Nasstar

UK managed IT services provider and Microsoft partner: cloud, secure networking, cybersecurity, and data/AI. HQ Wakefield, ~700-1000 staff across the UK, Romania, and Malaysia. PE-backed.

Services Managed IT Services / Cloud / MSP
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Wakefield, West Yorkshire, UK (UK-focused; hybrid/remote roles) HQ
201-1000 company size
1999 founded

What is Nasstar?

Nasstar is a UK managed IT services provider (MSP) and Microsoft partner that runs, secures, and modernizes technology for mid-market and public-sector organizations so their in-house teams do not have to. Its work spans cloud (largely Microsoft and Azure), the modern or digital workplace (Microsoft 365, collaboration, endpoint), secure networking, cybersecurity, and data and AI, all wrapped in 24/7 managed support, monitoring, and a UK service desk. Customers include organizations in sectors like public transport, healthcare, and government that outsource day-to-day IT operations and transformation projects to Nasstar. The current Nasstar Group was formed when GCI acquired the AIM-listed Nasstar plc around 2019 to 2020, and the combined managed-services business rebranded to Nasstar in 2021. It is headquartered in Wakefield, West Yorkshire, and employs roughly 700 to 1,000 people, primarily in the UK with delivery capability in Romania and Malaysia. Nasstar is privately held and private-equity backed: Mayfair Equity Partners is the majority owner and Arcmont Asset Management holds a minority stake. Chris Halbard became CEO in 2026 (previously CEO of Foundever, with senior roles at DXC Technology, Accenture, and BT Global Services), succeeding Paul Cosgrave; David Senior is CFO.

Mission & values

Take the complexity out of enterprise technology by running, securing, and modernizing IT for organizations through managed cloud, workplace, networking, and security services.

Qualifications

Nasstar hires the roles a managed service provider runs on. On the technical side: cloud and infrastructure engineers (Microsoft/Azure, virtualization, networking), modern workplace and Microsoft 365 specialists, cybersecurity (SOC analysts, security engineers, GRC), service desk and support engineers across tiers, data and AI engineers, and solution and technical architects. On the delivery and commercial side: project and programme managers, service delivery and account managers, presales and solution consultants, plus sales and corporate functions (finance, HR, marketing). Application flow lives at nasstar.com/careers. The company is UK-focused, so most roles require UK work authorization and are based in the UK; many technical and support roles are remote or hybrid within the UK rather than fully office-bound, while some delivery roles sit in its Romania or Malaysia operations. Microsoft certifications (Azure, security, Microsoft 365) and hands-on MSP or enterprise-IT experience are strong signals. Public-sector work can carry security-clearance or baseline-check requirements. Check each posting for location, remote eligibility, and clearance.

Leadership

C

Chris Halbard

Chief Executive Officer

CEO of Nasstar from 2026, succeeding Paul Cosgrave. Previously CEO of Foundever, with senior C-suite roles at DXC Technology, Accenture, Synchronoss, and BT Global Services.

D

David Senior

Chief Financial Officer

CFO of Nasstar Group, leading the finance function of the UK managed service provider.

Hiring process

  1. 1

    Apply at nasstar.com careers

    Browse cloud, security, modern workplace, service desk, data/AI, project delivery, and commercial roles and submit through the Nasstar careers page. Postings state location, remote eligibility, and any clearance needs.

  2. 2

    Recruiter screen

    Confirms role fit, level, UK work authorization, remote/hybrid vs office expectations, any public-sector clearance requirement, and pay.

    About 7 days

  3. 3

    Technical or role-specific interview

    Engineering/security: technical questions and scenarios (Azure, networking, security). Service desk: troubleshooting. Delivery/commercial: a scenario or case.

    About 10 days

  4. 4

    Team or hiring-manager interview

    Deeper conversation on experience, ways of working in a managed-services environment, and fit.

    About 7 days

  5. 5

    Offer

    Offer in GBP aligned to role and level, with any required background or security checks for public-sector work.

    About 7 days

Funding

Investors
Mayfair Equity Partners (majority) Arcmont Asset Management (minority)

Awards & recognition

  • One of the UK's larger managed service providers and a Microsoft partner · 2026

    Nasstar

  • Nasstar Group formed from the GCI / Nasstar plc merger, rebranded to Nasstar · 2021

    Nasstar

Company information

  • Industry: Managed IT Services / Cloud / MSP
  • Location: Wakefield, West Yorkshire, UK (UK-focused; hybrid/remote roles)
  • Founded: 1999
  • Company size: 201-1000
  • Website: www.nasstar.com ↗
  • LinkedIn: Company page ↗

Frequently asked questions

What does Nasstar do?
Nasstar is a UK managed IT services provider (MSP) and Microsoft partner. It runs, secures, and modernizes technology for mid-market and public-sector organizations: cloud (mainly Microsoft/Azure), modern workplace, secure networking, cybersecurity, data and AI, and 24/7 managed support.
Who owns and runs Nasstar?
It is privately held and private-equity backed, with Mayfair Equity Partners as majority owner and Arcmont Asset Management holding a minority stake. Chris Halbard became CEO in 2026, succeeding Paul Cosgrave; David Senior is CFO. HQ is in Wakefield, West Yorkshire.
Are Nasstar jobs remote?
Nasstar is UK-focused, so most roles require UK work authorization and are UK-based. Many technical and support roles are remote or hybrid within the UK rather than fully office-bound; some delivery roles sit in its Romania or Malaysia operations. Check each posting.
What roles does Nasstar hire?
Cloud and infrastructure engineers, Microsoft 365 and modern workplace specialists, cybersecurity (SOC, security engineering, GRC), service desk and support engineers, data and AI engineers, solution and technical architects, project and delivery managers, presales consultants, and corporate functions.
How big is Nasstar?
Roughly 700 to 1,000 employees, primarily in the UK with delivery capability in Romania and Malaysia. The current Nasstar Group was formed when GCI acquired the AIM-listed Nasstar plc around 2019 to 2020 and rebranded to Nasstar in 2021.

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