---
title: "National Trust - Clumber Park - Diamond-backed Spider Recovery Project Consultancy Services (A)"
ocid: "ocds-b5fd17-91e972bd-ec6d-47f9-b71c-dd57b928b020"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-91e972bd-ec6d-47f9-b71c-dd57b928b020"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-91e972bd-ec6d-47f9-b71c-dd57b928b020.md"
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source: "Contracts Finder"
current_stage: "Tender"
buyer: "THE NATIONAL TRUST FOR PLACES OF HISTORIC INTEREST OR NATURAL BEAUTY"
published: "2026-07-07"
---

# National Trust - Clumber Park - Diamond-backed Spider Recovery Project Consultancy Services (A)

Buyer: THE NATIONAL TRUST FOR PLACES OF HISTORIC INTEREST OR NATURAL BEAUTY  
Current stage: Tender  
OCID: ocds-b5fd17-91e972bd-ec6d-47f9-b71c-dd57b928b020

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## Summary

The National Trust, operating from Heelis in Swindon, England, has initiated a tender process for consultancy services related to the Diamond-backed Spider Recovery Project at Clumber Park and the Sherwood Forest landscape. This opportunity requires ecological expertise for improving the understanding and management of the critically endangered diamond-backed spider. The contract is under the environmental engineering consultancy services category, inclusive of monitoring and natural resources management services. The project is open for tender until 31st July 2026, and covers areas within the East and West Midlands. The contract period is planned from 10th August 2026 to 1st March 2029, with an overall budget of £35,922.

This tender offers significant growth opportunities for businesses involved in ecological consultancy, particularly those specialising in habitat management and endangered species protection. Small and medium-sized enterprises (SMEs) and voluntary, community, and social enterprises (VCSEs) are encouraged to participate as the open procurement procedure below threshold provides a competitive platform for diverse organisations to engage with a prestigious institution like the National Trust. Companies with capabilities in environmental monitoring and strategic conservation planning would find this tender well-suited to their expertise, especially those with the flexibility to work collaboratively with academic and ecological bodies.

## Notice

The National Trust is seeking suitably qualified ecological consultants to support the recovery of the Critically Endangered Diamond-backed Spider (Thanatus formicinus). The commission is divided into three work packages. This opportunity relates to Package A: spider ecology, monitoring and research across Clumber Park and the Sherwood Forest landscape. The project will improve understanding of the species' ecology, breeding phenology and dispersal, provide habitat management guidance, assess habitat connectivity, and develop a translocation methodology and implementation plan by 2029. Work will be undertaken in collaboration with the National Trust, British Arachnological Society, University of Nottingham and other stakeholders. The project runs from 2026-2029. This opportunity is being conducted on the Proactis Plaza portal. https://supplierlive.proactisp2p.com/ If you would like to be involved, please ensure you have access to your Proactis account and let us know your supplier number so that we can make sure you have access to the tender pack. If you do not have a Proactis account please create one and let us know your supplier number. There is no cost to have a Proactis account.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/5da93aca-a01f-4a7e-9f96-2ede2a1444a2 |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure (below threshold) |
| Tender suitability | SME, VCSE |
| Awardee scale | Not specified |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 7 Jul 2026 |
| Submission deadline | 31 Jul 2026 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 9 Aug 2026 - 1 Mar 2029 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £35,922 |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Active |
| Lots status | Not specified |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | THE NATIONAL TRUST FOR PLACES OF HISTORIC INTEREST OR NATURAL BEAUTY |
| Locality | SWINDON |
| Post town | Swindon |
| Postcode | SN2 2NA |
| Country | England |
| ITL 1 | TLK South West (England) |
| ITL 2 | TLK7 Gloucestershire and Wiltshire |
| ITL 3 | TLK71 Swindon |
| Local authority | Swindon |
| Electoral ward | Mannington and Western |
| Westminster constituency | Swindon South |
| Delivery location | TLF East Midlands (England), TLG West Midlands (England) |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services
- 90 - Sewage, refuse, cleaning and environmental services

### Codes

- 71313000 - Environmental engineering consultancy services
- 90711500 - Environmental monitoring other than for construction
- 90712400 - Natural resources management or conservation strategy planning services
- 90721700 - Endangered species protection services

## Release History

- 7 Jul 2026 at 15:32 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/5da93aca-a01f-4a7e-9f96-2ede2a1444a2

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/5da93aca-a01f-4a7e-9f96-2ede2a1444a2
  7th July 2026 - Opportunity notice on Contracts Finder

## Notice URLs

- https://supplierlive.proactisp2p.com/

## Provenance

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