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InfoSource Bulgaria Ltd started in 2005 as a BPO service provider in the fields of data processing and information management.

In over 15 years of experience, we have developed the expertise of transferring clients’ business processes to our local dedicated teams.

What InfoSource offers its clients

Data entry outsourcing services: data extraction, categorization (labeling or annotation) and verification

Outsourcing for AI: data labeling for ML, image/video annotation, audio transcription

Outsourcing for eCommerce: catalog management and photoshop services

Media analytics, media intelligence, sentiment analysis and media monitoring

Back-office support services

How InfoSource outshines the competition

Guarantee for high-accuracy and full data deliverables

Flexible, adjustable, scalable and easy to manage teams with client-dedicated team leaders

Intelligent and well-educated remote workers, able to get trained and engaged on short notice

Competitive and transparent pricing tailored to your individual project – cost saving location in Eastern Europe

Reliable and trustworthy partnership with individual approach


18 Ivan Vazov Str., 1000, Sofia, Sofia

Public or Private


Seats or staff



$5 mil. - $10 mil.

  • Consumer Services
  • Digital Marketing
  • Ecommerce
  • Financial Services
  • Insurance
  • IT Services and IT Consulting
  • Legal
  • Media Publishing
  • Recruiting Staffing
  • Retail
  • SaaS
  • Software Tech/IT
  • Telecoms



Nikola Chalev

Year Founded


Countries of fulfillment
  • Bulgaria
  • Admin Support
  • Agency Contract Partner
  • Customer Service
  • Digital & Content Marketing
  • Finance & Accounting
  • Full service BPO
  • Human Resource & Legal
  • IT Services and IT Consulting
  • Office Leasing
  • Seat Leasing BPO
  • Software & Application Development
Contact information

+359 2 963 43 95

InfoSource news, podcast & articles

No news, podcast & articles available for this BPO

InfoSource videos & images

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  • Secure
  • Transparent

About OA

Outsource Accelerator is the trusted source of independent information, advisory and expert implementation of Business Process Outsourcing (BPO).

The #1 outsourcing authority

Outsource Accelerator offers the world’s leading aggregator marketplace for outsourcing. It specifically provides the conduit between world-leading outsourcing suppliers and the businesses – clients – across the globe.

The Outsource Accelerator website has over 5,000 articles, 450+ podcast episodes, and a comprehensive directory with 3,900+ BPO companies… all designed to make it easier for clients to learn about – and engage with – outsourcing.

About Derek Gallimore

Derek Gallimore has been in business for 20 years, outsourcing for over eight years, and has been living in Manila (the heart of global outsourcing) since 2014. Derek is the founder and CEO of Outsource Accelerator, and is regarded as a leading expert on all things outsourcing.

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