layers
Layered storytelling
Switch between content formats live, based on how the room is responding. No quiet disengagement, no complaints that the material lacked depth, nobody left behind because of learning preferences.
About us
About slideAcross
Who we are, what we build, and why presentations should be conversations, not performances.
What we do
Built for the moment the conversation changes
Most presentation tools solve the same problem: helping you build a deck. slideAcross solves a harder one: what happens when you're standing in front of the room and the conversation goes somewhere you didn't plan for.
bolt
Slides on demand
When a question catches you off guard, new slides are created in real time from trusted documents and data already in your content library. The conversation keeps moving, and you never have to promise to follow up with something you should have had ready.
mic
Present, don't operate
Voice controls keep your attention on the audience, not the keyboard. Integrated conferencing brings live demos, product walkthroughs and webinars into the presentation itself, with no tab-switching or context loss.
AI-driven slide creation and a full suite of design tools make preparation faster too. But that's not what sets slideAcross apart.
With dataLayers, the same idea now reaches your data: branded presentations with the story already written, and the detail beneath them for anyone who needs to drill in.
slideAcross is built for sales teams, business leaders, educators, consultants and enablement teams who want their presenters walking into every room with an unfair advantage - and, with dataLayers, for the operations and data leads who run the business on numbers.
If your presentations are conversations, not performances, slideAcross was built for you.
Who we are
Introducing Affirmable Limited
slideAcross is a trading name of Affirmable Limited, founded by Martin Tanner in 2024. Today it has evolved into an innovative and fast-growing technology development company. We are based in the UK and primarily develop and sell our own products - apps and web apps.
Of course, these products include slideacross.com for multilayered, interactive presentation software. Our other flagship product is ithank.uk, a digital solution for quick and easy thank you cards. It's aimed at parents and newlyweds, as well as businesses looking to send bulk thank you cards with a personal message for each recipient.
We also deliver a range of consultancy and technology design services. These typically draw on Martin's experience, both in software and app/web-app design and in his previous career in data, solution design and bid management. Martin spent nearly 20 years working at a senior level across recruitment and welfare-to-work, and many of his professional insights draw on this expertise. slideAcross grew out of that career: years of presenting bids and data to boards and panels, where the question that mattered was rarely on the next slide.
Our values
Values-driven, community-minded
We are a values-driven company, committed to investing in community and inclusion. Many of our products and services include a substantial discount for charities and non-profit organisations. Please contact us for more information.
Company details
- Registered company
- Affirmable Limited
- Company number
- 14461956 (UK)
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
Presentations that are always on point
See what slideAcross can do for your next conversation.