Spirax-Sarco Engineering logo is a red text wordmark on a white background.
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Spirax-Sarco Engineering

Spirax-Sarco Engineering plc was the Cheltenham-based thermal energy and fluid technology group. In February 2024 it rebranded as Spirax Group, and the legal name change to Spirax Group plc completed in June 2024.

Spirax-Sarco Engineering plc, the Cheltenham-based thermal energy and fluid technology group, retired its long-standing corporate name and identity in February 2024 when it rebranded as Spirax Group. The change was announced on 22 February 2024, with the company stating that the new name “balances our history and where we have come from, with who we are today” and creates clearer distinction between the Group and its Spirax Sarco trading division.[1] The legal name change to Spirax Group plc was approved by shareholders at the Annual General Meeting on 15 May 2024 and completed in June 2024.[2]

Design and History

The 2024 rebrand was described by the company as a “refreshed brand” launched in February, reflecting “the growth and evolution of our Group, while staying true to our heritage of more than 135 years.”[2] The Group’s 2023 Annual Report was the first publication to feature the new branding prominently.[3]

Before the Group-level rebrand, the Spirax Sarco trading brand underwent its own visual refresh for 2012. Spirax Sarco unveiled a new logo and branding initiative, with the tagline “First for Steam Solutions,” which the company said reflected the essence of the rebranding initiative and its vision. The new identity was “heavily influenced by customer feedback” and launched with a fresh visual identity beginning in 2012.[4][5]

The company traces its origins to 1888, when it was founded in London as Sanders, Rehders and Co, importing thermostatic steam traps from Germany. After acquiring Sarco Thermostats in 1937, the business moved to Cheltenham and was later listed on the London Stock Exchange in 1959.[6]

Meaning and Symbolism

The 2024 name change was intended to reflect the company’s evolution into “a Group of three strong solutions-focused Businesses”: Steam Thermal Solutions, Electric Thermal Solutions, and Watson-Marlow Fluid Technology Solutions. The company stated the new name “creates more distinction between the Group and its Spirax Sarco trading Division (part of Steam Thermal Solutions), providing improved clarity for all stakeholders.”[1]

For the 2012 Spirax Sarco brand refresh, the company’s tagline “First for Steam Solutions” was presented as reflecting the company’s vision and its expertise in steam utilization.[5]

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Logo data

Measured from the original SVG file on 30/09/2026.

Colors

Single color.

  • #E31C24Red, 100%

    RGB 227, 28, 36; CMYK 0, 88, 84, 11

    White text 4.7:1 (passes AA)

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Backgrounds and sizes

Contrast and color difference

Compared with Manufacturing

259 measured Manufacturing logos

Only 15% of Manufacturing logos in the archive use red as the main color.

  • Main color red15%
  • Wordmark47%
  • Single color52%
  • Most common main color here: black33%

From measured files, not tags. Updated 28/10/2026.

Structure

Logo type
WordmarkClassified by AI
Proportions
14.2 : 1Horizontal
Ink coverage
12%88% empty space inside the outline
Symmetry
Asymmetric12% left-right match
Outline
Free-formOverall silhouette
Complexity
Detailed27 shapes, about 641 points

Tints and shades

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#E31C24

Typography

Lettering style: Geometric sans.

This is a style class, not the exact font. The font has not been documented.

Free fonts in this style: Montserrat, Outfit, Urbanist

Visual description

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Style
Minimal, corporate
Layout
Lettering on its own
Text in the logo
Spirax-Sarco Engineering plc

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