Sales should never walk into an account cold. It happens across most of a target account list anyway, because the marketing meant to warm those accounts ran for a quarter, got judged on inbound leads, and was switched off.
Air cover is the fix, and the phrase gets used loosely enough in GTM meetings to need pinning down. It comes from the military: persistent coverage over an area. In B2B the area is your whole market. Only a small share of it is buying at any moment, and a buying committee that has never heard of you when it starts shopping is probably not considering you.
Most teams run it as a campaign: pick a quarter, pick a list, fund a burst, move on. That guarantees gaps. What works is an always-on workstream, reviewed on a sprint cadence, with at least one instrument you own so the cover never drops to zero.
Below: what air cover is, what level to run it at, which channels reach a committee, how to build a list you can reach, and what it costs.
TL;DR
- Air cover keeps your market aware of you before anyone is shopping. Sales works 3% to 5% of the market; cover reaches the rest.
- It runs always on, in sprints, with campaigns nested inside.
- Run it at the segment level. Account-based marketing is for the accounts the cover warms up.
- Paid display reaches buying committee members you cannot name. Owned email keeps running when budgets move. The design needs both.
- Measure engagement at the account level, then keep, kill or widen every week or two.
- Use minimum viable segmentation. If two segments get the same message, they are one segment.
- Fund it as a floor, and make it the last line you cut.
Two ways to run it
Campaign or cover.
The same channels, the same budget, two different operating models. One leaves gaps in the calendar, the other never goes to zero.
Run as a campaign
Bursts, funded quarterly
Pick a quarter, pick a list, fund a burst, move on. Judged on inbound leads, so it looks like failure and gets switched off.
What you get
Run as air cover
Always on, run in sprints
A disciplined cadence, reviewed every week or two, with campaigns nested inside it and at least one channel you own.
What you get
Sales works 3% to 5% of the market at any moment. Air cover is what reaches the other 95%.
What is air cover in B2B marketing?
Air cover is persistent coverage across every buying committee on your target account list, so the awareness already exists by the time an account is in cycle.
You would never send a team into territory with zero coverage, and a cold sales call is exactly that. So air cover starts as an agreement between sales and marketing. Sales hands over the full target account list and says: run ads and emails, get content in front of these people, so when I reach out they already know who we are. Sales only ever works 3% to 5% of the market, and even inside that slice reps have no time to push content at scale. Air cover gives them that scale, and their time back. They start at consideration, and they would rather work five or twenty leads a month that know who you are than fifty or five hundred that have never heard from you.
What it covers
- Every account on the list, whether it buys this quarter or in two years
- Buying committee members sales has never spoken to
- Awareness and consideration. Conversion is a separate job
Where it breaks
Run as a burst, cover goes quiet between bursts, and quiet is where accounts slip away mid-cycle. It also gets judged on inbound leads, yet in long sales cycles people rarely raise their hand anymore. What air cover produces is signal, awareness and consideration. Judge it on leads and it looks like failure, so it gets turned off and the next sales push starts cold. Most plans fund it quarterly, which writes the gaps into the calendar.
How to run it
- Run it like software development: sprints, a disciplined cadence, reviewed and adjusted, never switched off
- Nest campaigns inside it. A quarter’s six assets on one topic go into the always-on stream
- Treat it as a must where contracts run above roughly $50,000 a year and cycles are long. A buyer already in cycle who has never heard of you is a deal you were too late for
Are you doing ABM or segment marketing?
Air cover is segment marketing, and calling it that stops teams from trying to run account-based marketing across two thousand accounts at once.
Bev Burgess’s 2025 book, Account-Based Marketing: The Definitive Handbook for B2B Marketers, names five types of ABM: Strategic, Scenario, Segment, Programmatic and Pursuit. Segment-level work is a formal category with its own discipline, and it is where air cover lives, because the whole point of air cover is broad-scale reach.
What it covers
If you sell into healthcare and it has five sub-verticals, in a perfect world you still run air cover at the healthcare level. Bring it up as high as the message will hold. Cover can also mirror the org chart: if one marketer owns financial services and another owns logistics and wholesale, run separate cover for each.
Where it breaks
Segment too finely and each extra cut doubles or triples the effort for diminishing returns, until the team stops shipping and the coverage breaks again. That is how a small team ends up with nine dead workstreams. Segment too little and you read as noise: unsubscribes climb and nobody engages.
How to run it
Minimum viable segmentation
Three questions, in order. Stop at the first workable answer.
Most teams need two segments or three. Almost nobody needs nine.
If the security evaluator and the economic buyer need different things, cut here and stop.
Cut only when proof points, regulations or vocabulary genuinely differ. A different logo on the case study doesn’t qualify.
