Adnuntius
Norwegian ad infrastructure company whose marketplace buys directly from publishers and retailers and whose ad server can run your own network
Quick Overview
| Company | Adnuntius |
|---|---|
| Category | Programmatic Advertising Platforms |
| Headquarters | Oslo, Norway |
| Founded | Not stated |
| EU Presence | Yes - Norway (EEA) |
| Data Location | Not stated on the pages reviewed; data residency is described as under the customer's control |
| Open Source | No |
| GDPR Compliant | Yes |
| Self-Hosting | No |
| Main Features | Buyer marketplace, ad server, DMP with CRM matching, Prebid wrapper, retail media networks, political advertising tooling, API access |
| Pricing | Quoted per order form. Standard support is EUR 100 per started hour and professional services EUR 175 per hour when an order form is silent (rates page, checked 31 October 2026) |
| Best For | Agencies, retailers and publishers that want direct supply and an ad server they can build on |
| Replaces | The Trade Desk, Google Ad Manager, Amazon DSP |
Detailed Review
Adnuntius sells three things under one roof: a marketplace where advertisers buy straight from publisher and retail media inventory, an ad server that publishers and retailers can run themselves, and a way to combine both. The company calls the marketplace an alternative DSP and says it removes the DSP, SSP and exchange hops between advertiser and publisher.
The head office is in Oslo, with teams in Stockholm and Copenhagen and an engineering group in Australia. The general terms are governed by Norwegian law with the courts of Oslo as venue.
A shorter path from budget to publisher
The advertiser page states that Adnuntius connects to publisher and retail media inventory without another DSP, SSP or exchange in between. The vendor attaches numbers to this (more than 85 percent of spend reaching working media and a 2.5 second view-time algorithm), but these are its own claims and sit on a marketing page, so test them with your own campaign logs.
Targeting options listed include AI contextual matching, view-time targeting, first-party data matching and a bring-your-own-algorithm mode for teams with their own bidding model.
Build your own network on the same engine
Retailers and publishers can use the ad server to run a retail media network or a self-service ad platform. The platform page lists sub-50ms response times, support for display, native, video, streaming, DOOH and sponsored products, and full API coverage.
A Prebid wrapper lets Adnuntius run next to other SSPs and Google Ad Manager in one auction, so adopting it does not force a rip-and-replace.
Terms you can read before you sign
Contract documents sit on a public page: general terms, buyer and seller terms for the marketplace, ad server terms and data processing agreements. Support and engineering rates are published in euros, which is rare in an industry that mostly quotes on request.
Limitations to Consider
Adnuntius is a Nordic specialist with more than 1,000 customers, not a global trading platform, so inventory outside the Nordics and wider Europe is thinner than at the biggest DSPs. Marketplace pricing is not on the website, and the efficiency figures on the site are the vendor's own. If your main need is a classic self-serve DSP with deep audience marketplaces, BidTheatre or Adform are closer to that shape.
Who Should Use Adnuntius
Nordic and European agencies, retailers and publishers that value a direct supply path or want to operate their own advertising business on open infrastructure.
Pros and Cons
Pros
- Direct connection to publisher and retail media inventory
- Ad server, DMP and marketplace on one stack
- Prebid wrapper works alongside existing SSPs
- Contract documents and service rates published
- Norwegian law and Oslo venue in the general terms
Cons
- Marketplace fees are not published
- Smaller reach outside the Nordics
- Efficiency figures come from the vendor itself
- Buyer-side audience marketplaces are thinner than at larger DSPs
Alternatives to Adnuntius
Other European programmatic advertising platforms worth comparing before you decide:
BidTheatre
Sweden · Independent self-serve DSP run from Stockholm since 2012
Active Agent
Germany · Omnichannel DSP for display, TV, DOOH, cinema and radio
Adform
Denmark · DSP, ad server and DMP in one Copenhagen platform
RTB House
Poland · Deep learning performance DSP for retargeting and acquisition
See all European programmatic advertising platforms or compare them directly against The Trade Desk on our alternatives page.
Frequently Asked Questions
The company describes its marketplace as an alternative DSP with a direct connection to publishers and retailers. It also sells an ad server and a DMP, so it covers more of the stack than a buy-side-only tool.
The general terms and conditions refer to the laws of Norway, with the courts of Oslo as the non-exclusive venue.
Yes. The Prebid wrapper is described as running alongside existing stacks such as Google Ad Manager in a unified auction.