National Grid plc is a British multinational electricity and gas utility company and one of the largest investor-owned utility companies globally. It owns and operates electricity and natural gas transmission networks in the United Kingdom and northeastern United States, including New York and Massachusetts. The company generates revenue through transmission infrastructure operations and electricity and gas production and supply. It holds primary listing on the London Stock Exchange as an FTSE 100 constituent and secondary listing via American depositary receipts on the New York Stock Exchange. Signal Plug searches live against nationalgrid.com's mail server to find and verify email addresses for any National Grid plc employee.
Signal Plug searches live against nationalgrid.com's mail server — not a static database. Get a verified email for any National Grid plc employee with confidence score in under 2 seconds.
94% accuracy · No credit card required · 10 free searches/month
National Grid plc is a British multinational electricity and gas utility company and one of the largest investor-owned utility companies globally. It owns and operates electricity and natural gas transmission networks in the United Kingdom and northeastern United States, including New York and Massachusetts. The company generates revenue through transmission infrastructure operations and electricity and gas production and supply. It holds primary listing on the London Stock Exchange as an FTSE 100 constituent and secondary listing via American depositary receipts on the New York Stock Exchange.
Competitive Advantage
National Grid holds dual stock exchange listings (London Stock Exchange primary, NYSE secondary via ADRs) reflecting its UK-US operational footprint. The company is a constituent of the FTSE 100 Index. National Grid is a member of both ENTSO-E and ENTSO-G, the European network organizations for electricity and gas transmission system operators.
The most commonly verified format at National Grid plc:
Medium ConfidenceSignal Plug tests all common patterns against National Grid plc's live mail server and returns whichever passes the SMTP check.
Run a live search for National Grid plc →Data-driven signals to help you prospect National Grid plc effectively.
Energy sector investors and infrastructure funds target National Grid as a stable, regulated utility play. Government energy policy bodies and regional transmission organizations like ISO New England and ENTSO-E engage with National Grid on grid management and energy transition initiatives.
Primary Contact
Institutional investors
Tuesday–Thursday, 9am–11am
Signal Plug performs live SMTP verification against nationalgrid.com's mail server — not a static scraped database — which means results reflect the real, current state of National Grid plc's email infrastructure. Here's how to run a lookup:
Create a free account
Sign up at Signal Plug in under 30 seconds. No credit card required. The Free plan includes 10 searches per month so you can test the tool with real National Grid plc contacts before upgrading.
Enter the contact's name
Type the first and last name of the National Grid plc employee you want to reach. Signal Plug handles all seniority levels, from C-suite to individual contributors.
Enter the domain
Use nationalgrid.com. Signal Plug tests all common naming patterns automatically and returns only the format that passes the SMTP check.
Get a verified result
Signal Plug returns an email address with a confidence score (0–100) and deliverability status (Valid, Risky, or Catch-all) within 2 seconds. The confidence score tells you how reliable the result is before you use it.
Export and use
One-click CSV export lets you bring National Grid plc contacts into Salesforce, HubSpot, Outreach, Lemlist, or any other tool in your stack. Growth and Scale plan users can run bulk lookups across an entire list of National Grid plc names in a single batch.
Whether you're running outbound sales, recruiting, or building a partnership list, these are the roles most frequently contacted at Utilities like National Grid plc.
Based on National Grid plc's profile, the highest-value contacts for outbound are:
Signal Plug works for any role at any seniority level at nationalgrid.com. If you have a name and the domain, you can find a verified email.
How well National Grid plc fits a typical B2B outbound pipeline, based on available signals.
Moderate Fit
Funnel Fit Score
Most email finder tools pull from static databases of scraped email addresses. These databases go stale as people change jobs and companies update their email infrastructure. Signal Plug takes a different approach: every search performs a live check against nationalgrid.com's mail server using SMTP verification. This means results reflect the current state of National Grid plc's email system — not a cached result from months or years ago.
Signal Plug enriches every result with supporting data: a confidence score (0–100), deliverability status (Valid, Risky, or Catch-all), job title where available, and LinkedIn profile URL. This context helps you prioritize which National Grid plc contacts to email first and personalize your outreach before you hit send. Plans start at $29/month for 500 searches — no annual contracts or seat fees.
Signal Plug performs a live SMTP check against nationalgrid.com's mail server for every query — not a static database lookup. Our platform-wide accuracy rate is 94%. Each result comes with a confidence score (0–100) so you can gauge reliability before using the address.
Free plan: 10 searches. Starter ($29/mo): 500. Growth ($149/mo): 2,000. Scale ($299/mo): 5,000. No company-specific caps.
No. Signal Plug generates and verifies emails in real time via SMTP checks — no static database of National Grid plc employee emails is maintained.
Yes. Growth and Scale plan users can upload a CSV of names and run bulk lookups against nationalgrid.com in a single batch.
London, England.
United Kingdom and Northeastern United States (New York, Massachusetts).
Ownership and operation of electricity and natural gas transmission networks.
Primary listing on London Stock Exchange (FTSE 100), secondary listing on NYSE via ADRs.
Signal Plug searches in real time against nationalgrid.com's mail server to find and verify email addresses for National Grid plc employees. Enter a name, enter the domain, get a verified result with a confidence score in under 2 seconds.
Start finding emails free →10 free searches · No credit card required · Upgrade from $29/month