Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Sipher Computing Ltd ← View details 36 English Street, Dumfries, Dumfries and Galloway DG12BY, United Kingdom, Dumfries, England