Gallery BiG was established by Philippine art scene veteran Jonathan Ty Sy in November of 2004 and managed by UP Mass Communication professor Nate Rondina. Wholly owned and operated by Celestial Lighting and Interiors Corporation, it is the first and only Philippine art gallery that specializes in huge works of art and is located at: Level 4, Shangri-La Plaza Main Wing, Art Walk, Mandaluyong City, with telephone numbers: (632) 8775.8888 or 8703.8888. It is open from Mondays to Sundays from 10 am to 8 pm.

The main goal of Gallery BiG is to provide clients with the best and biggest examples of Philippine Fine Art from among its roster of renowned masters and upcoming talents at the lowest possible acquisition costs. The underlying preference for artworks qualified for display is either modern or contemporary.

Among those regularly carried by Gallery BiG are exceptional artworks by masters Federico Aguilar-Alcuaz, Fernando Amorsolo, Ang Kiukok, Bencab, Jose Joya, Arturo Luz, Anita Magsaysay-Ho, Vicente Manansala and Onib Olmedo. Emerging artists, on the other hand, are composed of bright, young talents such as Buen Abrigo, Marcel Antonio, Jun Balasbas, Xander Calceta, Ferdinand Doctolero, Jaime Gubaton, Buhay Mendoza, Anthony Palo, Julien Tan and Camille Ver. Sculptures by Michael Cacnio, Julie Lluch, Ramon Orlina and Kelly Sonio are also on display.

Gallery BiG counts a number of discerning private art collectors and enthusiasts in its list of distinguished clientele. Also served with utmost professionalism are corporate clients many of whom constantly seek it valued opinion with regards to art acquisition, these include Ayala Land, BDO, BPI, Filinvest Land, Hyundai Phils., Mead Johnson, PhilAm Life Insurance, PLDT, Solar Sports and United Laboratories to name a few.

Group and solo art exhibitions are hosted either at the Powerplant Mall in Rockwell, Makati City or other alternative venues such as hotels and exhibition centers.

Gallery BiG is an active member of the Grupo Reposo, an association of business establishments located in the Reposo strip from Kalayaan Ave. up to Jupiter St. in Bel-Air, Makati City that organizes the annual Reposo Arts Festival. It is also a founding member of the Bonafide Art Galleries Organization (BAGO), which is composed of 24 art galleries who aim to promote Philippine Art as one coherent body. This group spearheads the annual MANILART – the biggest visual art event in the Philippines.