Helvetica Monospaced font pairing with Helvetica

Examples of websites using Helvetica Monospaced (designed by Linotype Design Studio and released by Linotype in 1983) with Helvetica (Helvetica is a sans serif font designed by Max Miedinger, Linotype Design Studio, and released by Linotype in 1957. It is available in a wide range of styles and weights)

Helvetica specimen

Helvetica Monospaced + Helvetica website examples