Explainer Videos for B2B: What Works, What It Costs, and How to Choose an Explainer Video Agency

Most B2B explainer videos fail in the script, not the edit. The animation is slick, the voiceover was expensive, and six months later nobody can say what the video was for. This guide covers what actually makes explainers work for B2B companies, what they honestly cost in the UK, where they fit alongside formats like podcast clips, and how to choose an explainer video agency that will not waste your budget.

A note on where this comes from. Earworm is a B2B video production agency that spends most of its time making video podcasts, so we see a lot of B2B video budgets spent well and spent badly. The patterns below are the difference.

Script First. Everything Else Is Decoration

An explainer video is roughly 150 to 220 words read aloud. That is the entire product. The animation, the music and the voiceover exist to hold attention whilst the words do the work.

So the script comes first. Before you choose a style, before you brief an agency, before anyone opens an editing suite. If you cannot write one page that states the problem, the product and the next step, motion design will not rescue you. It will just make the confusion prettier.

A structure that reliably works:

1. The problem, stated in your buyer's words
2. Why it costs them money, time or risk
3. Your product in one sentence
4. How it works, in three beats at most
5. Proof (a client name, a result, a credible detail)
6. One clear call to action

Any agency worth hiring will insist on this order. If storyboards arrive before the message is signed off, you are buying decoration.

One Idea Per Video

The most common brief in B2B: "we need a video that explains the platform". The platform does eleven things. The script tries to cover nine. The viewer retains none.

Effective explainers carry one idea, for one audience, with one action. Pick the problem your best customers came to you with first, and make the video about that. The other ten features can wait, or earn their own videos later.

A useful test: describe the video in a single sentence without using the word "and". If you cannot, the brief is too broad. Splitting one bloated video into two or three focused ones usually costs less than you would expect, and each one can be tested against a specific audience rather than shrugged at by everyone.

Length Discipline: 60 to 90 Seconds Is the Default

For a cold audience (homepage visitors, paid social, outbound), 60 to 90 seconds is the ceiling, not the target. Attention falls away steadily from the first second, and every sentence you keep is a bet that the viewer stays for the next one.

Warm audiences can take more. A two or three minute walkthrough sent after a demo request, or embedded in a sales follow-up, works because the viewer has already opted in. The mistake is making one three minute video and using it everywhere.

The practical rule: write the script, cut a third, then cut the sentence you are proudest of. It is nearly always the one that serves you rather than the viewer.

Live Action or Animation? The Honest Trade-Offs

Agencies tend to recommend whichever one they sell. Here is the neutral version.

When animation wins

Abstract products. Software, payments infrastructure, compliance, data platforms. There is nothing to film, so animation gives you full control over how the invisible thing is pictured. It is also easy to update (swap a screen, re-record a line) and does not date when staff leave or the office moves.

The risk is sameness. A great deal of B2B animation looks identical: flat characters, floating dashboards, a relieved person at a laptop. If your agency's whole portfolio looks like that, your video will too.

When live action wins

When people are the product. Services businesses, founder-led sales, anything where trust in specific humans closes the deal. A real face builds credibility that illustration cannot.

The trade-offs are cost and shelf life. Price scales with crew, kit, locations and talent, and the video dates the moment your presenter leaves the company. Reshoots cost real money. Re-rendering an animation does not.

The quiet third option

For software, a screen recording dressed with motion graphics and a good voiceover is often the honest answer. It shows the actual product, it is cheap to update when the interface changes, and buyers increasingly distrust explainers that hide the interface behind metaphor.

What Explainer Videos Cost in the UK

Almost nobody publishes a rate card, which is how buyers end up with quotes ranging from £500 to £50,000 for "a two minute video". These brackets reflect what the UK market typically charges. Treat them as orientation, not quotes.

• Template animation (under £1,000). Stock scenes, library music, your logo at the end. Acceptable for internal comms. Weak for anything a buyer will see.
• Freelancer or small studio (£1,000 to £5,000). Simple bespoke 2D animation, usually with the script left largely to you. Good value if you already have a strong script.
• Established studio, bespoke 2D (£5,000 to £15,000). Proper script development, custom illustration, professional voiceover, structured revision rounds. Where most serious B2B explainers land.
• Premium animation and character work (£15,000 to £30,000 plus). Distinctive illustration, character design, sound design. Worth it when the video fronts a major launch, not for a feature page.
• Live action (£5,000 to £30,000 plus). One presenter, one location and one shoot day at the bottom end. Crew, actors, multiple locations and a director at the top.

What moves the price: rounds of script development, bespoke versus library illustration, voiceover usage rights, revision rounds and shoot days. What does not improve results at any price: adding more features to the script.

Explainer Videos or Podcast Clips? Different Jobs

These two get lumped together as "video content" and they do entirely different work, so it is worth being clear-eyed here.

An explainer answers "what does this do and why should I care?". It is scripted, evergreen and lives on your homepage, product pages and sales decks. You pay once and use it for a year or two.

Podcast clips answer a different question: "do I trust these people?". They put real faces and unscripted expertise in front of your market every week. One recording becomes YouTube episodes, LinkedIn clips and audio feeds, so the cost per asset falls the longer you run the show. That is the model behind programmes like The CFO Playbook, which we produce with Soldo for a CFO audience, and we measure what those clips actually do through Insight Studio, our audience analytics product.

The honest guidance: if buyers do not understand your product, fix that with an explainer first. If they understand it but do not yet trust you, a sustained format like video podcast production (from £1,500 a month) will do more than a third explainer ever will. Mature B2B brands usually run both. Explainers for the product, a show for the people.

Common Failure Modes (and How to Avoid Them)

• The feature laundry list. Nine features in ninety seconds means zero features remembered. One idea per video, as above.
• No audience definition. "Decision makers" is not an audience. A finance director evaluating spend management software is. If the brief cannot name the viewer, the script cannot speak to them.
• The committee script. Every stakeholder adds one sentence. Each addition is reasonable. The total is unwatchable. Give one person final sign-off.
• No distribution plan. "It will live on the website" means it will die on the website. Decide where the video runs (paid social, outbound, sales follow-ups, event screens) before you write it, because placement changes the script.
• No measurable job. A video that is "for awareness" cannot fail, which also means it cannot succeed. Give it a job: demo requests, time on page, reply rate on outbound.
• Style-first briefs. "Make it like that Dropbox video" produced a decade of identical explainers. Style should follow the message, not replace it.

How to Choose an Explainer Video Agency

Choosing an explainer video agency comes down to process, not portfolio. Most showreels are the best five projects from the last five years. What predicts your outcome is how they work, so interrogate that instead.

• They push back on the brief. A good agency asks who the video is for and what it needs to change before they quote. An agency that says yes to everything will say yes to the feature laundry list too.
• Script development is a named phase. There should be a writer, a message sign-off, and storyboards only after that. If the proposal jumps straight to visual style, walk away.
• Relevant B2B work. Selling to a buying committee over a six month cycle is not the same as selling trainers. Ask to see work made for buyers like yours, and ask what it changed.
• Fixed scope in writing. Deliverables, revision rounds, voiceover and music licensing, and who owns the source files. Ambiguity here is where budgets die.
• Format honesty. They should recommend animation, live action or screen capture based on your product, not their showreel.
• They ask about distribution and measurement. Where will it run, and how will you know it worked? An agency that never asks is selling you a file, not an outcome.

Talk to Earworm

Earworm is a Bristol-based, video-first B2B agency working with clients across the UK and US, including Soldo, IG Group and Experian. If you are weighing a one-off explainer against something longer-running, our video production agency page explains how we approach B2B video, or you can book a call and talk it through with us.