Spiral Games is a new UK-based manufacturer of terrain.
From their announcement:
Welcome to Spiral Games. We are a small company based in the UK. Our goal is to make terrain for miniature wargames which will be quick and easy to assemble and get you plenty of terrain on the table. We do not pretend to do the best looking terrain in the world, but we offer a solution which could have you battling for a whole city within an afternoon.
The buildings we will make will be modular within their ranges, and assemble into larger constructions. They are made out of durable, special type of expanded polystyrene, meaning that they will take a beating and still stand up, unlike card terrain. If you want to modify them then there will be even more options of construction.