Write a review Your name* Your e-mail* (Not for publication) Rating ★★★★★ Excellent ★★★★☆ Very good ★★★☆☆ Average ★★☆☆☆ Poor ★☆☆☆☆ Terrible Your review * * — Required information Blackstream Consulting ltd ← View details Houghton Avenue, Hempstead, Hempstead, Gillingham ME7 3RY, United Kingdom, Hempstead, England