| 1996-06 |
Established Cyber Communications Inc., a joint venture with Dentsu Inc. (now Dentsu Group Inc.) and SoftBank Corp. (now SoftBank Group Corp.), and started internet advertising and related businesses. |
| 1996-06 |
Cyber Communications Inc., founded as a joint venture between Dentsu Inc. (now Dentsu Group Inc.) and SoftBank Corp. (now SoftBank Group Corp.), started internet advertising and related businesses |
| 1999-10 |
Founded Axive Dotcom Inc. (now VOYAGE GROUP Inc.) for the purpose of internet-related business. |
| 1999-10 |
axiv.com, Inc. (now VOYAGE GROUP Inc.) was founded to engage in internet-related businesses |
| 1999-11 |
Axive Dotcom launched the prize information site "MyID". |
| 1999-11 |
axiv.com launched the “MyID” gift information site |
| 2000-04 |
Cyber Communications established an Osaka branch. |
| 2000-04 |
Cyber Communications established an Osaka branch |
| 2000-04 |
Established CARTA ENTERTAINMENT Inc. as a subsidiary to operate the production business. |
| 2000-09 |
Cyber Communications was listed on the Osaka Securities Exchange Hercules Market (now Tokyo Stock Exchange Growth Market). |
| 2001-09 |
Axive Dotcom became a consolidated subsidiary of CyberAgent Inc. |
| 2003-10 |
Cyber Communications changed its market to the Tokyo Stock Exchange Mothers Market. |
| 2004-05 |
Cyber Communications started a video advertising business. |
| 2004-07 |
Axive Dotcom renewed "MyID" and launched the price comparison site "EC Navi". |
| 2005-10 |
Axive Dotcom changed its company name to "EC Navi Inc.". |
| 2006-01 |
Cyber Communications built an ad network "ADJUST". |
| 2006-03 |
Cyber Communications established a Kyushu branch. |
| 2006-04 |
Cyber Communications established a Chubu branch. |
| 2007-01 |
EC Navi established a subsidiary, PEX Inc. (now DIGITALIO Inc.), which operates the points site "PeX". |
| 2008-01 |
Cyber Communications started a cross-media business. |
| 2008-06 |
EC Navi established a subsidiary, adingo Inc. (now fluct Inc.), to support the introduction of search-linked advertising. |
| 2009-02 |
Cyber Communications has launched a voice advertising business |
| 2009-07 |
Cyber Communications was delisted following its full acquisition by Dentsu |
| 2010-10 |
Adingo launched the SSP service "fluct" to maximize advertising revenue for internet media |
| 2011-01 |
Cyber Communications started a smartphone advertising business |
| 2011-03 |
EC Navi established a subsidiary, EC Navi Ventures (now: CARTA VENTURES Inc.), to invest in internet-related venture companies |
| 2011-04 |
EC Navi established Zucks Inc. as a subsidiary operating mobile and smartphone advertising business |
| 2011-10 |
EC Navi changed its company name to "VOYAGE GROUP Inc." |
| 2012-04 |
VOYAGE GROUP established Supporters Inc., a subsidiary supporting student engineers |
| 2012-06 |
VOYAGE GROUP was spun off from CyberAgent's consolidated subsidiaries through an MBO |
| 2012-06 |
Cyber Communications launched an online ad exchange business |
| 2013-03 |
VOYAGE GROUP transformed "EC Navi" from a price comparison site to a points site |
| 2014-07 |
VOYAGE GROUP was listed on the Tokyo Stock Exchange Mothers Market (now: Tokyo Stock Exchange Growth Market) |
| 2015-09 |
VOYAGE GROUP transferred to the First Section of the Tokyo Stock Exchange (now: Tokyo Stock Exchange Prime Market) |
| 2016-09 |
Cyber Communications launched a location-based marketing business |
| 2017-02 |
Cyber Communications renamed ADJUST to "BeyondX Series" and refreshed the service |
| 2017-11 |
VOYAGE GROUP established Lighthouse Studio Inc. (now: Lighthouse Studio), a subsidiary operating the game information media "Kami Gē Kōryaku" |
| 2019-01 |
