Calder Conferences Limited: UK Public Sector Contracts Won & Awards
SME·Leeds·Nationwide (UK)·Main market: Exhibition, fair and congress organisation services
Companies House03702902 ↗
Procedures with an award67 award recordsPublic authorities6named on published awardsAttributable award value£5.0mnet · on 3 of 7 award records · single-supplier, no ceilingsLast 12 months3awards · 2 in the prior 24 months · last 6 Aug 2026Delivery regions3most often Nationwide (UK)
Where they win
4 lot-level observations (3 awarded lots, 75%, plus 1 envelope awards without lot links; pending awards included) · top CPV classes
7995 Exhibition, fair and congress organisation services1 observations · 50% · lots8000 Education and training services1 observations · 50% · envelope awardsAttributable award value£5.0mSum of published VAT-exclusive values on 3 of 7 award records — only awards to this supplier alone, framework / DPS ceilings excluded; the award’s own value, else its contract’s; the five largest make 100%. Not turnover. Largest rows below.
Typical attributable award£19k medianmoderate · n=3
| Largest published awards | Authority | Awarded | Term | Published value |
|---|---|---|---|---|
| Booking Services Venues and Events 2026 | Ofsted | — | — | £5,000,000 † |
| CEFAS26-49 OCPP Maldives – PCA Forum Venue Hire | CENTRE FOR ENVIRONMENT, FISHERIES AND AQUACULTURE SCIENCE | — | 1 mo | £18,568 † |
| Emergency Planning - Accommodation & Travel | Halton Borough Council | — | — | £0 † |
Where they deliver
ITL1 delivery regions on the notice · 6 of 6 awarded procedures publish one · a procedure with several regions counts in each
Nationwide (UK)4 procedures · 67%
Yorkshire and the Humber2 procedures · 33%
North West England1 procedures · 17%
Who they sell to
Authorities named on this supplier’s published awards · ranked by distinct procedures · award records explode on framework and DPS panels
Authority type · official UK type when published, else name/id class, else not classified · by award records (a single panel can dominate)
- Other public body 50% (2 awards)
- Local authority 25% (1 awards)
- Type not classified 25% (1 awards)
| Authority | Procedures | Share | Award records | Last activity |
|---|---|---|---|---|
| Hull City Council | 1 | 16.7% | 2 | 29 Jan 2025 |
| Health Education England | 1 | 16.7% | 1 | 31 May 2023 |
| NHS England | 1 | 16.7% | 1 | 4 Aug 2023 |
| Halton Borough Council | 1 | 16.7% | 1 | 25 Jun 2026 |
| Ofsted | 1 | 16.7% | 1 | 6 Aug 2026 |
| CENTRE FOR ENVIRONMENT, FISHERIES AND AQUACULTURE SCIENCE | 1 | 16.7% | 1 | 23 Mar 2026 |
Share = of the 6 procedures with an award naming this supplier. Last activity = award date, or notice publication when no award date was published.
Recent awards
Latest 7 of 7 award records naming this supplier
| Award / procedure | Authority | Awarded | Award value |
|---|---|---|---|
| Booking Services Venues and Events 2026 | Ofsted | Not published | Not published |
| Emergency Planning - Accommodation & Travel | Halton Borough Council | Not published | Not published |
| CEFAS26-49 OCPP Maldives – PCA Forum Venue Hire | CENTRE FOR ENVIRONMENT, FISHERIES AND AQUACULTURE SCIENCE | Not published | Not published |
| Travel Management | Hull City Council | Not published | Not published |
| Venue Hire Group Accommodation and Supporting Services | Hull City Council | Not published | Not published |
| Venue Management Services Solution | NHS England | Not published | Not published |
| Venue Booking and Management Services | Health Education England | Not published | Not published |
Data coverage & method
- Source: Find a Tender OCDS award and contract releases. An award record is one award × this supplier; a procedure can carry many (panels, call-offs).
- Market observations are awarded lots, or one envelope award when the notice publishes no lot links. Region = delivery ITL1 on the notice, not the supplier’s registered address.
- Authority type: official OCDS UK contracting-authority type when the notice publishes one; otherwise a Tenderline name/id class; otherwise “not classified”. Purchasing hubs with no published type stay unclassified.
- Published value attributable to this supplier alone: £5.0m across single-supplier awards, framework / DPS ceilings excluded. Coverage is partial and the figure is not turnover, so it is not shown as a headline.
- Contract end dates: published on 1 of 7 awards; 0 end within 18 months.
- Never shown: contact details, reliability or payment scores, affiliations, predicted wins.
Identifiers consolidated into this page (6 historical Find a Tender publication identifiers)
Official notices referenced this supplier under these publication identifiers. Alias URLs are not separate pages.
Canonical page id: GB-COH:03702902