Company lists · Data refreshed October 2026
Top 25 Network design and engineering firms based in London, United Kingdom
RevenueBase identified 112 company matches for network design and engineering firms associated with London, United Kingdom as of October 2026 and tracks 3,290 professional contacts across them, including 1,787 with verified work emails. Across the United Kingdom, London is the largest hub for this category.
This list covers company matches for network design and engineering firms associated with London, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 18, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest network design and engineering firms based in London, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 796 contacts → | ||||
Exact match “RED Engineering Design, a company of Tractebel, is a global engineering consultancy specialising in the design of complex, mission-critical Data Centre and digital infrastructure…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 2 | 678 contacts → | ||||
Exact match “Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 3 | 459 contacts → | ||||
Exact match “We believe successful businesses are underpinned by quality IT infrastructure.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 4 | 363 contacts → | ||||
Exact match “Maintel is a communications managed services provider.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 5 | 165 contacts → | ||||
Exact match “Rendel celebrated its 185th Anniversary in 2024, making us one of the oldest civil and structural engineering companies in the UK.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 6 | 160 contacts → | ||||
Exact match “Block was created for one reason: to empower people and inspire change through technology.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 7 | 69 contacts → | ||||
Exact match “Insoft Services specializes in elevating IT infrastructure resilience and security, focusing on the critical domains of IT networking, data center infrastructure, cybersecurity…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 8 | 64 contacts → | ||||
Exact match “Sytel Reply is the Reply Company focused on Networks and Security.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 9 | 48 contacts → | ||||
Exact match “Electranet’s mission is to be a preferred partner to the public and private sectors, bringing competitively priced, secure and innovative solutions to the market.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 10 | 30 contacts → | ||||
Exact match “DACC Europe is a leading structured cable and network infrastructure provider established in 1996 in Docklands London, enjoying year on year growth and fully manufacturer…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 11 | 28 contacts → | ||||
Exact match “IDS is a global ICT and security infrastructure design consultancy, specialized in structured cabling design and physical security engineering solutions that meet the highest…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 12 | 27 contacts → | ||||
Exact match “ELTRADE ELECTRICAL LTD is a civil engineering company” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 13 | 23 contacts → | ||||
Exact match “AARMTech is one of the pioneers in the field of Telecommunication and Security system engineering consultancy services, we are leading in the industry since its inception.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 14 | 18 contacts → | ||||
Exact match “Neutrality are a service provider, delivering managed infrastructure services and hybrid connectivity solutions to our global client base.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 15 | 18 contacts → | ||||
Exact match “H3O Digital provides enterprise class technical services for businesses of all sizes.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 16 | 10 contacts → | ||||
Exact match “Mission: The mission of Starfish is to develop technical expertise and share it openly for the benefit of our community.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 17 | 7 contacts → | ||||
Exact match “OUR SERVICES - Electrical, Mechanical and Civil/Structural Design - Specialist Fire, Lift and Escalators, BMS, Telecoms and Networking Capability -Assurance and Testing &…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 18 | 7 contacts → | ||||
Exact match “Who we are - Established in 2004 CSL Integration is a technology solutions Company providing tailored voice, data and video services that add value and improve the way Companies…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match “We have an experienced team of design engineers, project managers, mechanical, electrical, and software engineers.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 20 | 6 contacts → | ||||
Exact match “Techne Engineering Ltd provide a wide range of Engineering and Construction Design services, focusing on quality, safety and constructability.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 21 | 5 contacts → | ||||
Exact match “A team of highly trained network specialists dedicated to engineering the best solutions with state of the art technology.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 22 | 5 contacts → | ||||
Exact match “At Allsort Networks, we are your specialists in network infrastructure.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 23 | 5 contacts → | ||||
Exact match “Welcome to Saxe Group, where innovation meets precision.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 24 | 5 contacts → | ||||
Exact match “Nisa Tech provides ICT and network solutions to various enterprise markets.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
| 25 | 4 contacts → | ||||
Exact match “Charterhouse is your trusted technology partner - designing, provisioning and supporting the technology that underpins your operations.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “network design and engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 112 network design and engineering firms based in London, United Kingdom
See the full list, filter by size, metro and specialty, and access 1,787 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Network design and engineering firms based in London, United Kingdom at a glance
As of Oct 18, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 112 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with London, United Kingdom whose business descriptions match “network design and engineering firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 1,787 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 18, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “network design and engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many network design and engineering firms are there based in London, United Kingdom?
