The agency said that it aims to capitalise on the growing demand for customer engagement services in the Latin America and Iberian Peninsula markets.
The expansion will also help to support the needs of its growing customer base in these markets.
will offer its full service proposition in both offices, delivering consulting, account management, data analytics, creative services, IT and operational services primarily to the technology, travel, retail, finance and luxury sectors.
The Sao Paulo office will cover all emerging markets in Latin America focusing particularly on Brazil, Mexico and Argentina.
ICLP has secured new clients in the Iberian Peninsula, which it views as an important secondary market in Europe, including Spanish hotel chain Sol Melia and Portugese sports club Sporting Clube de Portugal.
Mignon Buckingham, ICLP managing director, said: "At a time when brands need to engage their customers more than ever before, the opening of our Sao Paulo and Madrid offices creates new opportunities to add value and drive loyalty in these regions.
"ICLP's loyalty marketing solutions allow brands to develop meaningful and profitable relationships with their customers wherever they are in the world."
ICLP currently has offices in 14 countries across five continents.