Dentsu Soken's "AI Agent Building Support Service" Adopted by Aoyama Zaisan Networks to Accelerate Co-creation of "Consultants x AI," Achieving Both Operational Efficiency and Enhanced Proposal Capabilities

Dentsu Soken Inc. (Head Office: Minato-ku, Tokyo; President and CEO: Hirohisa Iwamoto; hereinafter "Dentsu Soken"), which realizes the evolution of companies and society through technology, announces that its "AI Agent Building Support Service" has been adopted by Aoyama Zaisan Networks Co., Ltd. (Head Office: Minato-ku, Tokyo; President and CEO: Masazumi Hasumi; hereinafter "Aoyama Zaisan Networks"), and that the development of AI agents has officially begun.

This service leverages "Microsoft Foundry" provided by Microsoft to offer end-to-end support from AI agent PoC (Proof of Concept) to mass production and operation.

Dentsu Soken Logo・Aoyama Zaisan Networks Logo

Background

Aoyama Zaisan Networks primarily operates in comprehensive asset consulting, which requires highly individualized and sophisticated judgment in areas such as inheritance, business succession, real estate, and asset management. In these fields, challenges included the heavy workload on individual consultants due to the need for "customized proposals based on each client's unique situation and background" and "prompt response to constantly changing specialized knowledge, such as tax law revisions and real estate market trends," as well as the need to support the early independence of junior consultants.

Under these circumstances, the company has been promoting the utilization of DX and AI, aiming to "build new ways of working through co-creation between consultants and AI" as part of its intellectual property strategy in its medium-term management plan. The current AI agent development is part of a concrete initiative to advance this strategy, and Dentsu Soken was selected as the accompanying partner.

Service Overview and Key Adoption Points

This service involves Dentsu Soken understanding the client company's business processes and knowledge, then designing and building AI agents. It integrates with "Microsoft 365" and "Microsoft Azure" (hereinafter "Azure") to create an environment where AI agents provide 24-hour support for tasks such as interviewing, research, document creation, and knowledge search. By combining specialized and general-purpose agents according to business characteristics, it achieves improved productivity and standardized work quality for consultants and employees. It provides end-to-end support from PoC to full-scale operation, improvement, and in-house development.

Key adoption points are as follows:

1．Secure AI utilization platform centered on "Microsoft 365" / "Azure"

By basing the platform on "Microsoft 365" and "Azure," secure AI utilization linked to existing business environments, ID management, and permission design is realized. The ability to integrally manage information storage, processing, and access control was a key adoption point, as it enables the incorporation of generative AI into operations that handle highly confidential customer information and internal knowledge while ensuring security.

2．Highly scalable agent design utilizing "Microsoft Copilot Studio" (hereinafter "Copilot Studio") and "Microsoft Foundry"

This service leverages "Copilot Studio" and "Microsoft Foundry" to enable flexible design tailored to various uses, from AI agents specialized for specific tasks to general-purpose agents usable company-wide. The configuration, which anticipates future business expansion, mass production of agents, and feature additions, was highly evaluated for its ability to progressively advance AI utilization and lead to continuous value creation.

3．Consistent support from requirements definition based on business understanding to design, implementation, and improvement

This service was adopted for its consistent support, from carefully organizing business content and on-site challenges to defining requirements, designing and implementing AI agents, and post-introduction improvements. It focuses not just on technology introduction but on ensuring continued use in actual operations, aiming for business integration and maximum effect through continuous improvements based on usage status and feedback.

Dentsu Soken will continue to support Aoyama Zaisan Networks in realizing new ways of working through co-creation between consultants and AI, by mass-producing and enhancing AI agents, strengthening integration with internal data platforms, and establishing visualization and improvement cycles for usage status.

＜Reference Materials＞

January 13, 2026

Dentsu Soken Launches AI Agent Building Support Service Utilizing "Microsoft Foundry"

About Aoyama Zaisan Networks

Aoyama Zaisan Networks provides comprehensive asset consulting services to individual asset owners and corporate owners, including asset succession and business succession consulting, asset management, and administration. The average asset size of its clients is 1 billion yen, and as one of the few listed companies in the asset consulting field, it has provided consulting services for approximately 30 years. Through a business alliance and management integration with Chester Group announced in November 2024, the company will further expand its consulting services to more clients.

Company Name: Aoyama Zaisan Networks Co., Ltd.

Representative: Masazumi Hasumi

Established: September 17, 1991

Location: Aoyama Tower Place 3F, 8-4-14 Akasaka, Minato-ku, Tokyo

Capital: 1,268.99 million yen (as of December 31, 2025)

URL: https://www.azn.co.jp/

Business Activities: Asset consulting, business succession consulting, real estate solution consulting

About Dentsu Soken　https://www.dentsusoken.com

Under the corporate vision of "HUMANOLOGY for the future - Creating the future with people and technology -," Dentsu Soken aims to sincerely face the entire "society," including companies, government agencies, local governments, and consumers, through the collaboration of three functions: "System Integration," "Consulting," and "Think Tank." It strives to create a cycle from proposing issues to solving them with technology, supporting and implementing the evolution towards a better society.

By promoting "X Innovation" that transcends the boundaries of technology, industries, companies, and regions, we will continue to pioneer the future with the power of people and technology, creating new value.

＊ Microsoft, Azure, and Microsoft 365 are registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.

＊ Microsoft 365 is the name of a service provided by Microsoft Corporation.

＊ Company names and product names mentioned in this release are trademarks or registered trademarks of their respective companies.