RevenueBase identified 112 company matches for network design and engineering firms associated with London, United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
RED Engineering Design tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United Kingdom has the most network design and engineering firms?
London leads the United Kingdom with 112 company records, followed by Manchester (17) and Leeds (12).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,787 professional contacts with verified work emails tracked across these 112 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 18, 2026.
Ready to reach these companies? Verified emails and direct dials for all 112 network design and engineering firms based in London, United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Network design and engineering firms by geography
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Network design and engineering firms based in Buenos Aires, Argentina
- Network design and engineering firms based in Melbourne, Australia
- Network design and engineering firms based in Sydney, Australia
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Company intelligence · public preview
Top 25 network design and engineering firms based in London, United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 112 matching company records for network design and engineering firms based in London, United Kingdom, with 3,290 tracked contacts and 1,787 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 18, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 network design and engineering firms based in London, United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  RED Engineering Designred-eng.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 796 contacts → |
“RED Engineering Design, a company of Tractebel, is a global engineering consultancy specialising in the design of complex, mission-critical Data Centre and digital infrastructure…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Exponential-Eexponential-e.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 678 contacts → |
“Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Zenzerozenzero.co.ukHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 459 contacts → |
“We believe successful businesses are underpinned by quality IT infrastructure.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Maintelmaintel.co.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 363 contacts → |
“Maintel is a communications managed services provider.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Rendel Limitedrendel-ltd.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 165 contacts → |
“Rendel celebrated its 185th Anniversary in 2024, making us one of the oldest civil and structural engineering companies in the UK.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Block Solutionsblock.co.ukHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 160 contacts → |
“Block was created for one reason: to empower people and inspire change through technology.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Insoft Servicesinsoftservices.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 69 contacts → |
“Insoft Services specializes in elevating IT infrastructure resilience and security, focusing on the critical domains of IT networking, data center infrastructure, cybersecurity…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Sytel Replyreply.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 64 contacts → |
“Sytel Reply is the Reply Company focused on Networks and Security.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Electranet UK Limitedelectranetuk.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 48 contacts → |
“Electranet’s mission is to be a preferred partner to the public and private sectors, bringing competitively priced, secure and innovative solutions to the market.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Dacc Europe Limiteddacceurope.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 30 contacts → |
“DACC Europe is a leading structured cable and network infrastructure provider established in 1996 in Docklands London, enjoying year on year growth and fully manufacturer…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Infrastructure Design Solutionsi-dsltd.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 28 contacts → |
“IDS is a global ICT and security infrastructure design consultancy, specialized in structured cabling design and physical security engineering solutions that meet the highest…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Eltrade Electrical LTDeltrade.co.ukHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 27 contacts → |
“ELTRADE ELECTRICAL LTD is a civil engineering company” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Aarmtech Engineering Pvt. LTDaarmtech.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 23 contacts → |
“AARMTech is one of the pioneers in the field of Telecommunication and Security system engineering consultancy services, we are leading in the industry since its inception.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Neutrality Managed Servicesneutralityms.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 18 contacts → |
“Neutrality are a service provider, delivering managed infrastructure services and hybrid connectivity solutions to our global client base.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  H3o Digitalh3odigital.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 18 contacts → |
“H3O Digital provides enterprise class technical services for businesses of all sizes.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Starfishstarfishlabs.io HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Mission: The mission of Starfish is to develop technical expertise and share it openly for the benefit of our community.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | NBB Railnbbrail.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 7 contacts → |
