About

Built by Rich Software, Co.

A small engineering shop based in California. We make tools for the boring-but-important parts of running a business — the things every team needs but nobody wants to spend a sprint on.

Why email signatures?

Because every B2B company has the same story: marketing redesigns the brand, IT sends a memo, and four months later half the company is still running the old logo. Signatures are the most-seen piece of company branding, and they live in the place IT touches least.

How we build

Boring is a feature.

Stripe handles billing, AWS handles infra, Cloudflare handles edge. We don't reinvent what's mature.
Privacy is the floor, not the ceiling.

No advertising cookies, no analytics scripts, no pixels. We bill you for the product, we don't sell your data.
Small team, real engineering.

Type-safe, encryption at rest, an automated test suite, and a fully traced deploy pipeline.

Read the security policy for the long form.

Get in touch

Questions before signing up? Email hello@esigkit.com. Need a Data Processing Agreement? legal@esigkit.com. Found a vulnerability? security@esigkit.com.