Demand generation is the least well defined line item in B2B marketing, which is why proposals under that heading vary so wildly in price and content. To one agency it means paid media and a form: budget in, contacts out. To another it means the whole revenue engine, including positioning, content, webinars, email nurture, sales development scripts and the reporting that connects a first touch to a closed deal. Both are legitimate businesses. They are not the same purchase, and a buyer who does not force the distinction early ends up comparing a media buying quote against a strategy retainer and choosing on price. This page sets out what sits inside each version, what moves the cost, and how to make two candidates quote the same thing.
Demand creation and demand capture are different jobs
Capture is straightforward to buy and easy to measure: someone is already searching for what you sell, and paid search, comparison content and a good landing page put you in front of them. Creation is harder on both counts. It targets buyers who do not yet know the category, or who know it and are not looking today, and it works through content, events, communities and paid social that produce no immediate form fill. The two need different budgets, different timelines and different measurements, and the most common failure in this market is buying creation and grading it on capture metrics for one quarter before cancelling it. Decide which of the two your pipeline is short of. If qualified searches exist and you are not winning them, buy capture first. If nobody is searching for you at all, capture spend will find only the fraction of the market already in motion.
The measurement question decides the relationship
Ask each candidate exactly one question early: what number will we both look at in month six, and where does it come from? The answers separate the field faster than anything else in the proposal. An agency that names a pipeline figure and can describe how it is attributed, including what happens when a deal has eight touches across nine months, is thinking about your business. An agency that names impressions, engagement rate or marketing qualified leads without a definition is proposing to be graded on something it fully controls. Insist on a written definition of a qualified lead that your sales team agreed to, not one the agency drafted, and insist that rejected leads flow back with a reason. Without that loop the volume number will rise and the pipeline will not, and neither side will be able to say why.
What moves the price
Three inputs dominate. First, media spend management: some agencies bill a percentage of spend and some a flat fee, and at higher budgets the difference is substantial rather than cosmetic. Second, content production, because the deliverable that costs real money is not a blog post, it is an original research piece, a webinar with a named speaker or a case study that requires interviewing your customers. Third, the technical plumbing: marketing automation, CRM integration, lead routing and attribution reporting can absorb an entire first quarter, and whether that setup is included or billed separately is often buried. When you buy B2B demand generation services, ask both candidates to break their fee into media management, content units and platform work so you can see which of the three you are really paying for.
How to test a candidate in one hour
Give each candidate the same brief: your product, your average deal size, your sales cycle length and last quarter's pipeline sources, then ask what they would do first and why. The useful answer starts with a question about your data quality or your sales process rather than a channel recommendation, because nobody can sensibly pick channels before knowing which deals actually closed and where they came from. Then ask for one client where the engagement did not work and what happened. An agency that has never had one has either not been operating long or is not going to tell you the truth about yours. Finally ask who does the work day to day, and whether that person is in the room. Senior people win B2B pitches and junior people run B2B accounts, and the gap between the two is worth asking about before you sign rather than in month three.
Questions people ask about demand generation agencies
How is demand generation different from lead generation?
Lead generation is a volume purchase: contacts delivered to your CRM. Demand generation is meant to create and shape interest so that the contacts arriving are the right ones and arrive warmer. In practice many agencies use the terms interchangeably, so ignore the label and read the deliverables.
How long before a demand generation programme shows results?
Capture work can move within weeks because the demand already exists. Creation work is measured against your sales cycle: if deals take six months to close, a first quarter of pipeline influence rather than closed revenue is the realistic checkpoint. Agree the checkpoint before starting so cancellation is a decision rather than an argument.
Should the agency own our email nurture?
Only if they can also work inside your CRM and honour unsubscribes cleanly. Commercial email carries specific obligations including honest subject lines, a working opt out and prompt processing of opt out requests, as the FTC's CAN-SPAM compliance guide sets out, so ask how suppression lists are handled across both systems.
Is a percentage of media spend a fair fee model?
It is common and it is transparent, but it rewards spending more. At small budgets it is usually cheaper than a flat retainer, at large budgets usually not. Ask for both quotes and compare them at your actual planned spend rather than in the abstract.