PUBLIC-CONTRACT SUPPLIER PROFILE

TETRA TECH LIMITED

Companies House 01959704 · Active. Observed evidence is kept separate from ownership, risk and renewal inferences.

Published notices139 Jan 2025 to 7 Oct 2026
Distinct buyers9published buyer labels
Disclosed GBP£1.5bnnotice fields, not revenue
End-date leads4next 24 months · verify
REGISTERED IDENTITY

TETRA TECH LIMITED

Company number
01959704
Status
Active
Incorporated
15 Nov 1985
Company type
Private Limited Company
Registered office
3 SOVEREIGN SQUARE, SOVEREIGN STREET, LEEDS
SIC codes
71129 - Other engineering activities
Accounts last made up
29 Sept 2024
Next accounts due
30 Jun 2026
LEI
No exact held link
LEI registration
Not available
Check the current register ↗
PUBLISHED SUPPLIER ALIASES

5 labels

Names are retained exactly as published and are not treated as separate legal entities.

  1. Tetra Tech Limited7 notices · latest 30 Sept 2025
  2. TETRA TECH LIMITED3 notices · latest 3 Sept 2026
  3. Tectra Tech Limited1 notices · latest 27 Mar 2025
  4. Tetra Tech1 notices · latest 7 Oct 2026
  5. TetraTech Ltd1 notices · latest 14 Feb 2025
SUPPLIER EVIDENCE GRAPH

What is linked—and how certain is the link?

Every relationship carries its source, date and match method. Exact identifier edges are observed; name-derived ownership or group paths remain inferred.

ObservedInferred · verifyNo combined risk score
OBSERVED · identityExact / sourced

Published supplier identifier → Companies House 01959704

TETRA TECH LIMITED

SourceCompanies House companies linked to contracts or charities ↗Date25 Jul 2026Method

Exact GB-COH company number published on a Contracts Finder supplier record and resolved to the same register number.

CORPORATE GROUP / OWNERSHIPNot established

No exact corporate-parent edge established

The exact identity projection does not contain a publishable parent edge for this supplier. Absence is not evidence of independence.

SourceCompanies House exact identity ↗Date25 Jul 2026Method

Checked exact Companies House identity, held LEI identity where present and the Who Owns This Brand name candidate; no exact parent edge returned.

Continue at Who Owns This Brand ↗
FUNDING ROUNDSCoverage gap

No exact verified funding record linked

The held funding directory did not return a verified exact-company match. That does not prove the company has never raised capital.

SUPPLIER RISK & RENEWAL SIGNALS

Evidence first. Interpretation second.

These inputs help prioritise research; they do not rate supplier quality, solvency, integrity or future award prospects.

OBSERVED

Published and registered facts

OBSERVED EVIDENCE

R2 register status: Active

TETRA TECH LIMITED · incorporated 15/11/1985. The R2 record excludes officers, PSCs, addresses and contact data.

SourceCompanyBeacon Companies House organisation projection ↗Date1 Aug 2026Method

Exact Companies House number 01959704 resolved through the approved 5.7-million-record R2 projection.

OBSERVED EVIDENCE

4 published contract end dates in the next 24 months

4 fall within 12 months. End dates do not prove a reprocurement or renewal.

SourceContracts Finder daily award notices ↗Date12 Oct 2026Method

Exact supplier company number 01959704; date window applied to published contract_end fields.

INFERRED

Derived review signals

INFERRED · REVIEW SIGNAL

23% of linked notices name the leading buyer

Ministry of Defence appears on 3 of 13 linked notices. This is notice concentration, not revenue dependency.

SourceContracts Finder daily award notices ↗Date12 Oct 2026Method

Derived share = leading buyer notice count ÷ all exact-company-linked notices; values and contract delivery are not used.

INFERRED · REVIEW SIGNAL

4 near-term renewal research leads

A published end date is used only to prioritise source checks. It does not predict buyer intent, supplier retention or a future tender.

SourceContracts Finder daily award notices ↗Date12 Oct 2026Method

Derived from published contract end dates within 12 and 24 months of the current date.

No supplier risk score: Observed records and inferred review signals are never combined into a supplier risk score. Missing evidence is not a clean bill of health, proof of independence or proof that no funding or ownership relationship exists.

REGIONAL CONTRACT FOOTPRINT

Where the notices say delivery happens

These are award-notice delivery fields, not headquarters, workforce location or measured local economic impact. ONS population is neutral regional context.

Not stated10 notices
Buyers
7
Disclosed GBP
£1.5bn
ONS population
Not joined
SourceContracts Finder daily award notices ↗Date12 Oct 2026Method

Exact supplier company number 01959704; grouped by the delivery region published on each award notice. This is not supplier-headquarters geography.

