Insights

Affordable Service Offering OiSTER specializes in providing inexpensive mobile and broadband services through prepaid subscriptions, appealing to cost-conscious consumers and budget-sensitive segments.

Strong Digital Presence The company employs a modern tech stack, including Optimizely and Trustpilot, indicating a focus on digital engagement and online customer experience, which can be leveraged for targeted marketing campaigns.

Expansion Potential With a revenue range of 10M to 25M and recent leadership developments, there is opportunity to scale operations, expand product offerings, or deepen market penetration within Denmark’s competitive telecom landscape.

Customer-Centric Approach OiSTER emphasizes simplicity and ease of use across all customer touchpoints, signaling an openness to enhanced customer support innovations or value-added services to boost loyalty and satisfaction.

Market Differentiation As a budget-friendly brand owned by Hi3G Denmark, OiSTER’s positioning allows strategic sales of complementary services such as mobile broadband, promotional bundles, or upsell opportunities within Denmark’s telecom market.

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

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 December 2025, OiSTER has approximately 83 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

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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