
Pinar Basar (OKX)
Oct 02, 2023
I've had the pleasure of working with Mario on multiple ptBR proofreading projects for our company. Not only is he exceptionally organized and punctual, but the quality of his work is consistently top-notch. Highly recommended!
Yelena Tesler (Trade FXL - Markets)
Mar 19, 2023
happy to work with Mario, super loyal and professional. Keep deadlines and help make our business better
Zac O'Driscoll (ApplianSys)
Mar 13, 2023
Mario was professional and worked hard to create a well-written target text. Very high quality, no concerns.
Katarina Häger (Novoterm)
Mar 06, 2023
I can warmly recommend Mario Freitas. Responds quickly, delivers on time, pleasant to work with, and above all a professional translator!
Excellent service, very professional and responsive. Would definitely work this Mario again.
Mario is effective, responsive, available and very professionnal. He has done a large project for us and it went really well.
I'd definitely recommend Mario. A pleasure to work with.
Cristina Mantovani
Dec 04, 2022
A great translator to work with. Thorough, committed to deadlines and always replied promptly. I'd definitely work with him again.
Philipe Camarao (Philipe Camarão)
Apr 14, 2022
Mario is an excellent translator. I will recommend him to friends and in the next opportunity, I will hire his services again.
Everlice Pescador
Apr 08, 2022
Fui atendida prontamente, recebi antes do prazo combinado oq foi ótimo.
Preço justo.
Arthur Vasconcelos
Feb 04, 2022
I recently outsourced a task to Mario and I was very satisfied with the outcome. I would surely work with him again.
Simona Beccaletto
Nov 29, 2021
Quick replies and delivery, proactive attitude
Mario, precise and accurate translation as well as timelly. Looking forward to collaborate with him again. Baer int.
Luciano Trends (Trends Language Solutions)
Aug 12, 2021
Great professional. Highly recommended.
Mario is very fast, communicative and polite. His work is high quality and we'd definitely work with him again. Very happy with our collaboration.
Always provides a great service. Highly recommend!
I've worked with Mario and I'm happy to recommend his services. Excellent quality, timely deliver, and great communication. Mario is a very reliable professional.
Mario was a pleasure to work with - great communication, top-quality, technical expertise and timely delivery - a true professional
Mario is a very professional and serious translator. He did a very good job.
Delivers good quality
Mario is a professional, quality translator. Punctual, quality, friendly all rolled into one. Highly recommended.
Siti (Le Reve Translation)
Oct 08, 2020
It is always a pleasure to work with Mario. We’ve worked with him for nearly one year. He provides fast, professional & high quality services as a translator.
Ana Acedo
May 13, 2020
From NAKOM Traductores e Intérpretes, we are pleased to work with Mario. He is an excellent translator and an incredible worker.
Joseph Cancelliere (Language Wire)
Sep 25, 2019
Very helpful and good communication.
Shweta Brahmakshatriya
Sep 25, 2019
Good work and timely translations. Will work with him again in future.
Pedro Aragão (nata.house)
Aug 28, 2019
Mario's expertise added great value by translating our website, allowing us to expand our business overseas.
Great and reliable translator. A pleasure to work with!
Muriel Vasconcellos (X)
Mar 09, 2019
Mário is very easy to work with. He has been extremely patient with me in translating my own writing into Portuguese, which inevitably leads me to raise many questions.
Victoria Britos (My Hispano)
Feb 18, 2019
Mario has conducted himself with professionalism and responsibility in all the projects which he has collaborated with us so far. He has been respectful of the deadlines and a great team member as well.
Pleasure working with Mario. Good translation and on-time delivery.
divulga
Jan 17, 2019
Very Professional Translator.
Kim Jacob (Arvorei Communications)
Sep 04, 2018
Mario is a very professional, reliable translator who has worked for me on numerous highly technical, mining-related projects over the past several years. He delivers high-quality output, on time, and with a collaborative, professional approach. I can highly recommend his services.
Anne-Marie Schoon (AMS)
Sep 03, 2018
Mario has provided me a port BR translation in no time. Good communication. I can for sure recommend him!
Nattalia Paterson
Aug 02, 2018
Mario is an extremely competent and professional translator. We have collaborated in several assignments in the past 2 years and he has consistently provided me with excellent work that was always delivered on time or earlier than expected.
Veerle Vanderplasschen (Absolute Translations)
Jun 12, 2018
(Originally entered Jun 07, 2018)
We are working with Mario on technical assignments and I have always found Mario to be accommodating and customer focused. He always goes the extra mile to ensure full client satisfaction. That the quality of his work is excellent too is a given. We highly recommend Mario for technical translations from English into Brazilian Portuguese.
