Disclosure of 'Who Will Be Reached' Before Ad Placement: 'Target List Type' Office Building Media 'GRAND' Lists Buildings, Major Companies, and Corporate Numbers

GRAND Inc. (Headquarters: Shinjuku-ku, Tokyo; President and Representative Director: Hitoshi Sakagami; Mitsubishi Estate Group), which operates the office building advertising media 'GRAND', is disclosing a 'Target List' that allows advertisers and agencies to check 'which companies will be reached' before placing ads on its media, which reaches approximately 40% of all listed companies in Japan (1,620 companies).

The list includes information on companies that are tenants in the buildings where the ads will be displayed, allowing advertisers and agencies to confirm 'which major companies the ads will reach' down to the company name before placing an ad. This resolves the uncertainty of mass advertising and OOH, which has traditionally been characterized by 'not knowing who will be reached.' The target list will be provided to advertisers and agencies who make inquiries.

Providing the 'Target List' to All Inquirers

GRAND provides a target list that itemizes tenant companies in the buildings where ads will be displayed to all advertisers and agencies who make inquiries or request materials. This allows them to check 'whether their ads will reach the major companies they are targeting' before considering ad placement.

Beyond 'Reaching 40% of Listed Companies'

GRAND reaches approximately 40% of all listed companies in Japan (1,620 companies, 41.3% of all listed companies). The next thing advertisers and agencies want to know is, 'So, which specific companies will be reached?' This press release introduces the target list that answers that question before ad placement.

There are many advertisements targeting decision-makers at major companies, such as TV commercials, transit advertising, and web advertising. However, most of them cannot identify 'who was actually reached' before ad placement. For B2B and high-value products, 'whether the ad will actually reach the targeted major companies' becomes a bottleneck in the decision to place an ad, and the 'black box of reach targets' has been a challenge at all stages: proposal, internal approval, and effectiveness verification.

Due to the nature of the medium, which is deployed on elevator signage in major office buildings in Tokyo, GRAND can list the buildings where ads will be displayed and their tenant companies before ad placement.

Five Items Disclosed in the Target List

Item: Content Company Name: Official name of the tenant company Building Name: Name of the office building where the ad will be displayed Address: Location Business Type: Industry (major and minor classifications) Corporate Number: National Tax Agency corporate number

This allows confirmation of major office buildings, primarily in the Otemachi and Marunouchi areas, and the financial, IT, manufacturing, real estate, and consulting companies that are tenants there, down to the company name before ad placement.

Three Use Cases

Proposal Phase: Agencies present the list to clients, showing that 'your ad will reach the major companies you are targeting.' Proposals can be made with actual company names, not abstract 'reach images.'

Approval Phase: Advertisers can specifically explain 'which companies will be reached' internally, supporting the decision to place an ad.

Effectiveness Verification Phase: It is possible to verify whether the targeted group of companies was reached by cross-referencing with the list.

Evidence of Reach Scale

The GRAND buildings that form the population for the target list include approximately 28,000 tenant companies, of which 1,620 are domestic listed companies (41.3% of all 3,918 listed companies). Because the media is installed only in office buildings where major companies are concentrated, the list contains a high density of major and listed companies.

Data Sources

Item: Content Target List Items: Company Name, Building Name, Address, Business Type (Major/Minor), Corporate Number Reach Scale: Approximately 28,000 tenant companies in GRAND buildings / 1,620 domestic listed companies (41.3% of all 3,918 listed companies)

*The target list is based on tenant company information in the buildings where the media is installed and does not individually guarantee ad reach or contract closing.

*As of June 9, 2026.

Inquiries and Requesting the Target List

The target list, which itemizes the buildings where ads will be displayed and their tenant companies, will be provided to all who make inquiries or request materials via the link below. A media sheet summarizing media specifications is also available.

Request the Target List / Inquiries: https://tokyo-grand.jp/contact

Download GRAND Media Sheet: https://box.tokyo-grand.jp/p/grand/ms2607_09

Target Materials: https://box.tokyo-grand.jp/p/grand/YYHHey

Company Overview

Company Name: GRAND Inc. (Mitsubishi Estate Group) Location: 160-0004, 6F Yotsuya Yasuda Building, 3-3-1 Yotsuya, Shinjuku-ku, Tokyo President and Representative Director: Hitoshi Sakagami Business: Operation of office building media 'GRAND' URL: https://tokyo-grand.jp/