Buenos Aires Office
Our Buenos Aires office serves as the central hub for our operations across South and Central America. Led by Martin Rivero, a highly respected Naval Architect, Marine Engineer, and former Principal Surveyor with Lloyd’s Register (LRS), the office has earned strong recognition from international H&M Underwriters and P&I Clubs.
Martin’s expertise and reputation in the region have positioned our Buenos Aires office as a trusted partner for marine consultancy and casualty services, not only in Argentina but throughout South America.
Experienced Team Members

Martin J is dealing with all type of H&M casualty work, including major machinery and hull damages, as well as condition surveys for major H&M Underwriters and P&I Clubs in the Americas region
Martin have a solid experience in investigating and dealing with incidents at port terminals on behalf of major H&M Underwriters and major P&I Club. He also achieved the certification as operator for Sherlog TA ultrasonic testing and is supervising the US testing and certification scheme for Surveyors in Buenos Aires office.
PROFESSIONAL EXPERIENCE and QUALIFICATIONS:
- Apprentice Engineer at shipyard (1 year)
- Independent Surveyor for local Underwriters in Argentina (3 years).
ACADEMIC QUALIFICATIONS:
- MSc Naval Architect & Marine Engineer, National University of Buenos Aires
Martin J. Rivero
Principal Surveyor / Partner+54 9 11 5140 7212
buenosaires@ertemrivero.com

After his early retirement as a Prime Serve Diesel Manager-Director of MAN Diesel Argentina, Aldo joined our Buenos Aires office team as an Engineer Expert / Senior Associate Surveyor, undertaking and engaging in all kinds of machinery damage surveys in LATAM, providing his expertise and in-depth knowledge, particularly in major main and auxiliary engines failures and repairs thereof.
Aldo’s vast and accumulated experience and high expertise attained in his 25-year career before he joined our team, included initially 10 years as Head of Assembly & Test Bed Dept. for Diesel Engines, followed by a subsequent 15 years career as an MAN Prime Serve Service Engineer and Director for Brasil & Argentina.
Aldo has been engaged in a variety of Main Engine and machinery damage surveys on behalf of H&M Underwriters, by also sharing his expertise for providing cost-effective solutions and results in major Main Engine failures and damage repairs.
Aldo’s expertise on MAN engines design, operational features and maintenance/repairs, has proven valuable to our Principals, in causation analysis of main & auxiliary engines failures and convoluted engine damage repairs.
He also possesses comprehensive knowledge of shipyards practices and tariffs for all kinds of machinery and engine repairs in LATAM.
Languages: Fluent in English, Portuguese & Italian. Spanish – native
PROFESSIONAL QUALIFICATIONS/EXPERTISE:
- AFNE – Head of Assembly and Test Bed Department for Diesel Engines (10 years)
- Senior MAN Prime Serve Service Engineer / Director for Brazil/Argentina (15 years)
- Service & Maintenance Training – Wartsila / MAN B&W engines.
ACADEMIC QUALIFICATIONS:
- Mechanical Engineer – National University of La Plata, Argentina (1978).
- Mechanical / Electrical Engineer – National University of La Plata, Argentina (1981).
Aldo Azzolini
Senior Surveyor+54 9 2216 02 5575
buenosaires@ertemrivero.com

With his vast and accumulated experience and high expertise attained in his 24-year career before he came on board our team, Giacomo is assigned the role of a Senior Surveyor in our BA office, undertaking a variety of Casualty, Warranty and Risk Assessment / Loss Prevention surveys for H&M Underwriters & P&I Clubs.
Having initially served as an Oceangoing engineer reaching the rank of Chief Engineer for 4 years in Oil & Chemical Tankers, followed by 4 years seagoing service on board large cruise liners.
He was then employed as Superintendent Engineer and Fleet Manager in a number of shipping companies for 9 years until 2016, when he joined RINA Classification Society Buenos Aires and Montreal offices as a ‘Ships in Service’ Senior Marine Surveyor and ISM/ISPS Auditor-MLC Inspector for a total of 7 years, before joining our team.
As such, he possesses an in-depth and comprehensive knowledge of all hull, machinery, safety and regulatory aspects of oceangoing vessels and large cruise liners, as well as shipyards practices and tariffs for all kinds of H&M repairs in LATAM and worldwide.
He is fluent in English and Spanish, whereas Italian is his native tongue.
PROFESSIONAL QUALIFICATIONS/EXPERTISE:
- Oceangoing Engineer, attained Chief Engineer rank (8 years)
- Superintendent Engineer / Fleet Manager (9 years)
- Senior Marine Surveyor (Ships in Service) / ISM- ISPS Auditor – RINA Class (7years)
ACADEMIC QUALIFICATIONS:
- Service & Maintenance Training – Wartsila / MAN B&W engines
- HND in Engineering, Technical Institute “Marino Torre”, Trapani, Italy
Giacomo Catalano
Senior Surveyor+54 9 11 6599 5622
buenosaires@ertemrivero.com

