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Brand guidelines & logos

For distributors, dealers, agencies and partners who use the Sigma name or logo, on the web or in print.

Cover of the Sigma AgriScience Brand Guidelines, 2026 edition
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Sigma Brand Guidelines

Nine pages on how to show Sigma correctly: logo versions, clear space and sizes, colors, type, photography, documents and co-branding with your own brand.

View the guidelinesDownload PDF
Logo files

Download the Sigma logo

Use these original files only. PNG works for websites, social posts and office documents. SVG is vector artwork for print shops, signs and merchandise.

Sigma logo, primary version: red dots with charcoal wordmark
PrimaryRed dots with charcoal ring and wordmark. Use on white or very light backgrounds. This is the preferred version.
PNGSVG for print
Sigma logo, all white version on black
All whiteFor Sigma black, Sigma red, or a dark, calm area of a photo.
PNGSVG for print
Sigma logo, all black version
All blackOnly for one-color jobs: fax, stamps and single-ink printing.
PNGSVG for print
The rules at a glance

Using the Sigma logo

  • Never change the artwork. Don't redraw, retype, recolor, stretch, rotate, or add shadows, glows or outlines.
  • The dots are always Sigma red on the primary logo. The retired multicolor logo is no longer used.
  • Give it room. Keep clear space on every side equal to the height of the SIGMA letters.
  • Minimum size: 1.25 in (32 mm) wide in print, 140 px on screen.
  • Right background: white, Sigma black, Sigma red or a calm, dark photo area. No busy textures, mid-tone grays or bright colors.
  • Co-branding: your logo and Sigma's side by side, separated by a thin line, with Sigma at least equal in visual weight.
  • Product names exactly as written, such as "Sigma 4-4-4 Bio" and "Sigma Liquid Foundation Program". Don't retype analyses, rates or claims; use Sigma's data sheets.
  • Fertilizer claims only. Sigma products are fertilizers, biostimulants and soil amendments. No disease, insect or weed control claims, and no comparisons to named competitors.
Send it before it prints. Email drafts of anything that uses the Sigma name or logo to [email protected] for review. Need a different file format or a document? Ask us at the same address.
The story behind the mark

A look inside the granulator

The Sigma mark is a window into how our products are manufactured. The ring is the view looking straight into a rotary drum granulator. The dots are granules tumbling and building inside it, and together they trace the S in Sigma.

Every Sigma granule starts that way: raw materials turning in the drum until they become a uniform, dust-free granule. The logo has changed color over the years. That idea has never changed.

The Sigma mark on its own: a ring with red dots tumbling inside it in the shape of an S
The original 2012 Sigma logo in green and gray
2012Where it startedOur first logo, designed with LogoBee, a design studio in Canada. Sigma green dots, a gray ring and the line "when quality matters most." The granulator idea was there from day one.Retired
The 2017 Sigma logo with red, orange and yellow dots and a bold charcoal wordmark
2017Warmth for growthGraphic designer Troy Johnson at AdNormal rebuilt the mark: a bolder, stretched SIGMA wordmark and dots in red, orange and yellow. Warm colors, like the sun, for the warmth that brings growth.Retired
Today's Sigma logo with solid Sigma red dots
TodayOne color, one SigmaThe same mark, now in a single Sigma red. One color prints the same on a bag, a truck, a sign, a shirt or a screen, reads clearly at small sizes, and stands out in a market full of green. Simple, confident and easy to get right.Current logo