/ MAGAZIN
A great customer testimonial is one of the most effective formats in B2B marketing—and it can be produced in a single on-site session lasting just a few hours.
Because nothing is more credible than your own customers explaining why they chose you. Testimonials on a product page can increase conversions by up to 34%, and video significantly outperforms written reviews: video testimonials lead to 2.7 times more purchase decisions than text-only reviews, and those who watch a testimonial video are nearly 8 times more likely to convert than those who don't. In the B2B sector, testimonial videos rank third in terms of ROI—only product demos and explainer videos perform better. (Source: WiserNotify)
For a company like Optalio, which sells complex production planning software, this is gold: a prospect weighing whether the switch is worth it is more likely to believe a supply chain manager who uses the software themselves than any glossy brochure.

Faster than most people think. With Optalio and Berger S2B, we captured the entire audio track on-site in just a few hours: interviews with the managing director and the supply chain manager, plus matching B-roll footage from the facility. No second shoot day, no weeks of back-and-forth—one appointment, one team, and it’s in the can.
Berger S2B manufactures sealing and elastomer components for industrial clients—a facility where machines and production lines don't just pause for a film crew. We were right on-site, interviewing the managing director and the supply chain manager one after the other during ongoing operations, while capturing B-roll from the production floor in between. Everything was handled compactly in one appointment, without anyone having to rearrange their day around us.

Because in manufacturing, every interruption costs money. Machines that have to be shut down and restarted, employees who lose their rhythm, delivery deadlines that won't wait – a shoot that brings operations to a standstill is not an option for industrial clients. That is exactly why we plan testimonial shoots to fit seamlessly into your daily routine: short, focused interview blocks instead of elaborate setups, and B-roll captured right where the work is already happening.
Essentially just three things: a contact person who can explain the decision (usually management or procurement), someone from day-to-day operations who can describe the practical side (like the supply chain manager here), and a few hours of on-site access for interviews and B-roll. We take care of the rest – from the list of questions to the final edit.
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How long should a testimonial video be?
60 to 90 seconds is considered the sweet spot – short enough to hold attention until the end, long enough to make a real point.
Is one interviewee enough, or should there be multiple perspectives?
Two perspectives, as in the Berger S2B case – one strategic (management) and one operational (supply chain manager) – often come across as more credible than a single voice.
Does operations have to be interrupted for the shoot?
No. Interviews can be conducted during breaks or alongside daily business, and B-roll is captured while work is ongoing – which is why the entire shoot usually only takes a few hours.
What is B-roll and why is it needed?
B-roll consists of supplementary footage without audio—machines, hands at work, or the production environment. It visually breaks up the interview and illustrates what the client is actually talking about.
How quickly will the finished video be ready to use?
Depending on the scope of post-production, it is typically ready for use on your website, in sales decks, or on social media within a few weeks of the shoot.