Freelance presentation and pitch deck design
I’m Maria Kalavrezou, a senior freelance graphic designer in the UK. I design executive presentations, pitch decks and presentation templates in PowerPoint and Keynote, for corporate teams and for agencies pitching for new business. The job is to turn a strategy, a set of findings or a sales argument into slides a room can follow.
Clients
Who it’s for
- Leadership and communications teams preparing an executive or board presentation
- Agencies that need a senior designer on a new‑business pitch
- Marketing teams that need a sales or capabilities deck in the company brand
- Teams that need a PowerPoint or Keynote template other people can build slides from
Scope
What’s included
- Executive and board decks
- The story, the slide structure and the design, built inside your brand guidelines.
- Pitch decks and pitch concepts
- Concept development and the deck itself, for agency and in‑house pitches.
- PowerPoint and Keynote templates
- Master slides and layouts your team can keep using after the project ends.
- Charts, diagrams and infographic slides
- Data and processes redrawn so the point of each slide is obvious.
Experience
Where I’ve done this
Decks have run through every role I’ve had. At Ogilvy I produced presentation materials for B2B clients including Mastercard, Vodafone, Iron Mountain and Oracle. As brand manager at Cushman & Wakefield I looked after stakeholder-facing presentations inside a global brand system. As a freelancer I’ve designed pitch concepts and executive-facing decks for agencies and brands, and the Tokenise brand guidelines were delivered as a slide system.
Selected work
Related case studies

Tokenise
2023–2024Brand identity development
A brand system for a regulated financial venture within the VERO ecosystem.
- Brand identity
- Motion / video / social
- Presentations

VERO
2023–2024Design support: video, social & events
Design support across video, social and events.
- Motion / video / social
- Campaigns
- Presentations

Iron Mountain
2015–2017Brand refresh
A brand refresh for a global data management and secure storage brand.
- Brand identity
- Infographics / data storytelling
- Motion / video / social
Good to know
Questions clients ask
- Do you design in PowerPoint, Keynote or both?
- Both. I design presentations and templates in PowerPoint and in Keynote, and I use Figma, Illustrator and InDesign alongside them when a deck needs custom graphics.
- Can you work within our existing brand guidelines?
- Yes. Most of my presentation work has been built inside a company’s existing brand guidelines, including global brand systems at Ogilvy clients and at Cushman & Wakefield, where I was brand manager.
- Can you help with a pitch deck for a new-business pitch?
- Yes. I’ve worked on pitch concepts and pitch decks as an agency designer and as a freelancer, from the early idea to the finished slides.
- Can you redesign a presentation we already have?
- Yes. Send the existing deck with a note on who it’s for and what it needs to achieve, and I’ll come back to you on scope and timing.
Services
Other services
- Editorial & publicationMagazines, reports and books with concept-led artwork.
- Brand identity & systemsIdentities and brand systems, from proposal to guidelines.
- Infographics & dataDense information turned into clear visual stories.
- Freelance design supportA senior designer for agencies and in-house teams.
- Digital product & UX/UIProduct concepts and interfaces that feel simple and human.
- Motion, video & socialVideo, social and event creative for fast-moving channels.
Get in touch
Let’s work together.
Tell me about your project and I’ll get back to you.