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Our main activity is to automate processes and increase safety and productivity. We do it through systems’ integration, which means using subsystems independent from each other and make them work as a one and only system with a determined function, by means of specific hardware and software.

Solutions for your company

We provide equipment and / or skilled labor according to your needs.


Through procurement services, we evaluate and select the best suppliers, negotiate offers, manage contracts, support the acquisition of products and services, as well as in its installation and, last but not least, we evaluate the entire process. The three main factors of our analysis are: price, delivery time and quality/warranty.

System integration

Through systems integration we offer our customers a simpler and optimized workflow. Industrial systems automation allows a highly integrated digital environment, in response to market’s increasingly urgent needs. Other systems integration benefits are cost and waste reduction


We support the identification and implementation of equipment and processes to prevent explosive atmospheres formation, according to EU ATEX directive. This identification is especially important because many equipment have normal and ATEX versions. The correct choice always depends on the application and industrial environment.

Automation and Systems

We develop PLC software, HMI/SCADA but also TAS, CCTV, intercommunication systems, F&G (Fire and Gas) systems and ESD (Emergency Shutdown). The purpose is to automate processes, increasing safety and productivity. We integrate standard subsystems to work as one and transparent to the user.


We provide system automation solutions to all kind of industry: from oil and gas, to automotive, naval and aviation, through filling and packaging. In these areas, we offer the possibility of maintenance contracts, ensuring the facilities’ continuous operation along the years.


We provide system automation solutions to all kind of industry: from oil and gas, to automotive, naval and aviation, through filling and packaging. We support the installation of solutions, from calibrators to valves and loading/unloading systems, and it’s integration with the right software. Finally, we integrate it with other subsystems, if necessary, and ensure it’s maintenance.

What our customers say

“I trust the technical capabilities of the company.”

Bruno Ribeiro, BIOVEGETAL

“I recommend them with a favorable assessment from 3 contracts in the facilities of TGLS (Bulk Liquids Terminal Sines).”


“Good personal and professional opinion.”

Júlio Martins, EDP

“Congratulations for your collaborations with schools and polytechnics. We should have many more companies with this vision involved in teaching.”

Jorge do Carmo, ETLA

“I confirm the professionalism and quality in the services provided by PLEXUS and I emphasize the technical capacities of this organization.”

Marcos Lima, ECOSLOPS

“I recommend for the competence and honesty”

Mário Almeida, EURORESINAS

“I recommend them due to their response to the needs of the Parque da Boa Nova.”

Laurindo Ferreira, GALP ENERGIA

“I recommend for the prompt answer and their good solutions in the industrial market.”

Rui Dias, NESTLÉ

“I recommend them for always being ready to help, no matter what time is it.”

Nuno Salvado, GALP ENERGIA

“I recommend their competence, professionalism and proven availability.”

António Teixeira, GALP ENERGIA

“I recommend due to the high technical knowledge together with the zeal and accuracy in execution of works. Very focused people and receptive to the customer’s needs. Totally recommendable.”

Edgar Guerreiro, ENERFUEL

“I recommend them because they are professionals. They are people of trust, integrity and quite affordable.”

Bernardino Silva, GALP ENERGIA

“I recommend for the competence, professionalism and deep technical knowledge.”

Luis Espada Gonçalves, GALP ENERGIA

“I recommend for the availability and professionalism.”

Augusto Martins, GALP ENERGIA

“A company with very experienced and specialized professionals in their area of actuation. For the historical of our relationship with PLEXUS, I consider it one of our Win-Win partnerships.”

Mário Guterres, GPI-ENGENHARIA

“Competent professionals with appropriate solutions to customer needs. Always available. They are an excellent company to have as a partner.”

Vítor Liberato, GALP ENERGIA

“I recommend them for the confidence I have in the professionals who work there.”


“I recommend for the quality services and the knowledge.”

Joaquim Rodrigues, PRIO ENERGY

“I recommend them for the confidence that they capture, through their knowledge and experience.”

Paulo Mestre, REN

“I recommend their competence and availability.”

Francisco Pereira da Costa, REPSOL

“They always respond to inquiries. Proposals received are always grounded and coherent.”

Clara Louro, SICE

“I recommend them whenever I can because I recognize good work and I have full confidence in the final result.”

Patrick Almeida, ROTORK

"I recommend for always being available for clarifications, with prompt reply to the emails, as well and a kind and top level communication."

Frederico Vicente, SINAGA

"The common goals is the base of success and the relationship between GALP and PLEXUS reflects such partnership. [...] Your readiness and availability has great impact in our business."

Nuno Pereira de Oliveira, GALP ENERGIA

“It is a trustworthy company and a great partner."


Pagamento Pontual
International Society of Automation