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What is B2B programmatic advertising?
B2B programmatic advertising is the automated buying of display, video, CTV, audio, native and digital out-of-home ads, aimed at the companies and buying committees you want to win rather than at consumers. When someone loads a page, opens a CTV app or streams a podcast, an auction runs in about a hundred milliseconds. Your DSP (demand-side platform, the buying software) decides whether to bid based on who the viewer appears to be, what the content is and your campaign rules. The SSP (supply-side platform, the publisher’s selling tool) collects the bids and awards the impression. That happens around a trillion times a day. The full primer is in the Deal IDs guide.
Programmatic was built for B2C, and out of the box it points at the wrong unit, which is the individual device. Rebuilt on an account graph, it becomes B2B’s most underused channel. It’s materially cheaper per impression than LinkedIn, where CPMs for tech and IT audiences commonly run at $30–75. It also reaches the committee members LinkedIn under-indexes on, like technical evaluators, legal, procurement and security (Programmatic Advertising Was Built for B2C).
I’ve worked in adtech since 2011: native advertising at PowerLinks, then B2B programmatic at FunnelFuel. This is my home turf, so treat this hub as the operator’s map.
Where to start
B2B Programmatic Advertising: The Complete 2026 Guide: the full stack, where the money flows and where it breaks for B2B.
What Is a Deal ID? The B2B Marketer’s Guide: the construct that now carries most B2B targeting.
Programmatic Advertising Was Built for B2C. Most of It Still Isn’t Built for B2B: the core argument.
B2B Programmatic Advertising Glossary: 115 Terms Defined: bookmark it for the jargon.
The buying routes compared
Every programmatic impression is bought through one of a handful of routes. The names confuse buyers, so here they are side by side. The table draws on the Deal IDs guide and Curation Is the Future of B2B Supply.
Open auction (open exchange). How it works: Real-time bidding against everyone, across huge pools of supply. Pros for B2B: Scale and the lowest headline CPMs. Cons for B2B: Fraud and quality risk, little transparency, and B2B relevance comes down to the data you bring. “B2B audience” can end up next to a potty-training app.
Private marketplace (PMP). How it works: An invite-only auction with selected buyers on a publisher’s or SSP’s inventory. Pros for B2B: More control and better quality than open. Cons for B2B: Still runs on much the same supply pipes. Quality varies by deal.
Preferred deal. How it works: Fixed price with first look at inventory, no volume commitment. Pros for B2B: Predictable pricing and priority access. Cons for B2B: Less flexibility on price. Volume isn’t guaranteed.
Programmatic guaranteed (PG). How it works: Fixed price and fixed volume, executed through programmatic pipes (automated IOs). Pros for B2B: Guaranteed delivery, first look and stable pricing. Cons for B2B: Rigid, with no auction dynamics, and commitments to manage.
Curated deal (curated open auction / curated PMP). How it works: A curator packages supply paths, and often data, into a single deal ID you activate in your DSP. Pros for B2B: Account-level B2B data can reach the bid stream. You choose supply paths and manage them centrally. Cons for B2B: Fees can compound, and you need to know whose data and which supply sit under the ID.
Where curation fits. Curation brings together PG’s predictability, the quality potential of PMPs and the flexibility of open exchange, and it adds data-driven selection. In the curation piece I explain why B2B buyers are moving budget from open exchange into curated PMPs. In the Deal IDs guide I cover the Audigent and Dun & Bradstreet partnership announced in 2024, which made over four hundred D&B firmographic segments activatable as curated deal IDs across CTV, display, native, audio and online video.
Mike’s take: If you can’t say what’s under every deal ID in your campaign, whose data it uses, which supply path it takes and what each layer charges, you don’t really know what you’re buying. I ask those questions on day one of every audit, and the answers usually explain the results.
Where the money goes: fees
Programmatic’s dirty secret is fee compounding: the DSP fee, plus the data fee, plus the measurement fee, plus the SSP fee, plus the publisher’s take. In How to Build Your Own AI Bidder for B2B Programmatic I sketch a typical chain as a 17% DSP fee plus extra layers for ad serving, inventory and a $1.50 CPM data fee. In practice you can end up paying $1.50 to deliver $0.60 of media and still not own the data feedback loop.
Then there’s agency-side margin. What Is Principal Media? covers the whistleblower lawsuit against WPP. It alleged close to $1 billion a year in “non-product related income” and that 97.4% of GroupM’s proprietary inventory went unused by its largest clients. Those are allegations, not findings.
DSP fee. What it pays for: The buying platform. Question to ask: What percentage of media, and is it bundled with data?
Data fee. What it pays for: Audience or account data on each impression. Question to ask: Which provider, at what CPM, and can I see the delivery by account?
Curation fee. What it pays for: Packaging supply and data into a deal. Question to ask: Who is the curator, and what is the fee per impression?
SSP / exchange take. What it pays for: The sell-side platform. Question to ask: Which supply path, and is it the shortest one?
Agency margin or principal media. What it pays for: Agency buying and inventory. Question to ask: Am I buying principal inventory, and at what mark-up?
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Channels
Programmatic is one set of plumbing serving many screens. The channel rule I keep coming back to is to respect the moment, then use the account graph to aim each channel at the accounts that matter.
