Signpost India Limited was initially formed as 'Cartel Outdoor Advertising Private Limited' vide Certificate of Incorporation on February 19, 2008 issued by the Assistant Registrar of Companies, Maharashtra, Mumbai. The name of the Company got changed to ' Signpost India Private Limited' on November 12, 2014. Again, the Company was converted into Public Limited Company and name of the Company was changed to Signpost India Limited vide fresh Certificate of Incorporation dated April 29, 2022 as registered with the Registrar of Companies, Maharashtra, Mumbai.

the Company has vast experience in implementing large scale public-oriented projects, including street furniture, transit, public bicycle sharing and internet traffic monitoring system with over 32 Government authorities across the country.

the Company stands as a force in the digital out of home (DOOH) advertising domain, a dynamic world that consistently delivers impressive returns in the global media landscape. From India's first and largest main street DOOH billboards to the world's largest digital bus queue shelter, to hybrid mobility solutions such e-bikes, to traffic surveillance booths, to street accessible libraries, the Company is at the forefront of the DOOH revolution.

Signpost owns an impressive 33.9 million square feet of ad space along with diverse ad-tech solutions across premier Indian markets along with connecting beyond the urban. With demonstrable experience, we engineer end-to-end mega projects to build public spaces that ensure commuters' conveniences like extended transparent roofing, ergonomic and priority seating, tactile flooring, accessibility ramp, charging stations, SOS integration, mapped surrounding lavatories, auditory notification of upcoming buses and many more.

In 2018, Street Talk Connect Pvt Ltd was amalgamated into the Company effective from July 27, 2018.

In 2021, the Company launched Large Format Digital Screens for the first time in Mumbai. In 2023, it launched first Digital Bus Shelter at Worli, Mumbai.

The Scheme Arrangement for merger of Pressman Advertising Limited with the Company was implemented and sanctioned in 2023 and the said Scheme was made effective on 7th September 2023. The Scheme envisages, inter alia, that the shareholders of Pressman Advertising Limited be allotted shares of the Company in the ratio of 1 equity share of the Company of face value of Rs 2 for every 1 share of Pressman Advertising Limited of face value of Rs 2 (Swap ratio 1:1).