Company Directory / Construction

Tideway London logo

PrivateCompanyConstructionLondon Bridge, London, United Kingdom

Tideway London

Tideway London, operating as Bazalgette Tunnel Limited, is an independent, privately financed company established in 2015. It is responsible for the Thames Tideway Tunnel, a…

Founded
-
not listed
Staff
251-500
286 on LinkedIn
Followers
45k
on LinkedIn
Funding
$330M
as listed, USD

Tideway's Super Sewer is upgrading London's infrastructure to cope with demands well into the 22nd century and reconnecting the city with the iconic River Thames. The Thames Tideway Tunnel is a 25 kilometre interception, storage and transfer tunnel running up to 65 metres below the river. Starting in west London, the main tunnel generally follows the route of the River Thames to Limehouse, where it then continues north-east to Abbey Mills Pumping Station near Stratford. There it will be connected to the Lee… Read all

Tideway's Super Sewer is upgrading London's infrastructure to cope with demands well into the 22nd century and reconnecting the city with the iconic River Thames. The Thames Tideway Tunnel is a 25 kilometre interception, storage and transfer tunnel running up to 65 metres below the river. Starting in west London, the main tunnel generally follows the route of the River Thames to Limehouse, where it then continues north-east to Abbey Mills Pumping Station near Stratford. There it will be connected to the Lee Tunnel, which will transfer the sewage to Beckton Sewage Treatment Works. Overflows of untreated sewage into the River Thames add up to tens of millions of tonnes every year. London's sewerage system relies on an integrated network of combined sewer overflows (CSOs). At the time it was built, the CSOs would release flows through discharge points along the river during heavy storms. Originally, this would happen once or twice a year, it now happens on a weekly basis and no longer requires a storm to trigger overflows. By intercepting the sewage before it enters the river, the Thames Tideway Tunnel will help prevent the River Thames from being polluted with untreated sewage which can stay in the river for up to three months before the ebb and flow of the tide finally takes it out to sea. For more information, visit our website www.tideway.london Tideway Inclusive Recruitment statement: We are one of The Times Top 50 Employers for Women, a Stonewall Diversity Champion, a proud signatory of the ‘Ban the Box’ campaign, and Disability Confident Committed Employer. We pride ourselves on providing employment for disabled employees, providing support and adjustments during the recruitment process, and wherever needed in the working environment. We offer a guaranteed interview scheme for suitably qualified disabled applicants.

Set against six million companies

Size

1-1011-5051-100101-250251-500501-10001k-5k5k-10k10k+

251-500 people: larger than 92% of companies with a size listed. 286 people list it on LinkedIn.

Age

19002026

Founding year not listed.

Reach

No web traffic ranking listed. 44,541 followers on LinkedIn.

What it does

Waste water servicesengineeringcivil engineeringinfrastructure

What it is known for

waste water servicesengineeringcivil engineeringinfrastructurelondon sewer systemenvironmental systems operationsustainabilityproject managementwater pollution preventionenvironmental systems designsystem integrationsewage overflow preventionpublic health infrastructureurban water management systemsenvironmental systems optimizationurban water management

What its website runs on

Apple Business ManagerCloudFlare CDNCloudflare DNSApple School ManagerMicrosoft Email ProvidersMicrosoft Exchange OnlineOutlookMicrosoft ExchangeMicrosoft 365Microsoft 365 Apps & ServicesDocuSignGlobalSignCloudFlareGoDaddy DomainsGoDaddy HostingAmazon AWSNetnames CedelProofpoint

Funding, as listed

$330M raised in total

  • LatestDebt Financing, Jul 2025
  • Latest amountUSD 330,000,000

What the source datasets report. We have not watched these rounds ourselves, and do not hold this company in the startups database.

Annual revenue$174M
NAICS221320, 237110

Every detail we hold

Everything the source datasets list about Tideway London, field by field. Contact details are held but never shown.

The company

Name
Tideway London
Type
Company
Status
Private
Industry
Construction
Specialities
Waste water services, engineering, civil engineering, infrastructure

Where

City
London Bridge
Region
London
Country
United Kingdom

Size and reach

Staff band
251-500
People on LinkedIn
286
LinkedIn followers
44,541
Annual revenue
$174M

Funding, as listed

Total
$330,000,000 USD
Latest round
Debt Financing
Latest round date
Jul 2025
Latest amount
330,000,000 USD

Classification

NAICS
221320, 237110
SIC
1623
Keywords
16 listed, shown above
Technologies
18 detected, shown above

About this record

Sources
LinkedIn, Apollo
Last imported
Sept 2026

Companies like it

Construction in United Kingdom.

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From the company datasets we hold (Crunchbase, LinkedIn and Apollo listings), as listed there; 372,993 companies in United Kingdom and 5,926,251 in all. We hold no contact details for public display. Correct this, or ask for it to be removed.