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C5 Alliance's Overview

Total employees118
HeadquartersSt Helier
Founded1999

c5-alliance, now operating as BDO C5 Alliance after its acquisition by BDO in the Channel Islands in 2018, is a prominent technology solutions provider. With offices in Jersey and Guernsey, the company specializes in delivering a comprehensive suite of IT services including strategic consultancy, cloud solutions, managed services, data analytics, and business intelligence. BDO C5 Alliance empowers businesses across various sectors to harness technology for improved efficiency, innovation, and the achievement of their strategic objectives, playing a key role in their digital transformation journeys.

Where is C5 Alliance's Headquarters?

HQ Function

Serves as a key operational hub for BDO C5 Alliance in Jersey, delivering technology solutions, expert consultancy, and managed IT services to a diverse client base in the Channel Islands and internationally.

Notable Features:

Modern office facilities integrated within the BDO Jersey corporate environment, designed to foster collaboration, innovation, and efficient service delivery.

Work Culture:

A dynamic, client-focused, and collaborative work culture that blends the agility and deep tech expertise of C5 Alliance with the established professionalism and global network of BDO. Emphasis is placed on continuous learning and innovation.

HQ Significance:

The Jersey headquarters is strategically important, leveraging the island's status as a leading international finance centre to serve a wide range of industries. It acts as a center of excellence for technology services within BDO Channel Islands.

Values Reflected in HQ: The headquarters reflects BDO's core values of integrity, objectivity, and professional competence, combined with C5 Alliance's heritage of innovation, technical excellence, and client partnership.

Location:

BDO C5 Alliance primarily operates from its offices in Jersey and Guernsey. However, as an integral part of the BDO global network, which spans over 160 countries and territories, it can support clients with international operations. This global affiliation allows BDO C5 Alliance to leverage worldwide expertise, resources, and collaborative project capabilities, extending its service reach far beyond the Channel Islands.

Street Address:

First Floor, Windward House, La Route de la Liberation

City:

St Helier

State/Province:

Jersey

Country:

Channel Islands

C5 Alliance's Global Presence

St Peter Port, Guernsey, Channel Islands

Address: PO Box 194, Bordage House, Le Bordage, St Peter Port, Guernsey, GY1 4BY

To deliver localized technology expertise and support to clients in Guernsey, complementing the Jersey operations and ensuring comprehensive Channel Islands coverage for BDO C5 Alliance services.

Buying Intent Signals for C5 Alliance

Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.

Notable news
Hiring actively
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
Corporate Finance
*Example signal, not calculated in real time

Executive Team of C5 Alliance

As of April 2025, C5 Alliance' leadership includes:

Matthew Corbin - Chief Executive Officer, BDO Jersey (Overseeing BDO C5 Alliance operations in Jersey)
Scott Workman - Director, Technology Advisory, BDO Jersey (Former CEO of C5 Alliance)
Phil Ruelle - Director, Technology, BDO Jersey (Former Chief Digital Officer of C5 Alliance)
Antony Allen - Director, Technology, BDO Jersey (Former CTO of C5 Alliance)
Stuart Richford - Group Managing Director, BDO Guernsey (Overseeing BDO C5 Alliance operations in Guernsey)

Investors of C5 Alliance

C5 Alliance has been backed by several prominent investors over the years, including:

c5-alliance was acquired by BDO in the Channel Islands (BDO Jersey and BDO Guernsey) in 2018. As such, it is now part of the BDO network and is not independently funded by external investors. BDO globally is a network of independent member firms.

Executive New Hires/Exits in the Last 12 Months

Hire0
Exits0

No high-level executive (Director level and above within the core BDO C5 Alliance leadership team) hires or exits have been prominently reported in public sources in the last 12 months. The leadership team, largely integrated from C5 Alliance, appears stable within BDO Channel Islands.

Technology (Tech Stack) used by C5 Alliance

Discover the tools C5 Alliance uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.

C5 Alliance Email Formats and Examples

Following its integration into BDO, email addresses for personnel at BDO C5 Alliance typically follow the standard BDO corporate email format. This usually consists of the first name and last name separated by a dot, followed by '@bdo.je' for Jersey-based staff or '@bdo.gg' for Guernsey-based staff.

firstname.lastname@bdo.je or firstname.lastname@bdo.gg

Format

jane.doe@bdo.je

Example

85%

Success rate

News and media

BDO Jersey15 September 2023

BDO Jersey strengthens technology advisory team (BDO C5) with new senior hire

BDO Jersey announced the appointment of Davinia Bishop as a Senior Manager in its technology advisory team, which forms part of BDO C5. This strategic hire is aimed at enhancing the firm's capabilities in providing expert technology advice and innovative solutions to its diverse clientele....more

BDO Jersey05 July 2023

BDO Jersey Announces 23 Promotions, Including Within Tech (C5) Team

BDO Jersey celebrated a significant round of 23 promotions across its various service lines, notably including advancements within its Technology (C5 Alliance) division. These promotions underscore the firm's continued growth and its commitment to fostering internal talent....more

BDO Jersey (and various news outlets)26 July 2018

BDO in Jersey acquires C5 Alliance Group Limited

BDO in Jersey officially acquired C5 Alliance Group Limited, a leading technology solutions provider in the Channel Islands. This landmark acquisition significantly bolstered BDO's technology advisory and service capabilities, integrating C5's expertise into the BDO network to form BDO C5 Alliance....more

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