“OUR SERVICES - Electrical, Mechanical and Civil/Structural Design - Specialist Fire, Lift and Escalators, BMS, Telecoms and Networking Capability -Assurance and Testing &…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  CSL Integration LTDcslintegration.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Who we are - Established in 2004 CSL Integration is a technology solutions Company providing tailored voice, data and video services that add value and improve the way Companies…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Nestling Engineeringdcbird.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“We have an experienced team of design engineers, project managers, mechanical, electrical, and software engineers.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Techne Engineering LTDtechne-engineering.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Techne Engineering Ltd provide a wide range of Engineering and Construction Design services, focusing on quality, safety and constructability.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Enable Network Servicesenable.networkHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“A team of highly trained network specialists dedicated to engineering the best solutions with state of the art technology.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Allsort Networks LTDallsortnetworks.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“At Allsort Networks, we are your specialists in network infrastructure.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Saxe Groupsaxegroup.co HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 5 contacts → |
“Welcome to Saxe Group, where innovation meets precision.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Nisatecnisatec.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Nisa Tech provides ICT and network solutions to various enterprise markets.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 4 contacts → |
“Charterhouse is your trusted technology partner - designing, provisioning and supporting the technology that underpins your operations.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 112 company matches
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Network design and engineering firms: dataset insights
October 18, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
112 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 112 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 18, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for network design and engineering firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many network design and engineering firms did RevenueBase find based in London, United Kingdom?
The saved snapshot records 112 matching company records, 3,290 tracked contacts and 1,787 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 18, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Network design and engineering firms by geography
- Network design and engineering firms based in Buenos Aires, Argentina
- Network design and engineering firms based in Melbourne, Australia
- Network design and engineering firms based in Sydney, Australia
- Network design and engineering firms based in Campinas, Brazil
- Network design and engineering firms based in Curitiba, Brazil
- Network design and engineering firms based in Rio De Janeiro, Brazil
- Network design and engineering firms based in Sao Paulo, Brazil
- Network design and engineering firms based in Calgary, Canada
- Network design and engineering firms based in Edmonton, Canada
- Network design and engineering firms based in Mississauga, Canada
- Network design and engineering firms based in Montreal, Canada
- Network design and engineering firms based in Toronto, Canada
Cite this list
RevenueBase Data Team. Top 25 network design and engineering firms based in London, United Kingdom. Snapshot: October 18, 2026. https://revenuebase.ai/companies/network-design-and-engineering-firms/united-kingdom/london.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Network design and engineering firms based in Buenos Aires, Argentina
- Network design and engineering firms based in Melbourne, Australia
- Network design and engineering firms based in Sydney, Australia
- Network design and engineering firms based in Campinas, Brazil
- Network design and engineering firms based in Curitiba, Brazil
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Company intelligence · public preview
Top 25 network design and engineering firms based in London, United Kingdom
RevenueBase records 112 matching company records for network design and engineering firms based in London, United Kingdom, with 3,290 tracked contacts and 1,787 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 18, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 network design and engineering firms based in London, United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | RED Engineering Designred-eng.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 796 contacts → |
“RED Engineering Design, a company of Tractebel, is a global engineering consultancy specialising in the design of complex, mission-critical Data Centre and digital infrastructure…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Exponential-Eexponential-e.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 678 contacts → |
“Innovation is at the core of Exponential-e, and has been since our inception in 2002.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Zenzerozenzero.co.uk HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 459 contacts → |
“We believe successful businesses are underpinned by quality IT infrastructure.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Maintelmaintel.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 363 contacts → |
“Maintel is a communications managed services provider.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Rendel Limitedrendel-ltd.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 165 contacts → |
“Rendel celebrated its 185th Anniversary in 2024, making us one of the oldest civil and structural engineering companies in the UK.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Block Solutionsblock.co.uk HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 160 contacts → |
“Block was created for one reason: to empower people and inspire change through technology.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Insoft Servicesinsoftservices.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 69 contacts → |
