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Company Summary

Company Reviews

Onecom is the UK’s leading business telecoms and cloud communications provider managing over a million services for 80,000+ business customers - delivering communication services and unified solutions across fixed-line voice, connectivity, and managed cloud.

Onecom’s customers include Farrow & Ball, Thwaites, Celtic Manor, Laithwaite’s Wine, Yorkshire Building Society and 118 UK Ltd.

Recent awards include Five9 EMEA Innovation Partner of the Year Award, ‘Best Customer Service Award’ at the Mobile News Awards; and it has been named Vodafone Strategic Partner of the Year for the last 13 consecutive years.

Rating Reviews

Rating is calculated based on 1 review and is evolving.

Featured Reviews

Technical Support Engineer
2.9
8 February 2026
Okay start, but tough for growth
Pros: It's a good spot to learn the basics in the telecoms industry. My team in the Southampton office was pretty supportive, especially for new Technical Support Engineer roles. You get decent exposure to different tech stacks.
Cons: Career growth is really tough here. There aren't many clear paths to move up from an entry-level technical role. It feels like you hit a ceiling fast, making it hard to develop beyond your initial scope.
Advice to Management: Create clearer progression paths for technical staff. Invest more in training for internal promotions to show employees they can grow here.
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