Choosing a B2B Advertising and Landing Page Partner: How to Judge an Agency [2026]

For the marketing lead at a B2B company, choosing which partner handles your online advertising and your landing pages is a decision that shapes future growth.
When advertising management and landing page production go to separate companies, the work stays piecemeal: the targeting behind the ads and the case the landing page makes drift apart, and conversion rates often stall.
This article sets out concrete criteria for identifying the right agency for your B2B product, together with practical advice for avoiding the usual pitfalls.

Summary
・Handing advertising management and landing page production to a single partner end to end deepens the flow of data between activities and lifts the conversion rate (CVR)
・B2B products involve a long consideration process, so it matters that the agency commits not only to cost per acquisition (CPA) but to meeting rates and return on investment (ROI)
・An agency strong on integration with marketing automation (MA) tools such as HubSpot will nurture the leads you win far more precisely
・To maximise results, avoid leaving everything to the agency and build a routine for feeding back what your sales team hears directly from customers

▼Who this is for
・Anyone concerned about the number of leads or meetings they are generating ・Anyone using separate companies for advertising management and landing page production and not seeing results
・Anyone whose leads are poor in quality and never turn into orders
・Anyone looking for a partner to work alongside them on digital marketing, from strategy through to execution

1. The advantages of having an agency handle B2B advertising management and landing page production

In B2B, winning leads steadily online and turning them into revenue depends a great deal on having a specialist agency that can look across all your marketing activity and optimise it.

If you try to handle all your advertising management and landing page production in-house,
“we cannot keep up with the latest platform trends”
“our staff are overloaded, so the work never gets done”
you will often hit walls like these, in resource and in know-how.

The biggest advantages of using a specialist agency are

①cutting wasted spend through up-to-date know-how
②objective data analysis and a fast improvement cycle

— two in the main.

On cutting wasted spend through up-to-date know-how: by keeping track of the latest trends in a fast-moving industry, from search engine algorithm changes to advertising platform updates, and allocating budget accordingly, an agency helps you keep cost per acquisition (CPA) from climbing.

On objective data analysis and a fast improvement cycle: free of internal assumptions, an agency identifies problems from objective data such as user behaviour histories and heatmaps, and puts fixes in place as fast as possible.

Drawing immediately on digital marketing expertise you do not have in-house, and handing over everything from ad targeting design to data-driven landing page optimisation (LPO) and the smooth handover of customer information to sales, frees your own people to concentrate on the core work they should be doing.

2. Seven things that matter when choosing a B2B advertising and landing page partner

Here are seven criteria to check before you appoint an agency, explained from a practical and technical angle.

2.1 Can they run advertising and landing page production end to end and maximise the conversion rate?

When the two sit with different companies, the message in the ad (what the searcher was looking for) and the case made on the landing page’s first screen easily drift apart, and that is a major driver of bounce rates.
Choose an agency that can handle both end to end and you get a consistent message design built on an accurate reading of the keywords people search and the areas they care about.

Response data from A/B tests on the ads can also be fed straight into changes to the landing page layout and into form optimisation (EFO), giving you a fast improvement cycle, and the conversion rate rises considerably as a result。

2.2
Do they have concrete business results in B2B?

Surface measures such as “tens of thousands of monthly page views” or “maximising impressions” do not measure B2B results.
What to look for are results tied directly to revenue: “we held CPA to X yen, won X marketing qualified leads (MQLs) a month, and turned X of them into meetings.”
successful work in your own industry, or in a similar business model— ask about this in detail.

2.3
Do they look beyond CPA to meeting rates and ROI?

Winning a lot of cheap leads is no use if they are all new recruits without sign-off authority or students simply gathering information; your inside sales team will only burn out. Check carefully whether the agency has set “capturing lead data” as the finish line. Look for a partner that commits to the proportion of leads that become sales qualified leads (SQLs, the prospects sales should approach directly) and to improving the ROI calculated from the orders you eventually win.

2.4
Do they understand the complex decision-making specific to B2B?

Buying a B2B product starts with recognising a latent problem and runs through comparing several tools and an internal approval process involving other departments before a decision is reached, which takes months or even years. An agency that only proposes short-term harvesting — run the ads, send people to the landing page, and the revenue follows — carries risk. Judge whether they can classify search intent by funnel stage in detail and map a strategic customer journey that stays alongside a long consideration process.

