OSIC FTSE 100 & S&P 500 OSINT baseline

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Centrica Energy & Utilities

FTSE 100 constituent (CNA)

Overview

Centrica operates in the Energy & Utilities sector. Companies House records company number 03033654 (incorporated 1995-03-16, status Active), with SIC codes covering electricity production, electricity distribution, gas manufacture, and gas distribution; no persons with significant control are on record. The primary domain, centrica.com, spans 201 observed subdomains, including api.lead-tool.centrica.com and ws.dev.forge.centrica.com. A crawl of www.centrica.com fetched one page, no internal or external links, no title recovered. TLS issued by Google Trust Services; HSTS enabled; no Content-Security-Policy header. Hosting is attributed to Cloudflare (AS13335), geolocated to Sweden. The domain is registered through Nom-iq Ltd. dba COM LAUDE since 1996-09-20, expiring 2027-09-19, with DNS on the same provider's nameservers; mail routes via centrica-com.mail.protection.outlook.com, SPF present, DMARC set to reject. A GitHub organisation, ConnectedHomes (attribution confirmed), holds 100 repositories and 27 stars, led by sqs-kafka-connect at 9.

Generated from the data on this page and independently fact-checked against it.

Web presence

Primary domain: centrica.com. 213 subdomains observed via Certificate Transparency and direct crawl.

1 pages fetched from www.centrica.com on 2026-08-26 — 0 internal links observed, 4548 bytes.

TLS issued by Google Trust Services, valid 2026-08-10 – 2026-11-08. — HSTS enabled, CSP not seen, X-Frame-Options: SAMEORIGIN.

HostnameSourceFirst seen
rest.pr-1900.dev.spark.centrica.comcertificate_transparency2026-08-26
api.pr-1900.dev.spark.centrica.comcertificate_transparency2026-08-26
pr-1900.dev.spark.centrica.comcertificate_transparency2026-08-26
media.pr-1900.dev.spark.centrica.comcertificate_transparency2026-08-26
www.centrica.commanual2026-08-26
rest.pr-1890.dev.spark.centrica.comcertificate_transparency2026-08-26
media.pr-1890.dev.spark.centrica.comcertificate_transparency2026-08-26
pr-1890.dev.spark.centrica.comcertificate_transparency2026-08-26
api.pr-1890.dev.spark.centrica.comcertificate_transparency2026-08-26
api.pr-1117.dev.spark.centrica.comcertificate_transparency2026-08-26
rest.pr-1117.dev.spark.centrica.comcertificate_transparency2026-08-26
media.pr-1115.dev.spark.centrica.comcertificate_transparency2026-08-26
rest.pr-1115.dev.spark.centrica.comcertificate_transparency2026-08-26
api.lead-tool.centrica.comcertificate_transparency2026-08-25
api.preprod.lead-tool.centrica.comcertificate_transparency2026-08-25
api.dev.lead-tool.centrica.comcertificate_transparency2026-08-25
dev.forge.centrica.comcertificate_transparency2026-08-25
api.dev.forge.centrica.comcertificate_transparency2026-08-25
ws.dev.forge.centrica.comcertificate_transparency2026-08-25
rest.pr-1881.dev.spark.centrica.comcertificate_transparency2026-08-25
media.pr-1881.dev.spark.centrica.comcertificate_transparency2026-08-25
pr-1881.dev.spark.centrica.comcertificate_transparency2026-08-25
api.pr-1881.dev.spark.centrica.comcertificate_transparency2026-08-25
rest.pr-1113.dev.spark.centrica.comcertificate_transparency2026-08-25
rest.pr-1883.dev.spark.centrica.comcertificate_transparency2026-08-25

Infrastructure

Hosted on: AS13335 CLOUDFLARENET - Cloudflare, Inc., US (SE)

Mail: centrica-com.mail.protection.outlook.com. SPF present. DMARC policy: reject. Nameservers: dns1.comlaude-dns.com, dns2.comlaude-dns.net, dns3.comlaude-dns.co.uk, dns4.comlaude-dns.eu.

Registered via Nom-iq Ltd. dba COM LAUDE. Registered 1996-09-20. Expires 2027-09-19.

Digital sovereignty

2/5 — categories confirmed not tied to a US-controlled company, out of DNS, registrar, TLS certificate, host and mail. Ultimate ownership, not the jurisdiction of the specific entity observed: a subsidiary like Google Ireland still counts as American. See the full cross-index comparison.

OK DNS · OK Registrar · US TLS certificate · US Primary host · US Inbound mail

TLS certificate: Google Trust Services. Primary host: Cloudflare, Inc.. Inbound mail: Microsoft 365.

Vendor footprint

Third-party vendors identified from this company's own published DNS — apex TXT domain-verification tokens and SPF include: mechanisms. See the full vendor footprint comparison.

1Password Adobe Adobe Dynamic Tag Manager Amazon SES Anthropic Apple Business Manager Atlassian (Jira / Confluence) Autodesk Cisco Cisco Webex DocuSign Figma GlobalSign Google (Workspace / Search Console) Google Workspace HPE GreenLake Jamf Microsoft 365 Miro OneTrust Twilio Workplace from Meta

Corporate record

Company number 03033654, Active, incorporated 1995-03-16. SIC: 35110 - Production of electricity, 35130 - Distribution of electricity, 35210 - Manufacture of gas, 35220 - Distribution of gaseous fuels through mains. Registered office: MILLSTREAM MAIDENHEAD ROAD, WINDSOR, BERKSHIRE, SL4 5GD. Last confirmation statement: 2026-02-01. Last accounts made up: 2025-12-31.

Persons with significant control (from the public register; month/year of birth only, matching Companies House's own disclosure limit):

Public engineering footprint

ConnectedHomes on GitHub — 163 public repositories, 36 stars total.