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Signature offers an exclusive authentication service for art collectors. 

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specialist authenticating art

ABOUT

Signature is a fine art research organization that brings together an international network of authentication experts. Our comprehensive range of services are designed to build a robust, evidence-backed case for authenticity to ensure the lasting value of your art investments.

EXPERTISE

Our primary area of expertise is the identification of authentic works of art through stylistic analysis and art historical research. We also partner with leading scientific laboratories in Europe and North America for advanced imaging and materials testing.

Each authentication expert brings a unique background and real-world experience in the art market to the Signature team. We are have access to prestigious museum collections and specialized fine art libraries in New York, London, Paris and Munich.

SERVICES

This portrait of a young girl is attributed to Italian Futurist Umberto Boccioni and was purchased at a rummage sale in the English town of Dorset for less than $100. It is estimated to be worth more than $288,000.

This portrait of a young girl is attributed to Italian Futurist Umberto Boccioni and was purchased at a rummage sale in the English town of Dorset for less than $100. It is estimated to be worth more than $288,000.

This work titled "Sunset at Montmajour" and attributed to Vincent van Gogh was found in a Norwegian attic. The previous owner, a prominent industrialist, had been lead to believe that it was not authentic.

This work titled "Sunset at Montmajour" and attributed to Vincent van Gogh was found in a Norwegian attic. The previous owner, a prominent industrialist, had been lead to believe that it was not authentic.

This artwork known as "The People’s Lawyer" is attributed to Pieter Brueghel the Younger and was discovered by an appraiser in a French family's TV room during a routine evaluation. It sold for $850,000 at auction.

This artwork known as "The People’s Lawyer" is attributed to Pieter Brueghel the Younger and was discovered by an appraiser in a French family's TV room during a routine evaluation. It sold for $850,000 at auction.

Purchased at a rummage sale to cover a hole in the wall of an Indiana home, ''Magnolias on Gold Velvet Cloth'' by the 19th-century American painter Martin Johnson Heade was later sold to a museum for $1.25 million.

Purchased at a rummage sale to cover a hole in the wall of an Indiana home, ''Magnolias on Gold Velvet Cloth'' by the 19th-century American painter Martin Johnson Heade was later sold to a museum for $1.25 million.

One man's trash is another man's Rufino Tamayo worth over $1 million. This work titled "Three People" was found between two garbage bags in front of an apartment building in Manhattan.

One man's trash is another man's Rufino Tamayo worth over $1 million. This work titled "Three People" was found between two garbage bags in front of an apartment building in Manhattan.

The owners of this work titled "The Unconscious Patient" realized that they were wise to hang onto it when it was later attributed to Rembrandt.

The owners of this work titled "The Unconscious Patient" realized that they were wise to hang onto it when it was later attributed to Rembrandt.