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Content Marketing Agency

Acceleris

PR and reputation management agency, now trading as Definition, serving corporate clients, senior executives and entrepreneurs

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About Acceleris

Acceleris was a PR and communications agency that bought Limelight and then combined both firms under a single new brand, Definition. The merged agency handles corporate communications and personal brand work for clients in the UK and abroad, with offices in London and Leeds.

Services

  • Reputation management: helping companies, executives and entrepreneurs shape, promote and protect how they are seen.
  • Corporate communications: media relations and messaging for large organisations.
  • Personal brand work: profile building for senior leaders and business founders.
  • B2B PR: press and publicity for business-to-business firms.
  • B2B social media and SEO: online visibility work run by specialists in those channels.

Clients

The agency works across tech, engineering, legal, education, transport and healthtech. Named clients include EY, the intellectual property firm HGF, construction services company Rhodar, maritime pensions provider Ensign and the Association of Charitable Organisations.

Key facts

  • Offices: London and Leeds
  • Team: around 30 people, including former print and broadcast journalists
  • Current name: Definition, formed from Acceleris and Limelight
  • Recognition: more than 60 awards in the UK and internationally, including European Communications Excellence Awards for issues and reputation management

Profile written by TrustList from the business's own published information, Sep 2026.

Categories & features

Rankings

As of 2026-10-06. Organic ranks only; sponsored placements are never ranks.

What the business tells TrustList

Number of staff
30 people evidence sent

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