Insights

Affordable Mobile Plans OiSTER specializes in offering low-cost prepaid mobile and broadband services, which indicates an opportunity to upsell postpaid plans or premium features to their existing customer base seeking enhanced service options.

Focused Customer Support With a dedicated team in customer service and a customer-centric approach, there is potential to introduce personalized value-added services, loyalty programs, or targeted marketing campaigns to increase customer engagement and retention.

Technological Infrastructure Utilizing a robust tech stack that includes cloud services and security measures suggests readiness for advanced digital solutions, enabling partnership opportunities in app development, digital payments, or enhanced cybersecurity offerings.

Emerging Brand As a budget-friendly player in Denmark with recent leadership appointments, OiSTER is positioned to compete for market share against larger telecom groups, offering potential for collaborative promotions or bundling with complementary services like internet or entertainment.

Growth Potential Despite modest revenue figures, OiSTER’s parent company’s backing and its strategic focus on simplicity and cost-efficiency open avenues for scalable solutions in digital customer acquisition, targeted marketing platforms, or innovative telecom services tailored to budget-conscious consumers.

OiSTER Tech Stack

OiSTER uses 8 technology products and services including Optimizely, Microsoft 365, jQuery UI, and more. Explore OiSTER's tech stack below.

  • Optimizely
    A/B Testing
  • Microsoft 365
    Email
  • jQuery UI
    Javascript Libraries
  • Trustpilot
    Online Review Management
  • reCAPTCHA
    Security
  • HSTS
    Security
  • X-XSS-Protection
    Security
  • Bootstrap
    UI Frameworks

OiSTER's Email Address Formats

OiSTER uses at least 1 format(s):
OiSTER Email FormatsExamplePercentage
First.Last@oister.dkJohn.Doe@oister.dk
47%
F.Last@oister.dkJ.Doe@oister.dk
3%
First.Last@oister.dkJohn.Doe@oister.dk
47%
F.Last@oister.dkJ.Doe@oister.dk
3%

Frequently Asked Questions

Where is OiSTER's headquarters located?

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OiSTER's main headquarters is located at Scandiagade 8, 2450 København SV, DK. The company has employees across 3 continents, including EuropeNorth AmericaOceania.

What is OiSTER's official website and social media links?

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OiSTER's official website is oister.dk and has social profiles on LinkedIn.

What is OiSTER's NAICS code?

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OiSTER's NAICS code is 517 - Telecommunications.

How many employees does OiSTER have currently?

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As of October 2025, OiSTER has approximately 82 employees across 3 continents, including EuropeNorth AmericaOceania. Key team members include Head Of Digital: J. E. B.Head Of It Development & Operations: M. K.Head Of Sales, Crm & Products: N. L.. Explore OiSTER's employee directory with LeadIQ.

What industry does OiSTER belong to?

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OiSTER operates in the Telecommunications industry.

What technology does OiSTER use?

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OiSTER's tech stack includes OptimizelyMicrosoft 365jQuery UITrustpilotreCAPTCHAHSTSX-XSS-ProtectionBootstrap.

What is OiSTER's email format?

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OiSTER's email format typically follows the pattern of First.Last@oister.dk. Find more OiSTER email formats with LeadIQ.
OiSTER

OiSTER

TelecommunicationsDenmark51-200 Employees

OiSTER er et online mobilselskab, der tilbyder billig mobiltelefoni og mobilt bredbånd. OiSTER har eksisteret siden 2008, og er ejet af Hi3G Danmark Aps. Grundlaget for OiSTER har altid været, at det skal være nemt og billigt at være kunde hos OiSTER. Og det er vores ambition at efterleve det i alle touchpoints. 

Arbejde hos OiSTER
Hos OiSTER har vi mange dygtige kolleger fordelt på administration, kundeservice og salg/marketing. Selvom vi har travlt, har vi et godt socialt miljø, som giver os en hel unik kultur.
Læs mere om OiSTER: www.oister.dk

OiSTER is a Danish mobile company offering advanced prepaid subscriptions (mobile and mobile broadband). OiSTER has existed since 2008 and is owned by Hi3g Denmark Aps. The basis for OiSTER is to keep it easy and inexpensive to be an OiSTER customer. And it is our ambition to deliver this within all touchpoints. 

Working at OiSTER
At OiSTER we have many skilled employees in administration, customer service and sales/marketing. Although we are busy, we have a great social environment, which gives us a unique culture. 

Read more about OiSTER at www.oister.dk

Section iconCompany Overview

Headquarters
Scandiagade 8, 2450 København SV, DK
Website
oister.dk
NAICS Code
517 - Telecommunications
Employees
51-200

Section iconFunding & Financials

  • $10M$25M

    OiSTER's revenue is estimated to be in the range of $10M$25M

Section iconFunding & Financials

  • $10M$25M

    OiSTER's revenue is estimated to be in the range of $10M$25M

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