VOYAGE GROUP and Cyber Communications merged management and established CARTA HOLDINGS Inc., a pure holding company |
| 2019-05 |
Relocated headquarters to Dōgenzaka, Shibuya-ku, Tokyo |
| 2019-06 |
Established DataCurrent Inc., a subsidiary operating data consulting and data infrastructure development and operation, and fully acquired Pet media company Rakanu Inc. |
| 2019-06 |
Established DataCurrent Inc., a subsidiary operating data consulting and data infrastructure development and operation business |
| 2019-06 |
Fully acquired Rakanu Inc., which operates a pet media business |
| 2019-08 |
Established ATRAC Inc., a subsidiary supporting integrated offline and online marketing |
| 2019-08 |
Established ATRAC Inc., a subsidiary operating an integrated online-offline marketing support business |
| 2020-04 |
Established a subsidiary, Barriz Inc., specializing in DtoC advertising support business |
| 2020-04 |
Established a subsidiary, BizTeller Partners Inc., to support BPO services specializing in advertising and marketing sectors |
| 2020-12 |
Established a subsidiary, DigiCru Inc., to support retail DX initiatives |
| 2021-01 |
Established a subsidiary, PORTO Inc., operating a brand advertising platform business |
| 2021-01 |
Established a subsidiary, Telesy Inc., to operate a performance-based TV commercial business |
| 2021 |
Digital advertising quality certification |
| 2021-07 |
Established CARTA COMMUNICATIONS Inc., inheriting the business division of Cyber Communications |
| 2021-09 |
Established CARTA AGE Inc., a subsidiary operating a performance-focused marketing support business |
| 2022-01 |
Merged VOYAGE GROUP and Cyber Communications to unify group company management functions |
| 2022-04 |
Transitioned to the Prime Market due to changes in the Tokyo Stock Exchange market classification |
| 2022-09 |
Established CARTA KNOT Inc., a subsidiary supporting operation-type digital advertising |
| 2023-01 |
Fully acquired D-Marketing Academy Inc., which operates a video e-learning business for corporate web marketers |
| 2023 |
Women empowerment |
| 2023-10 |
Merged Zucks, ATRAC, PORTO, and CARTA AGE to establish CARTA MARKETING FIRM Inc. |
| 2023-10 |
To strengthen marketing business within the group, merged four companies—Zucks, ATRAC, PORTO, and CARTA AGE—and established a new company, CARTA MARKETING FIRM Inc. |
| 2023-12 |
Relocated headquarters to Toranomon, Minato-ku, Tokyo |
| 2024 |
LGBTQ+ |
| 2024 |
Diversity & Inclusion |
| 2024 |
Human capital management |
| 2024-11 |
Established CARTA VIETNAM CO., LTD., a subsidiary developing publisher growth and marketing business in Vietnam |
| 2025-01 |
Established CARTA KOREA INC., a subsidiary developing advertising agency business in Korea |
| 2025 |
Human capital management |
| 2025 |
Environmental conservation |
| 2025-07 |
Merged CARTA COMMUNICATIONS, CARTA MARKETING FIRM, and Barriz to establish CARTA ZERO Inc., aiming for multifaceted and effective marketing support in the advertising market |
| 2025-11 |
Established CARTA ENTERTAINMENT Inc., a subsidiary developing production business |
| 2025-12 |
As part of the partnership process with NTT Docomo and Dentsu Group, NTT Docomo completed a tender offer for CARTA HOLDINGS, leading to its delisting |
| 2026-01 |
Participated in the Docomo Group as a consolidated subsidiary of NTT Docomo Inc. |
| 2026-01 |
Fully acquired D2C Inc., which provides extensive marketing support based on NTT Docomo's products and data |
| 2026-01-01 |
Participated in the Docomo Group as a consolidated subsidiary of NTT Docomo Inc. |
| 2026-01-01 |
Fully acquired D2C Inc., which provides extensive marketing support centered on NTT Docomo's products and data |
