Minimalist
Thin ring, single needle, huge negative space. Reads clean on a letterhead or an email signature where it has to work small and in one colour.
Ultra-Modern / Tech
RecommendedAngular chevron needle on a rounded-square badge. Sharpest, most "infrastructure/tech" of the five — works as an app icon and holds up at 16px without losing shape.
Classic Navigator
Traditional 8-point compass rose with N marked. Most heritage/trust-coded of the set — reads like a surveyor's stamp, good if the audience skews older or more formal (LGPS, public sector).
Geometric Abstract
Low-poly faceted needle, four shards in two brand tones. Startup-y and modern without going full tech-chevron — a middle ground between 01 and 02.
Bold Emblem
Circular seal with a heavier ring and needle. Most "signature-mark" of the set — doubles as a wax-seal-style stamp, works well as a standalone avatar/app icon.