Terms of service

Operated by Northtide Data Holdings, LLC. Wyoming, USA. By using inventoryspread.com you agree to these terms.

What we provide

A two-sided marketplace for B2B newsletter ad inventory. We list newsletters with paid sponsorship slots, take inquiries from advertisers, and broker the deal. The directory and both inquiry forms are free to use without an account.

The broker fee

When we broker a deal between an advertiser and a newsletter, we take a fee of 10–20% of the slot price (default 15%). The fee is disclosed on the quote we send to the advertiser before booking. Newsletter operators receive the slot price minus the fee.

Payments

Settled per deal. Money flows directly between the advertiser and the newsletter, or via Wise / Polar one-time with Northtide forwarding minus the fee. We do not hold funds in escrow. Refund and dispute handling is between the advertiser and the newsletter; we will mediate in good faith on request.

Listings

Newsletter operators warrant that the audience numbers and rate-card details they submit are accurate. We reserve the right to vet, edit, or remove listings whose details we cannot verify. Listings stay until the operator requests removal or fails to honour quoted slots repeatedly.

Affiliate disclosures

Some outbound links on the site are affiliate links. We may earn a commission at no cost to you when you sign up through one. Affiliate placements always carry an inline disclosure.

Directory data sources

The directory combines self-submitted listings with newsletters whose rate-card pages are publicly published. We respect robots.txt and rate-limit gracefully on public pages; we do not scrape gated content. Operators are responsible for using the directory data in accordance with each newsletter’s own terms of service.

No warranty

Audience numbers, CPMs, and projected campaign outcomes shown in the directory are estimates. We do not warrant booking outcomes or revenue projections. The marketplace is provided as-is for research and decision support.

Governing law

State of Wyoming, USA.