OSIC FTSE 100 & S&P 500 OSINT baseline

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Spirax Group Manufacturing

FTSE 100 constituent (SPX)

Overview

Spirax Group operates in the manufacturing sector, with a primary web presence at spiraxgroup.com and two subdomains on record: www.spiraxsarco.com and www.spiraxgroup.com. A crawl of www.spiraxgroup.com fetched 102 pages and logged 6961 internal links; spiraxsarco.com, recorded as a related-domain candidate, shows a larger crawl of 200 pages and 23 external links. The site is hosted on Microsoft Corporation infrastructure (AS8075, US), with TLS issued by GlobalSign nv-sa, HSTS enabled, and no CSP present. Mail routes through spiraxgroup-com.mail.protection.outlook.com, with SPF present and a DMARC policy of reject. The domain is registered through Key-Systems GmbH, dated 2021-12-07 and expiring 2026-12-07. Companies House records the entity as company number 00596337, active, incorporated 1958-01-01 under SIC code 28131 - Manufacture of pumps, previously registered as Spirax-Sarco Engineering plc, with no persons with significant control on record.

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

Web presence

Primary domain: spiraxgroup.com. 9 subdomains observed via Certificate Transparency and direct crawl.

102 pages fetched from www.spiraxgroup.com on 2026-08-27 — 6961 internal links observed, 9747221 bytes. Page title: “Spirax Group | Solutions for a more efficient, safer and sustainable world”

TLS issued by GlobalSign nv-sa, valid 2026-01-23 – 2027-02-24. Certificate also covers: *.spiraxgroup.com, spiraxgroup.com. — HSTS enabled, CSP not seen, X-Frame-Options: sameorigin.

Links out to 30 external domains (from the crawled site, most recent pass): , ar23.spiraxgroup.com, businessdisabilityforum.org.uk, changetheraceratio.com, content.spiraxgroup.com, disabilityconfident.campaign.gov.uk, edge.media-server.com, find-and-update.company-information.service.gov.uk, onlinexperiences.com, sciencebasedtargets.org, sseacademy.csod.com, unglobalcompact.org, unitedgmh.org, www.bitc.org.uk, www.chromalox.com, www.durexindustries.com, www.fca.org.uk, www.gestra.com, www.linkedin.com, www.shareview.co.uk, www.spiraxsarco.com, www.stonewall.org.uk, www.thermocoax.com, www.unfe.org, www.vulcanic.com, www.weps.org, www.wes.org.uk, www.wisecampaign.org.uk, www.wmfts.com, www.womeninworkgroup.com

HostnameSourceFirst seen
www.spiraxsarco.com:443manual2026-08-28
www.spiraxsarco.commanual2026-08-27
www.spiraxgroup.commanual2026-08-26
spiraxdesuperheaters.spiraxsarco.comcertificate_transparency2026-08-26
simsqa.spiraxsarco.comcertificate_transparency2026-08-26
ebooks.spiraxsarco.comcertificate_transparency2026-08-21
qa.iot.spiraxsarco.comcertificate_transparency2026-08-21
solutions.spiraxsarco.comcertificate_transparency2026-08-19
www3.spiraxsarco.comcertificate_transparency2026-08-17

Related domains

Sister brands, subsidiaries and other domains also traced to this organisation — found among its own site's external links, and independently crawled the same way as the primary domain above. Some turn out bigger than the primary site itself.

DomainStatusPages crawledExternal linksRegistrarNameservers
spiraxsarco.com candidate 200 23 Key-Systems GmbH auth0020.ns.eu.uu.net, auth0030.ns.eu.uu.net
spiraxsarco.com:443 candidate 1 7 — —

Infrastructure

Hosted on: AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US (US)

Mail: spiraxgroup-com.mail.protection.outlook.com. SPF present. DMARC policy: reject. Nameservers: auth0020.ns.eu.uu.net, auth0030.ns.eu.uu.net.

Registered via Key-Systems GmbH. Registered 2021-12-07. Expires 2026-12-07.

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.

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

Primary host: Microsoft Corporation. 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.

Anthropic Apple Business Manager Atlassian (Jira / Confluence) Autodesk GlobalSign IBM Microsoft 365

Corporate record

Company number 00596337, Active, incorporated 1958-01-01. SIC: 28131 - Manufacture of pumps. Registered office: CHARLTON HOUSE CIRENCESTER ROAD, CHARLTON KINGS, CHELTENHAM, GL53 8ER. Previously known as: SPIRAX-SARCO ENGINEERING PLC. Last confirmation statement: 2026-05-27. 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

No public GitHub organisation identified.