Insights

Affordable Mobile Plans OiSTER's focus on providing inexpensive prepaid mobile and broadband services positions it well to attract budget-conscious customers seeking cost-effective telecom solutions, creating opportunities for upselling data or value-added services to enhance customer loyalty.

Digital Engagement With its emphasis on simplicity and strong online presence, OiSTER is primed for targeted digital marketing campaigns and personalized service offerings to increase customer acquisition and retention in the competitive Danish telecom market.

Growing Market Presence Having established itself since 2008 and undergoing strategic leadership appointments, OiSTER’s expanding brand recognition suggests potential for cross-selling other telecom or connectivity services as it aims to capture a larger market share.

Technology Stack Utilizing advanced tools like Optimizely and Trustpilot indicates a commitment to optimizing user experience and reputation management, which can be leveraged to introduce referral programs or loyalty initiatives to boost customer lifetime value.

Target Customer Base With a relatively agile team of 51-200 employees, OiSTER can benefit from tailored enterprise solutions or partner integrations to enhance network capabilities and expand service offerings, providing new sales avenues in both B2C and B2B segments.

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 8 Scandiagade København sv, Hovedstaden 2450 Denmark. 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 SIC code NAICS code?

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OiSTER's SIC code is 4899 - Communications Services, Not Elsewhere Classified NAICS code is 517 - Telecommunications.

How many employees does OiSTER have currently?

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As of February 2026, OiSTER has approximately 86 employees across 3 continents, including EuropeNorth AmericaOceania. Key team members include Cro & Website Optimization Manager: S. P.Head Of Digital: J. E. B.Head Of It Development & Operations: M. K.. 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

TelecommunicationsHovedstaden, Denmark51-200 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
8 Scandiagade København sv, Hovedstaden 2450 Denmark
Website
oister.dk
SIC Code
4899 - Communications Services, Not Elsewhere Classified
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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