Sponsor ad for businesses

With a paid listing, your detail page gains photos, an introduction and your official link, and your ad card appears at the top of the list page.

This page is in preparation (test operation). Prices shown are provisional.

Free vs paid

Every listing is free of charge, based on our own verification of official sources. Paid plans add clearly-labeled sponsor ads and richer presentation — they never change the regular list order or the underlying verified data.

Plan (provisional)

Structural Calc National Sponsor Ad

¥4,980 / month

Your ad card at the top of the Structural Calculation Services list page — one firm at a time across the section, first come
Expanded detail page: photos, introduction and official link
Page views and ad click counts, visible anytime on your management page
Clearly labeled “Ad (paid listing)”. Never changes the regular list order or verified data

Card required. Billed monthly and automatically from day one (no free period). Cancel anytime; ends at the close of the paid period.

Rules we keep

Paid sponsor ads always carry an “Ad (paid listing)” label.
We do not guarantee search rankings, traffic or inquiries.
Editorial data stays independent from payment.
Cancel anytime from the payment-management page linked after checkout.

How it works

Register a card on Stripe's secure checkout page. Billing renews monthly and automatically.
Enter your business name and official site / SNS URL during checkout.
Submit photos and text from the form shown after checkout — your ad goes live within 5 business days. If we cannot approve the content, the contract is cancelled before billing starts (paid amounts refunded in full).

See also: Legal disclosure ・ Refund policy ・ Contact