About
Most agencies start from scratch. We start from what's already running.
Eight years of running campaigns, building sites, ranking content and wiring AI workflows means we don't start from zero on each project. The groundwork — playbooks, eval harnesses, design system, analytics, automation rails — is already in place. Your campaigns and products launch from it.
Groundwork in place
Eight-year codebase, design system, automation pipelines — already running.
Same-day decisions
No 12-month decks. We move when the data does, weekly.
Compounding output
Every campaign, every fix, every workflow makes the next one sharper.
Mediseo is the platform · your work is what we launch
Three offices, one team.
Every engagement is led by a partner — never juniors fronted to senior accounts. Swedish-founded, with offices in Málaga, Sandefjord and Oslo, plus a network of specialists we trust on tap when a project needs them.
- PS
Petter Sondov
Partner · Technical & Creative Lead
Designer, developer and AI brain in one — an idea machine who keeps the technical and creative side running for every single client.
- Design
- Campaigns
- Web development
- AI
- BR
Børge Ragnvald
Partner · Sales
Builds the relationships and opens the doors that bring the right projects our way.
- L
Liz
Billing
Keeps the finances running smoothly — invoices, follow-ups and the full overview.
- S
Stian
Sales Agent
Follows leads the whole way — from first hello to signed deal.
- S
Sanna
Recruitment Partner
Finds and brings in the people who'll build the team further.
- D
Dagfinn
Managing Director
Keeps an eye on things from above and makes sure the formalities are always in order, so the rest of the team can work with clients undisturbed.
- J
JH
Sales Agent
Takes the first conversations and works out what the client actually needs.
- PS
Petter Sondov
Partner · Technical & Creative Lead
Designer, developer and AI brain in one — an idea machine who keeps the technical and creative side running for every single client.
- Design
- Campaigns
- Web development
- AI
- BR
Børge Ragnvald
Partner · Sales
Builds the relationships and opens the doors that bring the right projects our way.
- L
Liz
Billing
Keeps the finances running smoothly — invoices, follow-ups and the full overview.
- S
Stian
Sales Agent
Follows leads the whole way — from first hello to signed deal.
- S
Sanna
Recruitment Partner
Finds and brings in the people who'll build the team further.
- D
Dagfinn
Managing Director
Keeps an eye on things from above and makes sure the formalities are always in order, so the rest of the team can work with clients undisturbed.
- J
JH
Sales Agent
Takes the first conversations and works out what the client actually needs.
How we got here
- 15
2018
Founded
After years inside large corporations and small operators, the founders refuse the scale-versus-care trade-off. Mediseo opens as a deliberate alternative — built to overdeliver without burning out.
- 25
2019
SEO & web, full-time
Mediseo becomes the day job. Full-time SEO, web and lead-gen for clients across Spain, Norway and Norway — operations running from Sandefjord.
- 35
2022
Málaga office opens
We incorporate Mediseo formally and open the Málaga office — our southern-European foothold, joining Sandefjord and Oslo as our third desk.
- 45
Nov 2022
AI from day one
ChatGPT launches. We start integrating LLMs into client workflows the same week — long before 'AI agency' was a category.
- 55
Today
Three offices, end-to-end
AI implementation + marketing + automation as one integrated operating system, run from Málaga, Sandefjord and Oslo. Model-agnostic — Claude, GPT, open-source — whatever fits the job.
Three offices
The desks behind the work.

Oslo — Aug ’18

Sandefjord — Mar ’19

Málaga — Sep ’22
Four words we try to live by.
Not grand claims about our values — just four words for how we try to talk and work.
01
Warm
We use plain language.
02
Precise
We measure, never overstate.
03
Curious
We ask, then suggest.
04
Steady
We don't hype.
Where we're based
We work with clients in Norway and Spain. These are just the desks we work from.
Office
Norway
Sandefjord
Up and running since 2019. Where SEO and web work for our Nordic clients gets done.
Office
Norway
Oslo
Where it all started in 2018 — the founder's home turf.
Office
Spain
Málaga
The Calle Larios district. Strategy, AI implementation and marketing run from here. Opened in 2022 — our southern-European desk.
What we can do for you and your business.
Tell us briefly what you need help with — a new website, more visibility on Google, or just a once-over. We get back within a working day, usually with something concrete.