Cut by tier once you have enough volume that tiering changes the spend as well as the label.
The rule: if two segments would receive the same message, they are one segment. Segment past that and the team stops shipping, which is how a small team ends up with nine dead workstreams.
Minimum viable segmentation means the fewest cuts that change the message. Ask three questions in order and stop at the first workable answer:
- Does the message change by role? If the security evaluator and the economic buyer need different things, that is your first cut, and often your only one.
- Does it change by industry? Only when proof points, regulations or vocabulary genuinely differ. A different logo on the case study doesn’t qualify.
- Does it change by account tier? Only once volume means tiering changes the spend as well as the label.
If two segments would receive the same message, they are one segment. You might sketch four and run two. Then let the data move you: too little engagement means changing the content or drilling down a level, and failing to ship means coming back up one.
Account-based work begins where the cover produces warm accounts. Run a panel webinar anyone can watch, then an invite-only roundtable for the 12 prospects who engaged most over the last two months, or invite a warm account onto your podcast. That is ABM orchestration, and it only works because the cover came first.
Which channels actually cover a buying committee?
Every instrument reaches a different slice of the buying committee, so the mix is the decision, and the one non-negotiable is that something stays on.
The instruments at a glance
Each one covers a different slice of the committee.
Coverage breadth is how much of a target account list the instrument can reach, not how well it converts.
| Instrument | Who it reaches | Breadth | Stays on |
|---|---|---|---|
| Paid display and programmatic | Committee members you cannot name | ●●●●● | While funded |
| LinkedIn paid | Named roles at named accounts | ●●●●● | While funded |
| Owned email | Everyone you have an address for | ●●●●● | Always |
| Organic social and founder posts | Whoever the algorithm decides | ●●●●● | Always |
| Content and search | People already looking | ●●●●● | Always |
| Events, webinars, partners | Few people, very well | ●●●●● | In bursts |
Sales outreach is missing from this table on purpose. Outreach is the strike that cover sets up, and counting it as coverage is the most common mistake in the category.
What it covers
Paid display and programmatic to a target account list. Load 2,000 accounts into a platform like RollWorks, Demandbase or StackAdapt and drive them to the right next step: a webinar, a white paper, a preview sign-up, sometimes a demo request. The ads appear in news feeds, sidebars and banners. It is cost-effective, and it is the only instrument that reaches a committee member you cannot identify by name. Priced per impression, its coverage and cost scale together.
LinkedIn paid. Much more expensive, with the highest CPMs in digital, and the most accurate B2B targeting by role and company. If the VP of Security at eleven named accounts needs to see something specific, nothing else comes close. Thought Leader Ads let you boost an individual’s posts, so buyers feel they know your salesperson or executive before they have ever met.
Organic social and founder posting. Cheap and compounding, but unpredictable. It reaches whoever the algorithm decides.
Owned email. This is the instrument we specialize in, so here is the straight answer on audiences. Less than 10% of any B2B audience you will find in bulk mail is opted in. Everyone in the category knows it, and we would rather say it out loud. That is exactly why email demands more diligence and audience management than any other channel. Done thoughtfully, it is among the most cost-effective: persistent, addressable by account, and the fiftieth send costs roughly what the first did. It is also the one instrument that keeps running when a budget gets reallocated mid-year. Its limit is real: a B2B email list reaches only the people you have an address for.
Content and search. Passive cover. SEO works when someone goes looking and sits idle when nobody does.
Events, webinars, community and partners. High trust, low coverage, reaching few people very well. Co-marketing, nearbound partnerships, influencers and user-generated content belong here too.
Sales outreach. This is the strike that cover sets up. Confusing the two is the most common mistake in the category.
Where it breaks
A buying committee can run to twenty-odd people, and you may have email addresses for four. Owned email covers those four persistently. Paid display is the only thing reaching the other sixteen, which makes paid load-bearing in any air cover design. How much of a committee a typical company can reach on owned channels is genuinely unsettled. Nobody has published good data on it, and that number decides how much of the mix has to be paid. Measure it in your own program.
The other gap is distribution. Marketers create content that never reaches a prospect because no channel carries it consistently. Air cover is how a content workstream gets distributed.
The committee math
Twenty people decide. You can email four of them.
That gap is the whole reason the mix exists, and it is why one instrument alone never covers an account.
Covered by owned email
4 of 20
The people who gave you an address. Persistent, addressable by account, and the fiftieth send costs roughly what the first did.
Reachable only by paid
16 of 20
The committee members you cannot name. Display and LinkedIn are the only instruments that put anything in front of them.
Where this lands
Paid is load-bearing, and owned email is the layer that survives a budget cut.
