Our story
Built in Stockholm, Sweden. Changing telecom everywhere.
Born from frustration
Telness Tech was born out of frustration. Frustration with the needless complexity that had been bogging down the entire telecom industry. We deemed it unacceptable. Telecom has to be as easy as streaming your favorite song on Spotify.
When former Telenor executive Martina Klingvall founded the Swedish MVNO Telness in 2016, the goal was simple — to raise the standards of an industry that had stopped innovating.
Building Europe’s highest-rated operator
We built a fully digital operator from the ground up, automating everything from onboarding to billing. It made Telness the highest-rated mobile operator in Europe — a title we still hold today (4.8 on Trustpilot).
Our customers loved us because they didn’t have to deal with us — it just worked. Behind that simplicity were thousands of user journeys, automated processes, and insights — all distilled into one AI-first tech platform.
From telco to tech company
Then we realized — let’s not keep this to ourselves. We carved out the technology to help other operators worldwide, and that platform became Seamless OS.
We left telecom and became a tech company — powered by some of the world’s best engineers with experience in both telecom and technology, from companies such as Klarna, Tink, and Spotify. And that’s when Telness Tech was born.
The new operating system for telecom
Seamless OS is the world’s first agentic telecom operating system — fully modular and automated, built to replace legacy complexity and vendor sprawl with something that simply works and grows.
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Seamless OS helps existing operators reach new heights — and new ones hit the ground running.
Instead of hiring more project managers and integrating multiple systems, we automate the journeys and processes.
Our platform is live and battle-proven — powering real operators across Europe and North America, while others still sell PowerPoints, re-skinned legacy stacks, or struggle to patch something together themselves.
We don’t know what’s next — but we do know that technology evolves fast. Our unique modular architecture ensures that whatever it is, Seamless OS will never be a limitation for our operators.
Our executive leadership team
Blends deep telecom experience with Silicon Valley–level product, design, and growth ambition.
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Martina Klingvall
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Jonas Cedenwing
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Filip Askviken
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Christina Berggren
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Sebastian Stecki
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Sergio Budkin
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Pablo Noguerol
How we operate
These five principles shape our operations, our mindset, and our mission to disrupt telecom.
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Reject complexity
We build to simplify.
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Resilient by design
We fail, learn, and adapt — fast.
Transparency through honesty
We care deeply — about the industry, our customers, and each other.
Curiosity over comfort
We never stop asking why.
Build with ownership. Bias for action.
We don’t wait — we make things happen.
Built by those who’ve been there
We’re the operators who became technologists — the telecom executives who chose entrepreneurship over legacy, and the engineers who believe telecom should run like modern software companies do.
Telness Tech is led by telecom and tech executives from Klarna, Telenor, Telefónica, GlobalConnect, and leading ad-tech and startup ventures — people who have built operators, scaled SaaS platforms, and engineered the infrastructure behind global brands like Spotify.
All united by one mission: to make telecom joyful again — by challenging convention and removing complexity.
Curious how we do it?
Our team is always open to chat — whether you're exploring or ready to move.
Delve more into Telness Tech
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Martina Klingvall MWC Las Vegas Keynote 2023
Telness Tech's founder, Martina Klingvall took the stage on Mobile World Congress Las Vegas and held one of the most highlighted and appreciated keynotes. Sharing insights, experiences and on the imminent opportunity for digital attacker brands in the B2B Segment
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Telness Tech partners with Lebara to Launch New Mobile Operator in Nigeria
Stockholm, Sweden – November 20, 2024: Telness Tech, a leading telecom technology provider, is partnering with VAS2Nets and Lebara to launch a new Mobile Virtual Network Operator (MVNO) in Nigeria. The initiative will introduce a telecom service aimed at the rapidly growing telecommunications market in Nigeria. The operator will be powered by Telness Tech industry leading software and customer experience, while bringing Lebara, an internationally recognized telecom brand – to an entirely new region and expansive market.
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Telness Tech secures 5M Euro in funding and successfully enters US Market
Stockholm, April 2 – Telness Tech, the full automation software company for the telecommunications industry secures 5 million euro in bridge-funding in the midst of a rapid international expansion. With over 18 mobile operators running Telness Techs full automation platform, the Software company signed multi-year contracts with their first two US clients - much earlier than expected.