2.5
Can they produce the content that drives lead generation, such as white papers?

However precisely the ads bring your target to the landing page, generating leads is hard if the page carries no compelling material that solves the customer’s problem — industry research reports, collections of case studies, and the like. Check whether the agency can take useful content people actually want to download from concept through to production, with a deep understanding of the latent needs and pain of B2B buyers.

2.6
Do they know how to hand leads to sales, and how to work with MA tools?

Making sure no prospect is dropped and that leads reliably become meetings depends on MA tools such as HubSpot.
Where there is no mechanism for passing marketing’s leads smoothly to sales, friction between the two departments follows.
An agency that can help you build a revenue process on The Model — scoring prospects according to the pages they view and the documents they download, then notifying a salesperson at the right moment once a threshold is reached — is worth a great deal.

2.7 Does their communication keep pace with your team, and does their pricing suit you?

If all you receive is a monthly template report with the figures copied straight out of the dashboard, you will be slow to change course in a fast-moving digital market.

What matters is whether they can set out concrete improvements at your regular meeting, backed by detailed analysis.

Check the pricing model as well (a percentage of media spend, a fixed monthly fee, and so on) and any minimum contract term. Agree in advance that the contract lets you change activities and budget flexibly as your business grows.

3. Three reasons to hand advertising and landing page production to one partner

When marketing work is outsourced, NowVillage recommends keeping advertising management and landing page production with the same agency.

There are three main reasons.

3.1 A consistent message design prevents drop-off

Someone who clicks an ad arrives at the landing page looking for the answer to the keyword they searched and the claim the ad made.
So when the advertising company and the landing page company are separate, the benefit claimed in the ad (say, “halve your working hours”) and the message on the landing page’s first screen (say, “cut your costs”) easily diverge, which risks pushing the bounce rate up.
An agency that handles both end to end can carry its analysis of search intent straight into the landing page headline and layout, preventing drop-off and converting a high proportion of visitors.

3.2 Connected data and a fast improvement cycle

Another real strength is being able to feed data from the advertising platforms — which keywords and audiences converted — straight into landing page optimisation (LPO) using heatmap tools and the like.
At NowVillage we analyse the responses from ad A/B tests weekly and are set up to act on them quickly, whether that means form optimisation (EFO) or swapping out content.

3.3 A large cut in the communication load on your team

With separate companies, you hold regular meetings and exchange daily email with each of them, which doubles the management burden on your staff.
There is also the worry that you have to sit in the middle and relay figures from the advertising side to the landing page side, which invites missed information and delays in getting work done.

Hand everything to one agency and you have a single point of contact. The awkward coordination between several parties disappears, so your marketing staff can concentrate on the core work that creates revenue: sharpening the strategy and feeding insight back to sales.

If, in your current marketing,
“the ads and the landing page are not working together”
“we are not happy with our current agency’s results”
— if any of this sounds familiar, do take up a free consultation with NowVillage.

A digital marketing specialist will look objectively at where you stand and propose concrete steps towards higher revenue.

4. What to check when assessing an agency

Going a step further, here is how to assess expertise in landing page production and in advertising management separately.

4.1 What to check when assessing a landing page producer

・Industry-specific knowledge
Check whether they have successful work in a field close to yours, such as IT, SaaS or manufacturing.
The key is whether they understand the terminology correctly and can write logically for your approval process.

・A match between their strengths and your product
Ask a producer who specialises in cosmetics to build a landing page for a SaaS service and the case it makes may well fall flat.
Working out where their strengths lie is the shortest route to success.

・Support after launch
A landing page is not finished when it goes live; the improvement that follows (LPO) decides the result.
Check whether they will propose improvements from A/B tests and heatmap analysis and consult with you on an ongoing basis.

4.2 What matters when assessing an advertising agency

・Expertise in B2B advertising management
B2B search advertising and ads on Facebook and LinkedIn call for advanced skill in reaching the exact person at the target company. The approach differs from running consumer ads.

・Certifications and the team on your account
Check whether they hold Google Ads and Yahoo! Ads certifications and whether a dedicated manager is assigned to you. If one person is juggling dozens of accounts, you cannot expect careful work.

・Connected data and reporting
Choose an agency that goes beyond the advertising dashboard to connect with your CRM and MA tools and analyse ROI on a meetings basis. At NowVillage we manage everything in one place through our HubSpot integration, making the whole funnel visible from lead generation to meetings.

5. How to get the most out of working with an agency

Where an agency has been appointed but the expected results do not come, the reasons tend to be the same.
To see results take off, client and agency have to work towards the same goal side by side. Here are three concrete steps.

