Luís Paixão Martins founded LPM Comunicação in 1986, and became a pioneer in the Communication Consultancy in Portugal.

He started his professional activity in 1971 as a broadcaster on Rádio Renascença, where he became a professional as a radio presenter. After a brief passage through Jornal Novo and news agency ANOP, already a journalist, Martins returned to the radio in 1979, when Rádio Comercial was launched. Afterwards he became editor-in-chief at NP Agency (News of Portugal), and worked at weekly newspapers such as O Jornal and Se7e. In 1977/8 he attended the CPJ (Centre de Perfectionnement des Journalistes et des Cadres de la Presse) and did an internship in France Press. But it would be the Public Relations discipline that he would dedicate most of his professional life to.

In 1986 Luís Paixão Martins left the profession of journalism to found LPM Comunicação, which has in its portfolio some of the most important Portuguese business groups and several global companies in a wide range of sectors. Luís Paixão Martins also collaborated in the election campaigns of José Sócrates (first left-wing absolute majority in Portugal), Cavaco Silva (first right-wing candidate elected president) and candidates for other political authorities in Portugal, Angola and Cape Verde.

In 2015 Luís Paixão Martins founded Acta Diurna Association, a private nonprofit association for NewsMuseum, a place designed to raise awareness and promote Media, Journalism and Communication, which will be located in the old Toy Museum in Sintra.