The short answer
The US Microsoft partner CMOs who get the best return compare full-service agencies on evidence, not on the length of their service lists. They score each agency on five things:
- How well it understands the Microsoft partner model
- How it'll prove a link to pipeline and revenue, not just activity
- How focused its plan is
- Who owns the thinking on both sides
- The true total cost, including media and internal time
Why ROI is such a live question for US partners right now
US partners lean on agencies more than most. When we asked how marketing is resourced, the most common answer was a generalist marketing agency (38.2%), followed by a director or owner covering marketing alongside another role (32.7%), a dedicated Microsoft partner agency (31.1%) and a broad channel marketing agency (29.1%). Three of the top four answers were agencies.
The budget is there too. The average US partner invests around 5% of revenue in marketing, and almost two-thirds sit in the 3-5% band. That's $3,000-$5,000 for every $100,000 generated, so for a $20m partner you're talking about a seven-figure line on the P&L.
But the return is harder to pin down. Only 56.2% of US partners are confident they're getting good value from their marketing investment, and 43.1% either can't connect marketing to pipeline and revenue or aren't sure if they can. Add in Microsoft's shift towards rewarding net-new growth, and being able to show what your agency actually delivered matters more than ever, whether you're reporting to Microsoft, your distributor or your own board.
What US partners told us about where new business comes from
Before you compare agencies, it helps to know what "good" looks like. On average, US partners said marketing they generated themselves accounted for 26.6% of new business. That's between two and three in every ten new customers. Microsoft referrals brought in 19%, and distributor or vendor leads 15.7%.
The interesting bit is at the top. 52 of the 251 partners said marketing generated 40% or more of what they won. From experience, nobody gets there by accident. Those partners pick a few channels, stick with them longer than feels comfortable and resist chasing every new tactic. That's the bar a full-service agency should be helping you reach.
Generalist, channel or Microsoft specialist… which type of agency?
A good generalist agency can bring excellent creative and technical skills, so we wouldn't rule one out just because it works across industries. The question is whether the agency's knowledge helps it make better decisions for your business.
| Agency type | Share of US partners using one | Where it tends to be strong | What to check before signing |
|---|---|---|---|
| Generalist marketing agency | 38.2% | Creative, brand, web and broad digital skills | Can it separate your proposition from Microsoft's product messaging? |
| Broad channel marketing agency | 29.1% | Through-channel programs and vendor-led campaigns | Will your messaging be your own, or adapted vendor material? |
| Dedicated Microsoft partner agency | 31.1% | Co-op and MDF, marketplace, Microsoft sellers and partner propositions | Does it have the delivery depth to run the whole function well? |
The five things to compare for ROI
- 1
1. Microsoft partner fluency that actually changes the plan
Only 48.6% of US partners said they market their own proposition rather than just Microsoft's products, and almost a quarter named over-reliance on vendor-supplied material as a limitation. Ask each agency how it would make you stand out from the next partner with the same designations. Then ask how it would handle Co-op and MDF. The complexity of funding rules was the second-biggest blocker in the study (27.5%).
- 2
2. Measurement built in from day one
Ask how the agency will show where leads come from. A good answer involves agreeing what a qualified lead looks like with your sales team (in writing), tracking it inside your CRM, and reporting on pipeline and revenue, not just clicks and impressions. If reporting is pitched as an optional extra, treat that as a red flag.
- 3
3. Focus over volume
The average US partner runs 10 of the 20 marketing activities we asked about and plans to add another 8. We've watched partners spend 8% of revenue on nineteen activities and get less out of it than a partner spending 2% on two. A full-service agency that recommends doing everything, everywhere, at once is giving you a bigger invoice and not much more.
- 4
4. Who owns the plan
Competing internal priorities was the biggest thing limiting US partner marketing (35.1%). An agency can bring skills you'd struggle to hire, but somebody inside your business still needs to own the plan and decide what matters now and what can wait. Ask each agency what it needs from your team, how often, and who makes the call when priorities change.
- 5
5. The true total cost
Compare proposals on scope, senior involvement and your own workload, and clarify whether media spend, tools and other costs sit outside the fee. A cheaper retainer that needs ten hours a week of your time isn't cheaper.
How do you actually calculate agency ROI?
Keep it simple, and agree the formula with the agency before any work starts:
Marketing ROI = (gross margin from marketing-sourced and marketing-influenced deals - total marketing cost) ÷ total marketing cost
Total marketing cost should include agency fees, media, tools and the internal hours your team puts in. And count Co-op- and MDF-funded spend in that cost line too, even though it isn't coming from your own P&L. 74.6% of US partners funded by Co-op or MDF told us their marketing would shrink or stop if that funding disappeared, so you need to know what that money is really worth.
Early signs to track alongside the headline number
Because Microsoft partner sales cycles can be long, track a few early signs alongside the headline number:
- Qualified opportunities created
- Cost per qualified opportunity
- Marketing-sourced share of new business (against the 26.6% US average)
- Referrals from Microsoft's sellers and account teams
How do US Microsoft channel CMOs evaluate channel marketing agencies for scalability?
The short answer: they check whether the agency can grow output without growing cost, admin or risk at the same rate. In practice, that means testing five things before signing.
Repeatable campaign frameworks
Can the agency run one proven campaign across several solution areas, regions or reseller partners, adapted for each, rather than rebuilding from scratch every time?
Delivery depth
Who covers strategy, content, paid media, web and reporting, and what happens when a key person is on vacation or leaves? Ask to see the team that'll actually do the work.
Funding that scales with activity
As programs grow, more of the spend tends to run through Co-op and MDF. Ask how the agency keeps every activity claimable and builds the proof of execution as it goes, so a bigger program doesn't mean bigger claim risk.
Reporting that holds up at volume
One campaign is easy to track. Ten running at once isn't. Check the agency can report pipeline and revenue by campaign, solution area and partner inside your CRM.
Focus as you grow
Scaling shouldn't mean adding activities. The US partners in our research getting 40% or more of new business from marketing do fewer things for longer. An agency that scales by doubling the channel count is scaling the invoice, not the results.
How to make the final comparison fair
Give every shortlisted agency the same brief, ask to meet the people who'll actually do the work, and ask each one to talk through how they'd approach one of your offers, including the questions they'd ask first. Listen for questions about your customers, margins, sales capacity and delivery. An agency that jumps straight to recommending more activity hasn't understood the brief.
Before you sign, confirm reporting, approvals, ownership of your data and creative assets, and what happens when the agreement ends. A confident agency should be comfortable talking about its limits as well as its strengths.