“Insoft Services specializes in elevating IT infrastructure resilience and security, focusing on the critical domains of IT networking, data center infrastructure, cybersecurity…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Sytel Replyreply.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 64 contacts → |
“Sytel Reply is the Reply Company focused on Networks and Security.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Electranet UK Limitedelectranetuk.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 48 contacts → |
“Electranet’s mission is to be a preferred partner to the public and private sectors, bringing competitively priced, secure and innovative solutions to the market.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Dacc Europe Limiteddacceurope.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 30 contacts → |
“DACC Europe is a leading structured cable and network infrastructure provider established in 1996 in Docklands London, enjoying year on year growth and fully manufacturer…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Infrastructure Design Solutionsi-dsltd.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 28 contacts → |
“IDS is a global ICT and security infrastructure design consultancy, specialized in structured cabling design and physical security engineering solutions that meet the highest…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Eltrade Electrical LTDeltrade.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 27 contacts → |
“ELTRADE ELECTRICAL LTD is a civil engineering company” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Aarmtech Engineering Pvt. LTDaarmtech.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 23 contacts → |
“AARMTech is one of the pioneers in the field of Telecommunication and Security system engineering consultancy services, we are leading in the industry since its inception.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Neutrality Managed Servicesneutralityms.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 18 contacts → |
“Neutrality are a service provider, delivering managed infrastructure services and hybrid connectivity solutions to our global client base.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | H3o Digitalh3odigital.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 18 contacts → |
“H3O Digital provides enterprise class technical services for businesses of all sizes.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Starfishstarfishlabs.io HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Mission: The mission of Starfish is to develop technical expertise and share it openly for the benefit of our community.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | NBB Railnbbrail.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 7 contacts → |
“OUR SERVICES - Electrical, Mechanical and Civil/Structural Design - Specialist Fire, Lift and Escalators, BMS, Telecoms and Networking Capability -Assurance and Testing &…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | CSL Integration LTDcslintegration.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Who we are - Established in 2004 CSL Integration is a technology solutions Company providing tailored voice, data and video services that add value and improve the way Companies…” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Nestling Engineeringdcbird.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“We have an experienced team of design engineers, project managers, mechanical, electrical, and software engineers.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Techne Engineering LTDtechne-engineering.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Techne Engineering Ltd provide a wide range of Engineering and Construction Design services, focusing on quality, safety and constructability.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Enable Network Servicesenable.network HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“A team of highly trained network specialists dedicated to engineering the best solutions with state of the art technology.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Allsort Networks LTDallsortnetworks.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“At Allsort Networks, we are your specialists in network infrastructure.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Saxe Groupsaxegroup.co HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 5 contacts → |
“Welcome to Saxe Group, where innovation meets precision.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Nisatecnisatec.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Nisa Tech provides ICT and network solutions to various enterprise markets.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 4 contacts → |
“Charterhouse is your trusted technology partner - designing, provisioning and supporting the technology that underpins your operations.” Recorded description excerpt · October 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 112 company matches
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Network design and engineering firms: dataset insights
October 18, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
112 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 112 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 18, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for network design and engineering firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many network design and engineering firms did RevenueBase find based in London, United Kingdom?
The saved snapshot records 112 matching company records, 3,290 tracked contacts and 1,787 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 18, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 network design and engineering firms based in London, United Kingdom. Snapshot: October 18, 2026. https://revenuebase.ai/companies/network-design-and-engineering-firms/united-kingdom/london.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
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- Network design and engineering firms based in Buenos Aires, Argentina
- Network design and engineering firms based in Melbourne, Australia
- Network design and engineering firms based in Sydney, Australia
- Network design and engineering firms based in Campinas, Brazil
- Network design and engineering firms based in Curitiba, Brazil
- Network design and engineering firms based in Rio De Janeiro, Brazil