Dentsu Soken - Company History

In December 1975 Dentsu and General Electric Information Services set up Information Services International-Dentsu (ISID) in Tokyo on a roughly even split. The business was to bring GE’s mainframe time-sharing service to Japan and sell it into the data-processing needs of Dentsu’s advertising clients — a company built entirely on borrowed technology and inherited customers, with the name spelling out the arrangement.

From the late 1980s it built the overseas network that suited that role: a London branch in 1986, a US subsidiary in 1987, Hong Kong in 1989, Asia in 1990, Europe in 1991, Singapore in 1992. The customers were Dentsu group companies and Dentsu’s advertisers, and the value offered was supporting the information systems of Japanese firms going abroad. In 1989 it began taking Dentsu’s own internal systems development and operations on a continuing basis — deepening the dependence on the parent, and securing an income floor that made everything else possible.

ISID listed on the First Section of the Tokyo Stock Exchange in November 2000, twenty-five years after founding and at the height of the IT boom. Both parents stayed on the register, but the binding constraint since 1975 — that anything significant required two shareholders to agree — was gone, and the company now had shares it could use as acquisition currency and as staff compensation, along with quarterly scrutiny it had never faced.

It used them immediately. Kisco Solution in 2001, a consulting joint venture with America’s International TechneGroup, SIID in 2002, a Shanghai company the same year — pursued through an explicit three-stage method: take a minority stake in a company with good technology and weak management, move to equity-method ownership above 20%, and go past 50% if it works. Against consolidated revenue of ¥72.4bn in the year to March 2002, management set a target of ¥120bn and ¥12bn of recurring profit by March 2004, growth of roughly 30% a year that assumed acquisitions would supply it. Trade press of the day grouped ISID with Fuji Soft ABC and TIS as the three mid-tier independents driving the M&A wave.

The urgency was defensive. Prime contracts on large systems projects were held by the manufacturer-affiliated giants — NTT Data and its peers — and ISID could field perhaps a tenth of their engineers, which pointed toward a future as a permanent subcontractor. Its answer was specialisation: expertise in advertising, marketing and content industries, plus the global footprint. In 2004 it moved its head office to Minato, where the IT industry clusters.

After the 2008 crisis GE retreated to financial services, its information-services business was sold off, and its stake in ISID fell away until Dentsu was the sole parent. For a company created as a sales window for GE’s network, this was not the tidying-up of an unprofitable line: without becoming a company that made what it sold, no reason to exist remained. The technical base was rebuilt on open Linux and Windows systems, and the business was re-founded on three pillars — SAP and Oracle ERP implementation, PLM for manufacturers, and risk-management systems for financial institutions.

The rebuilt company then had to be tidied. Subsidiaries were merged or absorbed through 2009–2014, a consulting subsidiary was created in 2013, and engineering and Indonesian units were added. Revenue in the year to March 2013 was ¥72.8bn with ¥4.3bn of recurring profit — flat against a decade earlier — and ¥78.2bn by March 2015. In April 2015 the fiscal year end was moved from March to December, aligning with the American and European integrators and consultancies it wanted to be compared against, even though Dentsu itself stayed on March.

From there the margin arrived. Operating margin went from 3.7% in the transitional nine-month period to 8.1% in 2016, and revenue climbed from ¥79.8bn in 2016 to ¥83.4bn, ¥91.0bn and ¥100.7bn in 2019, with operating profit rising 55% over three years to ¥10.1bn. The company ran five segments — financial, manufacturing and business solutions, communication IT and cross-innovation — and kept adding joint ventures at the edges: with Fraunhofer in Germany in 2018, with Mitsubishi Estate on the FINOLAB fintech hub and with Seven Bank in 2019.

The pandemic turned corporate DX budgets into the company’s best market. Revenue went from ¥108.7bn in 2020 to ¥112.1bn and ¥129.1bn in 2022, with operating profit rising 84% over three years to ¥18.6bn and net profit doubling — the demand concentrated in ERP, cloud migration, data platforms and new digital services. It moved to the Prime market in April 2022 and to a board with an audit and supervisory committee in 2023, and held its growth as the cycle cooled: ¥142.6bn of revenue in 2023 and ¥152.6bn in 2024, each with ¥21.0bn of operating profit.

In January 2024 the company renamed itself Dentsu Soken, taking over the think tank of that name from Dentsu itself and absorbing its own consulting subsidiary; in April it bought Mitsue-Links, a large web production house, to bring UI and UX design in-house. The stated logic was that systems integration alone can no longer answer how complicated its clients’ problems have become, and that research, consulting, implementation and design should sit in one legal entity. The first year under the new name produced records: ¥164.8bn of revenue, ¥22.8bn of operating profit and ¥16.3bn of net profit in 2025.

What remains unsettled is ownership. The company that listed in 2000 to escape the veto of two parents is now, by press reports in 2026, the subject of a plan under which Dentsu keeps 61.8% and places the remainder with Fujitsu or a trading house. Fifty years after being founded to resell an American network to Japanese advertisers, its name says research institute and its share register says whose it is.