DarntonB3 Limited (appointed to Lot 4)

SMEUK · LeedsCompany No. 06617944

DarntonB3 Limited (appointed to Lot 4) is a UK limited company, based in Leeds, incorporated in 2008. Has won 12 UK public-sector contracts worth £9.9m across 10 buyers, primarily East Riding of Yorkshire Council.

⇄ Compare peers ⇩ Export ↗ Share

Active contracts

no new awards in 30d

Contracted (12m)

£2.5m

new

Framework headroom (12m)

—

▼ 100% vs prior 12m

Public buyers

stable this month

Top buyer share

36%

East Riding of Yorkshire Council

Buyer concentration

Each block sized by share of total award value. A dominant block signals dependency on one buyer.

High concentration. Top 3 buyers = 80% of revenue.

East Riding of Yorkshire Council

£3.5m

36%

Ipswich Borough Council

£2.5m

25%

Sheffield City Council

£1.9m

19%

West Northamptonshire Council

£1.7m

17%

Wolverhampton City Council

£158k

Other (5 buyers)

£83k

Contracts won · 12 total · 8 active · 3 expired

Every contract award published under the Procurement Act.

Sort

Title	Buyer	Award type	Value	Awarded	Status
YORconsult3 Consultants Framework Agreement	East Riding of Yorkshire Council	Framework call off	£3.5m ceiling · ~£82k share (÷43)	08 Jan 2025	active
Consultancy Framework - Lotted	Ipswich Borough Council	Shared contract	£2.5m lot total · 44 suppliers	16 Mar 2026	pending
CM124 - YORconsult2	Sheffield City Council	Framework call off	£1.9m ceiling · ~£45k share (÷42)	06 Nov 2018	expired
Design Consultancy Services Framework	West Northamptonshire Council	Shared contract	£1.7m lot total · 21 suppliers	24 Jun 2022	active
CLQ New College Design Team	Wolverhampton City Council	Direct contract	£158k	28 Mar 2023	active
CO0858-01 Architect Services for Council House Building Programme	Wiltshire Council	Direct contract	£72k	28 May 2019	expired
Architectural Services for Market Provision in Coalville	North West Leicestershire District Council	Framework call off	£11k ceiling · ~£11k share	20 May 2019	expired
YORconsult3 Consultants Framework Agreement	East Riding of Yorkshire Council	Shared contract	— lot total · 42 suppliers	—	active
National Framework for Professional Services in Construction and Premises 2024	The Education Alliance	Shared contract	— lot total · 21 suppliers	—	active
Carmarthenshire Construction Professional Services Framework	Carmarthenshire County Council	Shared contract	— lot total · 7 suppliers	—	active
National Framework for Professional Services in Construction and Premises 2024	The Education Alliance	Shared contract	— lot total · 22 suppliers	—	active
Hampton Dene Primary School, Extension to the Language and Communication Centre - appointment of a Multi-Disciplinary Design Team	Herefordshire Council	Direct contract	—	—	active

DarntonB3 Limited (appointed to Lot 4)

Buyer concentration

Contracts won · 12 total · 8 active · 3 expired

Top buyers · by total award value

Award value — last 8 quarters

Category mix — CPV divisions

Geographic spread

Modifications received · scope growth on existing wins

Compliance scorecard

Financial health

Company information

Corporate structure

Companies House data

Peer suppliers

News mentions

Compliance scorecard

Financial health

Company information

Corporate structure

DarntonB3 Limited (appointed to Lot 4)

Companies House data

Why Capita's public-sector share keeps slipping — and who's eating it

The 12 frameworks Capita bid on last year (and lost 8)

Is BPO concentration back? A supplier-risk deep-dive