Privacy Policy

Last updated: August 25, 2026

This English page is provided for convenience. If there is any inconsistency, the Japanese version governs.

Deltalyze ("we", "us", or "our") recognizes the importance of protecting personal information and handles it in accordance with Japan's Act on the Protection of Personal Information and other applicable rules.

01Information we collect

We collect personal information only to the extent necessary in the following situations:

• When you use our inquiry form: name, company, email address, inquiry topic, preferred timing, and message.
• When we contract with or provide services to you: contracting party, billing, and information required to perform the engagement.
• When you join training or workshops: participant, affiliation, and contact information.
• When you browse the website: access logs, cookies, browser information, and IP address.

02Purposes of use

• Responding to inquiries and consultation requests.
• Providing and operating our consulting, organizational development, training, and related services.
• Contracts, billing, administration, and service communications.
• Service improvement, relevant service information, and newsletters where permitted.
• Compliance with law and prevention of misuse.

03Disclosure to third parties

We do not disclose personal information to a third party without the individual's consent except where required or permitted by law, necessary to protect life, body, or property, or entrusted to a service provider within the scope required to fulfill a stated purpose. We require appropriate handling by service providers.

04External services

• Resend (Resend, Inc., United States): processes inquiry form data to send our administrative notification and your confirmation email. Privacy Policy
• Cloudflare (Cloudflare, Inc., United States): hosts this website and processes access and performance logs, abuse-prevention signals, and the Turnstile security check used by the inquiry form. Privacy Policy
• Google Fonts (Google LLC, United States): fonts are self-hosted through Next.js, so the visitor's browser ordinarily does not contact Google solely to display them.
• Google Analytics (Google LLC, United States): measures how the site is used so we can improve its content. It collects browsing activity through cookies and does not collect information that identifies you personally, such as your name or email address. Privacy Policy / Opt-out Add-on

05Cross-border handling

As described above, part of the processing may be entrusted to providers in the United States (Resend, Inc., Cloudflare, Inc., and Google LLC). Information on the destination country's system and each provider's safeguards is available in the provider's privacy policy and data processing terms. We review appropriate safeguards in accordance with applicable Japanese guidance.

06Retention

We retain personal information only as long as needed for its purpose. Information collected solely for an inquiry is generally deleted three years after the last interaction. Contract-related records are kept for the period required by applicable law, including relevant tax-record retention periods.

07Cookies

We may use cookies to provide the website and understand its use. You may refuse cookies through your browser settings, although some functionality may not operate correctly.

We use Google Analytics, provided by Google LLC, to understand how the site is used. Google Analytics collects browsing activity through cookies. It does not collect information that identifies you personally, such as your name or email address. Google handles the collected information under its own privacy policy; see Google Privacy Policy. To stop this collection, you can install the Google Analytics Opt-out Browser Add-on.

08Requests concerning retained personal data

Subject to Japanese law, an individual or authorized representative may request disclosure, correction, addition, deletion, suspension of use, suspension of third-party provision, or notice of purpose regarding retained personal data.

Send a request to the contact below. We may ask for information reasonably necessary to verify identity and, for a representative, proof of authority. We do not charge a handling fee, though actual delivery costs may be requested where applicable.

09Matters made available concerning retained data

• Business operator: Deltalyze
• Address and representative: disclosed without delay upon a valid request sent to the contact below.
• Purposes, procedures, and safeguards: as stated in Sections 02, 08, and 10.
• Complaint contact: the contact shown in Section 13.
• Certified personal information protection organization: none.

10Security measures

We apply organizational, personnel, physical, and technical measures designed to prevent leakage, loss, or damage. Form transmission uses HTTPS. Service credentials are stored as server-side environment variables and are not exposed to the browser. Access to devices, media, and data is limited to those who need it and removed when no longer required.

11Information transmitted externally

• Cloudflare: IP address, user agent, referrer, request URL, access time, browser and device information, and interaction data needed for security checks, for website delivery, performance monitoring, abuse prevention, and the inquiry-form security check.
• Resend: the information entered in the inquiry form, solely to process the inquiry emails.
• Google Analytics: an identifier stored in a cookie, the URL of the page viewed, referrer, access time, browser, device, language and screen information, and IP address (anonymized by Google), to measure how the site is used and improve its content.

12Changes to this policy

We may update this policy when necessary. Material changes will be announced on this website.

13Contact

Deltalyze Privacy Contact
Email: contact@deltalyze.com
Location: disclosed without delay upon a valid request.