ISO27001 Certification Consulting

Build Trust. Win Contracts. Strengthen Your Security - Internationally.

ISO27001 isn’t just a certificate, it’s proof that your organization takes information security seriously. It builds confidence with clients, opens doors to new partnerships, and meets essential compliance standards worldwide.
At DIA Inc., we don’t just guide you through certification — we become your strategic partner in making it happen.

Why Choose us

Full English Support - No Language Barriers
Our bilingual experts lead the entire consulting process in fluent English, making us the perfect partner for international teams, global subsidiaries, and foreign-owned businesses in Japan.

Fast, Flexible, and Reliable
We adapt to your pace. Whether you want full support or targeted guidance, we provide what you need — no more, no less. Everything is custom-fit to your situation.

A Proven Path to Certification
From day one, we map out exactly how you’ll get certified - with zero confusion, and zero guesswork.

Your Road to Certification

We cover the entire certification journey, end-to-end:

Gap Analysis

Where you are vs. where you need to be

Policy & Document Creation

Clear, audit-ready materials

Risk Assessment

Hands-on workshops and tools

Final Audit Readiness

We’re by your side during the audit

Strategy & Planning

Timeline, roles, priorities

Employee Training

Build internal awareness & confidence

Internal Audit Support

Practice, improve, prepare

WITH YOU

At Every Step


Dedicated Consultant

One expert, start to finish

Project Tracking Tools

Full transparency and progress updates

Flexible Meetings

Online or on-site

Post-Certification Support

Annual reviews & renewals

Client Success Story

“With DIA Inc.’s fully English consulting services, we achieved ISO27001 certification in just 4 months, seamlessly communicating with both our local and head office teams.”

— Regional IT Manager, Global Manufacturing Firm

Our Track Record

Cool Quality Here

Over 50 successful ISO27001 certifications delivered

Cool Quality Here

Trusted by multinational and foreign-owned companies in Japan

Cool Quality Here

Japanese-language reports & training available on request to ensure full internal adoption

Answers to

Common Questions

How long will certification take?

Most clients complete it in 3 to 6 months, but we tailor the timeline to your team’s availability and goals.

Can a small team handle this?

Yes. Many of our clients have limited internal resources — we design a support plan that fits you.

Do you provide templates?

Absolutely. We use proprietary templates to accelerate document creation while ensuring audit-readiness.

Contact Us

Whether you’re exploring options or ready to begin, our team is happy to guide you.

Contact Us Today