Pt21 Solutions SAS

Pt21 Solutions SAS is an engineering company for aircraft design and modification. It is an EASA approved design organisation with approval number EASA.21J.783. The site lists offices in Paris and Saint-Louis, France, and London. The company was founded in 2009. New leadership took over in 2021.

The site says the company designs and modifies aircraft, installs galleys, reconfigures cabins, and works on aircraft systems and engineering consulting. Its work covers structural engineering, cabin engineering, systems engineering, and certification and compliance.

The site gives a record of work. It says the company has done more than 1,200 modifications and repairs, more than 100 LOPA change packages and more than 30 STC projects. It says it has worked on more than 20 aircraft platforms. It says it has clients across five continents.

The site describes a cabin reconfiguration for the Airbus A330. The work covered a new layout, monuments, galleys and systems integration. The site says the project received an STC approval in 2024. Recent news includes a galley modification and kit for Turkish Airlines in September 2026, and a full cabin reconfiguration for an Airbus A321 for a Middle East customer in May 2026.

The company says it received the Top MRO in Europe 2022 award from Aerospace and Defense Review. It says it was named among the top 10 EASA MRO and DOA organizations in Europe in 2022. The site also says KPMG featured the company in its Aviation 2030 report on aircraft interiors. The report covered an in-flight digital platform built with a digital partner, Cabanner.

The leadership team includes former senior EASA certification staff, a former spacecraft systems engineer and a holder of a PhD in composite materials. The site lists company values as safety first, excellence, integrity and accountability, innovation and continuous improvement, and collaboration and respect.

The site lists a phone number, +33 (0) 3 89 69 65 83, and a contact form for project requests. It has a LinkedIn page and sections for careers, insights, projects and case studies.