Mario is a delight to work with. He is very responsive, punctual and always helpful. He is a trusted translator and reviser
Very professional and technically seasoned.
Great translations. Reliable and on time. A keeper.
Mario is an exceptional translator in every possible way. I highly recommend him.
Jodi Castro
May 04, 2018
Mario is a very good linguist. Highly recommended and always a pleasure to work with.
We were very happy with the translations done by Mario and hope to work with him again for future projects.
João Moris (JMM TRADUÇÕES)
Oct 14, 2017
Very good professional, punctual and reliable. Skilled translation from Portuguese to English.
We highly recommend Mario. We found him to be an extremely professional, high calibre and responsive translator. We look forward to working with Mario again.
translatorscom
Jun 26, 2017
Mario is a great translator! Always delivers the translations in a timely manner and with great attention to detail. Looking forward to working with Mr. Freitas again.
Again working with Mario and his quality and respect for deadlines is outstanding!
Maude Leblanc (Alexa Translation)
Apr 21, 2017
Mario is efficient and trust-worthy. It is always a great pleasure to work with him.
Professional attitude. Pleasant communication. A helpful and straightforward partner to work with. Highly recommended!
Mario is easy to work with and a skilled translator.
Quality of translations is good. Mario delivers on time and communicated well. Will continue working with him.
Quick, good quality and always available for questions and feedback. A pleasure!
Mario is very knowledgeable, he respect all deadlines and is very detailed and thorough when it comes to translation. We are very pleased to be working with Mario!
Mario is an excellent translator, quick to respond to inquiries and a great communicator. Thoroughly recommended!
Carlos Eduardo Marques (Accent Traduções)
Mar 02, 2017
Deadlines met with good quality. Recommended.
Heidi Wecxsteen
Sep 14, 2016
Mario delivers large translations in short time and it is a pleasure to work with him.
Mario works fast, very accurate and it's a pleasure to work with him on demanding projects!
Kimberly Jacob (Globelink Partners)
Jul 26, 2016
Mario has worked on a number of mining industry projects with our company over the past couple of years. He has consistently delivered top-quality translations and always within the established timeline. He is a valuable member of our team.
Easy to work with him, reliable.
Professional, high quality services
(Bel Air Language Services, Inc.)
May 05, 2016
Great translator.Timely delivery and professional. Looking forward to working with Mario again.
KBurd
Sep 15, 2015
Mario is very intelligent, hard working, organized, and takes passion in his work. I would absolutely encourage anyone to work with his skill range; you will be very satisfied. I hope we can work together again!
Mario is professional, efficient and a pleasure to work with. We will be working with Mario again.
Stefanie Howard (Firma8/Sovee)
Sep 15, 2015
A professional through and through who delivers high quality translations on time.
Mario is incredibly professional and a pleasure to work with. We are very happy with him and will continue using his services.
Cristiane Amaro (BTS - Business Translation Services)
Jul 15, 2015
(Originally entered Mar 02, 2015)
Competent and professional. I would surely work with him again.
Mario is fast and accurate and provides high-quality translations. We will definitely contact him again in the future.
In my dealings with Mario, I quickly got the impression that he was very committed to his chosen profession of translating. His work came across as thorough, professional and prompt. He communicated well, and often sought to go the extra mile. Would be happy to work with him again.
Very professional and prompt. Mario was a joy to work with. We look forward to working with him again in the near future.
We hired Mario for technical translation of mining-related content and were very pleased with the quality of the translation, his on-time and even early delivery, and his availability for follow-up discussion. We will definitely hire him again.
Mario is very responsive and has a great attitude when it comes to collaborating with other translators. Thanks for the great work!
We really enjoyed working with Mario. He's incredibly helpful and professional, and a true joy to work with. We're looking forward to continuing our collaboration.
Excellent translation service, very responsible and always watching the details.
Good quality, reliable and on time.
Mario Freitas was an excellent translator and provided great customer service. We will continue to work with him on any projects in his language combination.
Nicole Staedler (Moving Products, Inc.)
Jan 06, 2015
Extremely prompt and trustworthy work!
One of the most reliable translators out there.
Quality translation in due time!
Professional linguist, communicative, a real pleasure to work with.
Mario is a great, meticulous and totally reliable fellow translator. We started working together recently and I have to say that I am really impressed by his great professionalism and the quality of his work. I definitely look forward to working with him again in the near future. Thank you so much for all your amazing work!