How much of a committee a company can actually reach on owned channels is genuinely unsettled, since nobody has published good data on it. That number decides how much of your mix has to be paid, so measure it in your own program.
How to run it
- Start with the account list, never the channel
- Keep an always-on layer of paid ads and email underneath everything else
- Let paid lean in where signals show activity
- Keep at least one owned instrument running at all times
How do you build a target account list you can reach?
A target account list works as air cover only when you know, account by account, which members of the buying committee you can put a message in front of.
Sales names the full universe and the accounts it wants worked first. If that list does not exist yet, the B2B prospecting work of building one comes first. Once it exists, map your reach against it.
What it covers
- Every account sales has named, including the ones not in market
- For each account, the committee members you have an email address for
- The members only paid can reach
- The roles nobody reaches yet, which tells you where list building goes next
Where it breaks
Lead counts hide whether the cover is landing. Track engagement breadth at the account level instead: how many accounts are engaging, and how many people inside each one. That is the logic behind counting known engaged companies.
How to run it
Work the list on a weekly or biweekly sprint:
- Review engagement at the account level
- Widen the audience where accounts engage, contract it where they tune out, and sunset people who never engage
- Swap assets at the end of their shelf life: one to two weeks for an email, four to six weeks for an ad
- Hold to industry-standard open and click-through rates. Broad cover may never hit gold-standard numbers like 30% true human opens or 1% to 2% ad click-through, and that is fine at this level
- Move engaged accounts into account-based plays, where tailored messaging should lift engagement well above that baseline
By the time an account reaches a salesperson, they should know who they are dealing with and what its problems are. Everything in the cover pushes toward that personal relationship with sales.
What does air cover cost when you own the channel?
Air cover belongs in the baseline of the budget, and owning at least one channel is what keeps it affordable enough to never switch off.
What it covers
On a $50,000 monthly marketing budget, $15,000 to $20,000 might fund air cover: an underlying layer of LinkedIn ads, email and display that never turns off and gets re-evaluated constantly. On a $10,000 monthly ad budget, $5,000 to $6,000 goes to foundational cover and the remaining $4,000 or so to conversion-focused ads and retargeting. That is far more efficient ad spend.
Where it breaks
When a budget shrinks by percentage, cover looks like the easy line to trim because it rarely produces a lead anyone can point to. Cut it and the paid layer disappears mid-year. The owned layer survives, because once the audience exists, each additional send costs about what the first did.
How to run it
- Fund it as a floor: healthy, sustained, well managed, and the last line you cut
- Nest every campaign under it so campaign money reinforces the cover
- Keep at least one owned instrument so the cover never goes to zero
The test takes one question. If you paused every paid campaign tomorrow, who in your top accounts would still hear from you?
Context on Outkeep’s Approach
Outkeep runs the owned email layer of air cover: building audiences against target account lists, managing them with the diligence a mostly non-opted-in B2B audience requires, and keeping the sends going when paid budgets move. We work alongside paid programs because the committee math demands it. Email reaches the people you can name, and paid reaches the ones you cannot. Long sales cycles punish every gap in coverage, and the owned channel is the one piece of the mix a company fully controls.
FAQ for Modern B2B Email Programs
What is marketing air cover?
Air cover is always-on marketing that keeps an entire market aware of you before anyone is buying. It reaches the accounts sales is not working yet through paid display, LinkedIn, owned email, content and events, so sales never enters an account cold.
How is air cover different from account-based marketing?
Air cover runs at the segment level across the whole target account list. Account-based marketing concentrates on a smaller set of accounts with tailored plays like invite-only roundtables. Air cover surfaces the engaged accounts that ABM then doubles down on.
What is ABM orchestration, and where does air cover fit?
ABM orchestration coordinates ads, email, content and sales outreach against the same accounts at the same time. Air cover is its always-on base layer. Campaigns and one-to-one plays sit on top and draw on the signal the cover creates.
Can you run air cover on a B2B email list that hasn’t opted in?
Most B2B audiences haven’t. Less than 10% of the B2B audiences found in bulk mail are opted in. It works when email gets more diligence than any other channel: careful audience management, sunsetting people who never engage, and content worth receiving.
How much of the marketing budget should go to air cover?
A workable starting point is 30% to 40% of the monthly marketing budget, or 50% to 60% of the ad budget, with the rest going to conversion-focused spend and retargeting. The split matters less than keeping it funded when budgets shrink.
How do you measure air cover if it doesn’t produce inbound leads?
Measure engagement breadth at the account level: how many target accounts are engaging, and how many people inside each. Compare open and click-through rates against industry standards, and review weekly or biweekly, swapping emails every one to two weeks and ads every four to six.
