Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Sigma 3 Ltd ← View details Llantrisant Business Park, Llantrisant, Pontyclun, Mid Glamorgan CF72 8LF, United Kingdom, Pontyclun, England