Rose Ramiro (Cliente)
Mar 04, 2014
O Mário traduziu todos os documentos que precisei para minha graduação em Direito de forma impecável. E certamente vai traduzir todos os que ainda vou precisar. Recomendo, principalmente para documentos jurídicos.
He was very professional, punctual and did a very accurate legal tanslation job from PTBR > EN.
Joana Pereira (Partner)
Feb 27, 2014
Mário is a Dream Team all in one. He's not only perfect as professional, but a great person to work with!
Valeria Sarsur (WorleyParsons)
Feb 17, 2014
His work is 100% reliable. He is very serious and commited to deadlines and quality.
Lennox Lewis (Steelbras)
Feb 15, 2014
We have been using Mr. Freitas for the last 3years and I am very satisfied with his outstanding service. He returns the documents in a very timely manner. If we send him a document and tell him it is urgent, he works through the night to make sure we have it the following morning. I highly recommend his service.
Paulo Azeredo (Steelbras)
Feb 15, 2014
Simplesmente perfeito, o trabalho que o Mario Freitas tem prestado a nossa empresa.
Outsourcer feedback
(Those who did not leave a comment)
Sep 08, 2024
Dr. Gabi Geva (iBrainPoint)
Willing to work with again: Yes
Feb 12, 2024
Dora (Linguarum.de Buchhaltung)
Willing to work with again: Yes
Jul 21, 2023
ARGOS MULTILINGUAL
Willing to work with again: Yes
Jul 20, 2023
Amira Graham
Willing to work with again: Yes
Jul 18, 2023
Renata Borba (Basda Advogados)
Willing to work with again: Yes
Nov 11, 2022
Claudia Chauvet (Parlare)
Willing to work with again: Yes
Nov 14, 2022
Peter Downhill (Kerry Translation)
Willing to work with again: Yes
Nov 11, 2022
Infopro Digital Automotive
Willing to work with again: Yes
Aug 04, 2022
VertereSK
Willing to work with again: Yes
Dec 09, 2021
Sarah Ryan (Capella & McGrath)
Willing to work with again: Yes
Oct 28, 2020
Benardette McEvoy (Lionbridge)
Willing to work with again: Yes
May 28, 2020
Marga van den Heuvel (Haynes)
Willing to work with again: Yes
May 26, 2020
Language Scientific, Inc.
Willing to work with again: Yes
Jul 17, 2019
Ana Rita Ratton (SNC-Lavalin)
Willing to work with again: Yes
Jan 24, 2019
Rafael Sousa Brazlate
Willing to work with again: Yes
Sep 05, 2018
Pawel Gromek
Willing to work with again: Yes
May 07, 2018
PolyglotLatvija
Willing to work with again: Yes
Feb 19, 2018
Lucia V. Built (Accent Networks)
Willing to work with again: Yes
Feb 19, 2018
Katherine Przybus (Geotext Translations)
Willing to work with again: Yes
Feb 12, 2018
Mirna Turina (Geotext Translations)
Willing to work with again: Yes
Apr 28, 2017
Isabel Vencesla (IVM Translated)
Willing to work with again: Yes
Mar 02, 2017
Tanmay Vaidya (FormLabs)
Willing to work with again: Yes
Feb 23, 2014
Laura Mendes (Viamundi Idiomas)
Willing to work with again: Yes
Jul 20, 2016
Agehlert
Willing to work with again: Yes
Dec 02, 2015
Rodrigo Vallim (Betim Química)
Willing to work with again: Yes
Dec 02, 2015
Ronaldo Hneirques da Silva (Deptº de Química)
Willing to work with again: Yes
Aug 07, 2015
MULTILEX
Willing to work with again: Yes
Jul 31, 2015
TransForma_Tati
Willing to work with again: Yes
Apr 28, 2015
Reuel Rodrigues Pereira (Anglo American)
Willing to work with again: Yes
Mar 09, 2015
Paola Jiménez
Willing to work with again: Yes
Mar 09, 2015
Paola Jiménez (Language Solutions)
Willing to work with again: Yes
Jan 06, 2015
Don Soubolsky (Moving Products, Inc.)