Scotland1 notices
Buyers
1
Disclosed GBP
£596k
ONS population
Not joined
SourceContracts Finder daily award notices ↗Date12 Oct 2026Method

Exact supplier company number 01959704; grouped by the delivery region published on each award notice. This is not supplier-headquarters geography.

London1 notices
Buyers
1
Disclosed GBP
£500k
ONS population
8,799,728 (2021)
SourceContracts Finder daily award notices ↗Date12 Oct 2026Method

Exact supplier company number 01959704; grouped by the delivery region published on each award notice. This is not supplier-headquarters geography.

ONS contextUsual residents ↗2021

ONS Census population for London (E12000007); context only, not attributed economic impact.

East Midlands1 notices
Buyers
1
Disclosed GBP
£84k
ONS population
4,880,054 (2021)
SourceContracts Finder daily award notices ↗Date12 Oct 2026Method

Exact supplier company number 01959704; grouped by the delivery region published on each award notice. This is not supplier-headquarters geography.

ONS contextUsual residents ↗2021

ONS Census population for East Midlands (E12000004); context only, not attributed economic impact.

PUBLISHED END-DATE EVIDENCE

Contracts approaching their stated end date

Showing 4 of 4 records ending within 24 months. This is a research queue, not a renewal forecast.

Published end date31 Mar 202712-month window

ENQ1363 - A52 Spondon Interchange Support

DERBY CITY COUNCIL

SourceContracts Finder daily award notices ↗Date3 Sept 2026Method

Exact supplier company number 01959704; contract end date copied from the published award notice.

Published end date31 Mar 202712-month window

TD2367 - Mobility Programme Traffic Signal Support

DERBY CITY COUNCIL

SourceContracts Finder daily award notices ↗Date8 Apr 2026Method

Exact supplier company number 01959704; contract end date copied from the published award notice.

Published end date15 Aug 202712-month window

Transport study

Bassetlaw District Council

SourceContracts Finder daily award notices ↗Date7 Oct 2026Method

Exact supplier company number 01959704; contract end date copied from the published award notice.

Published end date31 Aug 202712-month window

664_25 Consultancy Services

Espo

SourceContracts Finder daily award notices ↗Date20 Nov 2025Method

Exact supplier company number 01959704; contract end date copied from the published award notice.

BUYER HISTORY

Authorities buying from this supplier

SECTOR HISTORY

What the notices cover

CONTRACT EVIDENCE

Latest published notices

Open the permanent evidence page, then verify material facts at the official source.

7 Oct 2026 · East MidlandsTransport studyBassetlaw District Council · Business and management consultancy and related services£84,0003 Sept 2026 · region not statedENQ1363 - A52 Spondon Interchange SupportDERBY CITY COUNCIL · Construction work£60,0008 Apr 2026 · region not statedTD2367 - Mobility Programme Traffic Signal SupportDERBY CITY COUNCIL · Architectural, construction, engineering and inspection services£240,00020 Nov 2025 · region not stated664_25 Consultancy ServicesEspo · Financial consultancy, financial transaction processing and clearing-house services£320,000,00030 Sept 2025 · region not statedProvision of TSCoWGOVERNMENT PROPERTY AGENCY · Consultative engineering and construction services£239,10030 Sept 2025 · region not statedFusion21 Construction Consultancy Services FrameworkFusion21 Members Consortium · Architectural, construction, engineering and inspection services£175,000,00031 Jul 2025 · region not statedNHS SBS BUILDING SAFETY AND FIRE COMPLIANCE FRAMEWORKN H S Shared Business Services · Health and safety services£200,000,00021 Jul 2025 · LondonFire Risk Assessment and Fire StrategiesWestminster City Council · Fire-prevention services£500,00017 Jun 2025 · region not statedFusion21 Building Safety & Compliance Framework - CF Award NoticeFusion21 Members Consortium · Building installation work£800,000,00030 May 2025 · region not statedTSP For Ammunition Processing Buildings RIBA 3-4Ministry of Defence · Technical support services£1,925,20927 Mar 2025 · ScotlandDIOMPPN RM CONDOR TSP RIBA 3 ( INC OPTION RIBA 4)Ministry of Defence · Technical support services£596,00714 Feb 2025 · region not statedRMEC Package 3 TSP RIBA 1-2 CANMinistry of Defence · Technical support services£394,4469 Jan 2025 · region not statedRaven Hotel - Surveys / Professional ServicesWychavon District Council · Building consultancy services£41,170
PROVENANCE

Source dates and licences

Charity Commission public registerOpen Government Licence v3.0Imported 25 Jul 2026Companies House companies linked to contracts or charitiesCompanies House free company data product termsImported 25 Jul 2026Contracts Finder daily award noticesOpen Government Licence v3.0Imported 13 Oct 2026

Notice values may be framework ceilings, amendments or multi-supplier totals. They are not verified revenue, payment, delivery quality, profitability or proof of wrongdoing.