5.1 Share your business-wide problems and KPIs as concrete numbers

At the kick-off meeting, give the agency concrete numbers worked back from your ultimate business goal.
Ideally that means detail such as: “We want to generate 50 million yen in revenue online this year. Average order value is one million yen and we expect to win 20% of meetings, so working back, we need 25 real meetings a month.”
The clearer your target number of meetings and your acceptable cost per acquisition (CPA), the more accurately the agency can allocate advertising budget and pick the keywords to push.

5.2 Feed back what sales learns on the ground

Build a routine for regularly telling the agency how the calls and meetings with the leads you won actually went.
Comments from the front line are extremely valuable: “leads from that particular keyword had budgets that did not match our price range, so we lost them”, or “document requests went up, but every one of them was still comparing us with competitors”. Feeding that qualitative detail straight into ad targeting and the case the landing page makes is the fastest route to better-quality leads.

5.3 Do not judge success on short-term measures alone

In digital marketing, and in SEO and content work in particular, visible results such as higher rankings and new leads take six months to a year to appear.

Writing the work off after one or two months because “enquiries are not going up” is premature. In the early stages, look at intermediate measures such as more impressions in search results and longer time on site, and take a medium- to long-term view as you run the improvement cycle.

What B2B landing page production costs, and what you get

The cost of a landing page varies a great deal with how much of the work the producer takes on. Pick the price band that suits your budget and the problem you want to solve.

Price band	What it covers
Under 100,000 yen	A simple design built on an existing template plus basic coding. You have to supply all the copy and images yourself, and improvement support after launch is almost never included.
100,000 to 300,000 yen	An original design suited to your target audience, plus a page outline. Writing and competitor research, which call for specialist knowledge, remain your responsibility.
300,000 to 600,000 yen	Everything from upfront competitor research through writing that speaks to the target’s thinking, original design and coding. At this price you can expect a strategic landing page that uses the logical argument B2B calls for.
600,000 yen and up	Everything from strategy before production to LPO consulting after launch. Continuous improvement through A/B testing is included, which suits you if you are after revenue growth over the long term.

6. Common mistakes when choosing an agency, and how to avoid them

Finally, here are the mistakes people tend to make in choosing an agency, and concrete ways to head them off.

6.1 Mistake 1: choosing on low upfront cost alone

Cheap production fees and monthly management fees are no use if the work never produces meetings and never contributes to revenue; the money you invested is simply wasted.
To avoid this, judge on ROI: how much in orders can you expect in the end for the cost you put in? An agency with strong improvement support after launch usually delivers better value for money.

6.2 Mistake 2: handing everything over without sharing anything, then leaving them to it

An agency knows digital marketing methods well, but it does not start out with a deep knowledge of your industry or a full picture of what your existing customers actually struggle with.
To avoid this, share your product’s strengths and what customers tell you directly. Close communication on both sides, and a willingness to refine the work together, is what drives you towards the goal.

6.3 Mistake 3: cancelling early without allowing for the B2B consideration period

This is where, one or two months in, you panic that “meetings are not going up” and end the contract.

To avoid it, remember that B2B products have a long buying cycle, running from information gathering through internal approval to the order. Time is needed for data to build up and for improvements to bear fruit. We recommend running the improvement cycle for at least six months and building results steadily.

7. Why clients choose NowVillage: end-to-end support

NowVillage has supported more than 500 companies in all, helping them attract customers and grow revenue through digital marketing. What clients rate most highly is our end-to-end support, which connects online advertising management and landing page production seamlessly.

We are set up to handle every stage in one place: ad targeting design, a landing page outline matched to search intent, design, coding and continuous improvement after launch (LPO). That avoids the mismatches and delays that come from spreading work across several suppliers, and lets us turn user response data from the advertising straight into landing page improvements for a fast improvement cycle.

Alongside that core link between advertising and landing pages, we can also help you build MA and CRM foundations with tools such as HubSpot, so the prospects you win are managed and nurtured properly.

We analyse data closely and propose improvements every week, and we maintain a contract renewal rate and an improvement rate of over 90%. Consultants with real expertise work alongside you from maximising lead generation through to creating meetings.

If, in your current marketing,
“We do not know where to start”
“We want concrete recommendations that suit our business”
— if any of this sounds familiar, do take up a free consultation with NowVillage.

An experienced consultant will listen carefully and propose the digital marketing support best suited to generating revenue for you.

Our other articles on B2B may also be useful.

8. Frequently asked questions about choosing a B2B marketing agency (FAQ)