CTV (connected TV)
CTV changed the instrument, not the mismatch. Identity matching means a DSP can, in principle, put an ad in front of a named contact’s TV. But hitting an executive on a 65-inch screen while their family is in the room can annoy the very account you’re trying to win. I call that the living room tax. CTV works for B2B through business-news inventory, content next to sponsorships, a tight exception list of hot accounts, and the more forgiving windows outside prime time. - Connected TV for B2B: When It Builds Brand Memory and When It Backfires - CTV for B2B Lead Generation
DOOH (digital out-of-home)
A study from OneScreen.ai and Wynter found 46% of B2B companies already use out-of-home, with adoption strongest among firms of 201–5,000 employees. Almost none buy it well. Programmatic buying now makes up over 30% of DOOH spend. The trick is to treat DOOH as a contributor to other channels, aimed with account data, not as a standalone KPI. - The DOOH Paradox: 46% of B2B Already Buys Billboards
Native
Native never went away. It went quiet, matured alongside display rather than trying to kill it, and is coming back onto B2B plans with a signal layer underneath it. I built PowerLinks around native, so I have history here. - Native Advertising for B2B in 2026
Display
Display has spent years as the unloved middle child of the media mix, and AI assistants moving into advertising may be its biggest moment in a decade. Display also tends to look broken in B2B measurement because it influences early and gets judged on late KPIs. - ChatGPT Ads and the Return of Display - Why Display Looks Broken in B2B Measurement (and Isn’t)
Audio and podcasts
Planning the mix
Display. Best B2B job: Always-on reach and frequency across the committee, plus account-level reporting. Watch out for: Optimising for clicks. Measure attention and account engagement instead.
Native. Best B2B job: Content-led engagement inside research environments. Watch out for: Low-quality placements that turn native back into display.
CTV. Best B2B job: Brand memory with senior buyers in the right context. Watch out for: The living room tax: wrong moment, wrong screen.
DOOH. Best B2B job: Local and event presence near target offices and conferences. Watch out for: Treating it as a standalone KPI.
Audio / podcasts. Best B2B job: Reaching niche professional audiences. Watch out for: Thin measurement. Plan it as brand.
Mike’s take: Every new channel, whether that’s CTV, audio, retail media or ChatGPT’s ad surface, runs through the same plumbing. If your account data and measurement are wrong on display, they’ll be wrong on CTV too, only more expensive.
Data, attention and the account graph
Context is the cookieless lever. Context was cookieless before cookieless was a category. Blend it with identity rather than choosing one (Your Firmographic Targeting Is Running On A 1937 Filing System).
Attention, not impressions. Lumen’s research has found that only a small fraction of standard banners are ever looked at. A $30 CPM in the right environment can produce a far lower cost per attentive impression than a $3 CPM in the wrong one (Segment vs Signal).
Match rates. These are covered in Programmatic Match Rates Explained.
The account graph decides whether any of this reaches the right companies. See the ABM hub.
Privacy and consent
Cookie banners have become a consent tax that guts the publishers who fund the open web (The Consent Tax). In the UK, the ICO’s PECR changes may reopen some targeting of cookie rejectors (The ICO’s PECR Changes).
Checklist: is your B2B programmatic set up for B2B?
Targeting unit: are you targeting accounts and committees, or devices and consumer segments?
Deal transparency: can you name the data, supply path and fee behind every deal ID?
Supply quality: what share of spend goes to open exchange, and do you have an exclusion list?
Optimisation goal: are you optimising to attention, account engagement and HVAs rather than clicks?
Account reporting: can you see which accounts and roles engaged, by campaign?
Fees: do you know your working media percentage?
Channel fit: does each channel have a B2B job, in the right context?
Feedback loop: does engagement data flow back into targeting and scoring?
If you’re running consumer defaults, meaning device-level targeting, click optimisation and black-box segments, fix those first. Precision downstream of a blunt filter is still blunt.
Related hubs
More reading: Why B2B Programmatic Looks Broken and How to Fix It.
FAQ
What is B2B programmatic advertising? B2B programmatic advertising is automated, auction-based buying of digital ads aimed at target accounts and buying committees, using account-level data rather than consumer audiences.
Is programmatic cheaper than LinkedIn for B2B? Per impression, yes, materially, when it’s done properly. LinkedIn CPMs for tech and IT audiences commonly run at $30–75, and programmatic also reaches committee roles LinkedIn under-indexes on.
What is a deal ID? A deal ID is a code passed in the bid request that ties an impression to pre-agreed terms such as price, inventory, audience or data. In 2026 it’s also the activation token for most curated B2B data.
What is the difference between a PMP and programmatic guaranteed? A PMP is an invite-only auction, so price and volume aren’t fixed. Programmatic guaranteed fixes both price and volume, like an automated insertion order.
What is programmatic curation? Curation means packaging supply paths, and often data, into a single deal before the buyer sees it. For B2B it’s how account-level data reaches the auction without each advertiser rebuilding it.
Does CTV work for B2B? Yes, in the right context: business-news inventory, content next to sponsorships and tight lists of hot accounts. It backfires when it interrupts people’s downtime in the living room.
Should B2B brands use DOOH? Often, yes. 46% of B2B companies already use out-of-home, according to OneScreen.ai and Wynter. Aim it with account data and treat it as a contributor to other channels, not a standalone KPI.
What fees should I expect in programmatic? Expect a DSP fee, data fees, possibly curation fees, SSP or exchange takes, and any agency margin. Ask for your working media percentage and a breakdown by layer.
What is the biggest mistake in B2B programmatic? Running it on consumer defaults: device-level targeting, click optimisation and black-box segments. B2B buying is a committee decision made over months, so measure accounts and attention instead.
What is a DSP and an SSP? A DSP (demand-side platform) is the software buyers use to bid on ad impressions. An SSP (supply-side platform) is the software publishers use to sell them.
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The B2B Stack is free. You get one practical piece a week on B2B programmatic, ABM and measurement, written from inside live campaigns. Subscribe free.
I’m Mike Harty. I’ve worked in adtech since 2011: I built PowerLinks, and I’m now Co-Founder and CPO of FunnelFuel, a B2B programmatic and analytics business. The B2B Stack is where I write up what I see on live campaigns, without the vendor spin.