E Σ
E plus one
Sigma plus one

At a glance, E+1. Look closer, Σ+1.

Two characters and a sign. No mystery. Easy to say, easy to type, easy to draw.

Then you tilt your head. The E is a sigma laid down — summation notation — the next term in an infinite series. Each product is one term. Add another, the series grows. The brand grows.

Two names, one mark. One for casual reading, one for the people who know.

02 In Notation
brand = E + 1 also  = Σ + 1 where Σ = ∑(productn) read  as: "next term" n = 1 → metrology scale n = 2 → forthcoming n = ∞