Willing to work with again: Yes
Nov 26, 2014
Ofer Tirosh
Willing to work with again: Yes
Nov 26, 2014
Marina Alva
Willing to work with again: Yes
Sep 12, 2014
Lis Oliveira
Willing to work with again: Yes
Sep 11, 2014
Regas Santas
Willing to work with again: Yes
Sep 08, 2014
Kevin McQuire
Willing to work with again: Yes
May 16, 2014
Wilma Gomes (Viamundi Idiomas)
Willing to work with again: Yes
May 16, 2014
Karla Peregrino (Anglo American)
Willing to work with again: Yes
Apr 02, 2014
Ricardo Murta Santos (WorleyParsons)
Willing to work with again: Yes
Mar 14, 2014
Melissa Johnson (Minerconsult Engenharia)
Willing to work with again: Yes
Mar 09, 2014
Pedro Aragão (Regular Client)
Willing to work with again: Yes
Mar 06, 2014
Ricardo Bolivar de Freitas (Regular Client)
Willing to work with again: Yes
Mar 06, 2014
Robin Dussart (SNC-Lavalin)
Willing to work with again: Yes
Feb 27, 2014
Frederico da Matta Filipe (WorleyParsons)
Willing to work with again: Yes
Feb 27, 2014
Taciana Isoni (Minerconsult Engenharia)
Willing to work with again: Yes
Feb 27, 2014
Hélcio Pereira (Aywa Executive Search & Consulting)
Willing to work with again: Yes
Feb 27, 2014
David Lova (Anglo American)
Willing to work with again: Yes
Feb 27, 2014
Rodrigo Adel (Independent Consultant)
Willing to work with again: Yes
Feb 27, 2014
Reinaldo Azevedo (SNC-Lavalin)
Willing to work with again: Yes
Feb 27, 2014
Maurício Gulherme Silva (Client)
Willing to work with again: Yes
Feb 18, 2014
Monica Nunes (Avro Translations)
Willing to work with again: Yes
Feb 17, 2014
Beatriz Almeida (WorleyParsons)
Willing to work with again: Yes
Feb 16, 2014
Jovan Tatić
Willing to work with again: Yes
Feb 15, 2014
RicardodaMata
Willing to work with again: Yes
Feb 15, 2014
Francisca Costa Pereira (Regular Client)
Willing to work with again: Yes
Feb 15, 2014
Flavio Santiago (Celotlc)
Willing to work with again: Yes
Feb 15, 2014
Karla Peregrino (Freelance Translator)
Willing to work with again: Yes
Feb 15, 2014
naral
Willing to work with again: Yes
Danielle Sanchez
Feb 14, 2021
Competent, skilled, always available to discuss about the project, and very kind to share his knowledge without hesitation.
Tereza Rae
Jul 19, 2019
With his vast experience, Mario has provided invaluable contributions as a revisor to a large translation project that I did for Niagara College, Canada. I have learned a great deal from him and I definitely hope we can team up again.
VERLOW WOGLO JR
Aug 17, 2017
One of the FINEST linguists and terminologists I know. It is an honor to be the 100th person to provide you with a positive entry here on ProZ.com.
Gilmar Fernandes
Jul 20, 2016
Great translator. Very attentive to details and committed to providing excellence.
Georgia Morg (X)
Jul 20, 2016
Very professional to work with. Prompt replies and feedback. Great support. Incredibly knowledgeable. It was a pleasure to work with Mario
Joao Marcelo Trovao
Jan 29, 2015
This guy is fast and reliable!
Excellent and reliable translator! Easy communication.
The translations from English into Brazilian Portuguese that Mr. Freitas did for us were very well done. He showed a good understanding of the source language was able to properly convey the meaning into the target language. I expect to have him do many more translations and would recommend him to others.
Travis Salewich (SNC-Lavalin)
Mar 31, 2014
Mario is fast and accurate. Intelligent and driven.
Fábio Lacerda (Polícia Federal)
Mar 29, 2014
Mr. Freitas, besides being and excellent translator is a very responsible professional. He is a highly recommended person in my opinion.
Hugh Clare-Talbot (SNC-Lavalin)
Mar 06, 2014
Mario is a great translater and administrator. Also has good HR skills.
Alain Trudeau (WorleyParsons)
Mar 02, 2014
Mario provided quality and on time services as translator and office administrator at Worley Parsons, Belo Horizonte. Mario was always available and responsive when I needed help.
Ines Braga (Viamundi Idiomas)
Feb 17, 2014
Mario is outstanding when working with legal contracts!
Colleague feedback
(Those who did not leave a comment)
Apr 21, 2017
Alice Martin
Willing to work with again: Yes
Mar 17, 2014
Ana rita Ratton (WorleyParsons)
Willing to work with again: Yes
Feb 27, 2014
Laila Duarte (WorleyParsons)
Willing to work with again: Yes
Feb 22, 2014
Jovan Tatic (Redoje Tatic Fund)
Willing to work with again: Yes