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Since 1974

Our business is built upon strong values that have been at the heart of how we do business since the very early days. Abacus can trace its origins to the early 1970s, as part of a leading UK accountancy firm which ultimately developed into one of the top four global financial advisory firms, with Abacus as a member in its own right. Now, operating as a fully independent firm, we remain committed to the high standards instilled by our heritage.


Our physical presence in both Gibraltar and Portugal and our international professional network, allows us to offer multi-jurisdictional solutions, including the full complement of corporate domiciles and international trust structures.


We are a leading international professional services firm who have been managing the wealth of our corporate and private clients since 1974. Our qualified team of experts in wealth management, corporate structuring, accounting and legal services will strive to offer you a personalised and high quality service.



Our team of qualified professionals is committed to offering a first class service. We endeavour to build long term relationships with both clients and intermediaries, creating value and innovative solutions tailored to individual needs.

The Abacus brand was first introduced in the mid-1980s when the firm became part of Coopers & Lybrand, then one of the UK’s leading international accountancy practices. C&L subsequently merged with Price Waterhouse in 1998 to become the global accounting giant, PwC, which included Abacus as a distinct member firm in its own right. From the late ’90s onwards, Abacus witnessed unprecedented growth in every sense: its client reach extended well beyond the confines of the Iberian peninsula and the United Kingdom; its business and product offering became increasingly sophisticated as clients demanded more from their fiduciary services provider than mere nomineeships; its staff complement multiplied by a factor of five within a decade.

We are proud of our historic association with the PwC network of which Abacus remained a member until July 2012, when Abacus chose to become an independent firm.

The partners of both firms in Gibraltar decided then that it would be mutually beneficial to allow Abacus to provide the full range of trust and company management services to all its clients which PwC’s auditor independence rules had hitherto constricted. Abacus and PwC remain closely associated and continue to provide services to each other, referring work to the other when opportunities allow.

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Abacus Gibraltar