EDUCATION
- 2002 - 2007: Master of Science in Mechanical Engineering.
Instituto tecnológico de Buenos Aires (ITBA)
WORK EXPERIENCE
TDR Naval - Partner:
- 2019 - Present: Engineering Consultancy. Fuel control systems for river towboats.
Independent Surveyor:
- 2018 - Present: Marine surveyor. Main responsibilities: o Hull & Machinery, P&I Claims Surveyor, condition survey.
Evdemon & Partners:
- 2014 - 2018: Marine surveyor – Engineering Consultant. Main responsibilities:
o H&M and P&I Surveyor.
o Pre-purchase / Condition surveys of tanker and bulk carrier vessels.
o Engineering consultancy for ship owners.
Ultrapetrol S.A. – UABL S.A.:
- 2013 - 2014: Project Manager - Espiritu Paraguayo tugboat major re-built. USD 6M project
- 2013 - 2014: Project Manager - Parana Iron major conversion from Ocean Going Crude
Oil Tanker to Iron Ore Storage and Transfer Station. USD 13M project
- 2012 – 2014: Fleet Human Resources Manager - Responsibilities:
o Compliance with ISM / SIRE vetting inspections / TMSA requirements for crew and office staff.
o Crew and office staff training programming.
- 2006 - 2012: Engineer - Ship Owning division - Responsibilities:
o Budgeting & running costs control of tanker and container vessels.
o Hull and Machinery insurance claims management.
o Superintendent during dry docks and mayor repairs.
o Preparation of tanker vessels for SIRE vetting inspections.
LANGUAGES
- Spanish (native), English (fluent), Portuguese (working knowledge).
COURSES
- 2016 Marine Insurance Seminar – Lloyds Maritime Academy, London.
- 2017 SDT – IMCS Hatch Cover and Ultrasonic Testing Course, Rio de Janeiro.
Oscar Cherro
Senior Surveyor+54 9 11 6860 1116
buenosaires@ertemrivero.com

WORK EXPERIENCE
2025 – to date ERTEM, RIVERO & PARTNERS
Marine Surveyor
2023 - 2024 QUIXOTE EXPEDITIONS
Technical Superintendent
2021 – 2023 PARANA LOGISTICA
echnical Superintendent
2020 – 2021 TRANS-ONA
Technical Superintendent
2019 – 2021 ESTUDIO IWG
Freelancer Engineer
2014 – 2019 SCANIA ARGENTINA
Technical and commercial advisor – I&M engines
2013 – 2014 SCANIA ARGENTINA
Fleet management – dealer BAC
2011 – 2013 SCANIA ARGENTINA
Workshop administration – dealer BAC
2009 – 2010 ESTUDIO BUCCHI Y ALFI
COURSES
Boarding practice on the RH Almirante Irizar in the 2019 summer Antartic campaign.
Seminary on ports and inland waterways (2017 and 2018).
Workshop on the efficient operation of ships from an energy point of view (IMO-NAP-2017)
EDUCATION
2020 UTN – Universidad Tecnologica Nacional
YTD – Teacher (Alternative and turbomachines)
2019 UTN – Universidad Tecnologica Nacional
Naval Engineer
2005 Instituto Politecnico Modelo
Mechanical technician (Technical High School)
ADDITIONAL SKILLS
Languages: Native Spanish speaker and fluent in English.
Matias Cruz
Surveyor+54 9 11 3418 1986
buenosaires@ertemrivero.com

Head of Administration
Lucas holds a BA in International Commerce/Trade and has worked in several administrative and accounting positions, one of them being in Australia. With a strong background in commerce and finance, he adds expertise to our accounting department, to streamline operations and implement improvements and new solutions.
Lucas is fluent in English and knowledgeable in Portuguese.
Lucas Jose Ghione
Head of Administrationlucas.ghione@ertemrivero.com

Matias Mountot
Administration
Juliana provides general administrative assistance to Rio surveyors as well as being responsible for all receivables from invoicing to fee collection supervision for all our offices in South America.
She holds a BA from UVA (Universidade Veiga de Almeida) and concurrently with her job works towards acquiring an MBA in Foreign Trade from IBMR University Center.
Juliana Melo Calixto Da Silva
Administration
Agustin Rau
Administration+54 9 11 34520873
San Isidro Labrador 1176
Martinez, Buenos Aires
Argentina
+5411 47932985
buenosaires@ertemrivero.com