The talented former Eastleigh and Barnet player is Neil Smith’s latest new signing.
The 24-year-old hopes to propel Bromley into the play-offs after they just missed out last season.
Coulson has been an important part of the Ebbsfleet team since he signed in early 2017.
Manager Smith hopes he can bring some goals to the side and he could play this weekend against Gateshead.
Coulson told the Ravens’ website: I’m delighted it’s all happened so quickly. Everyone has been really friendly today, and I very much enjoyed my first training session.
“I’ve been told all about where the club wants to be in the next few years, and that’s a huge reason why I’ve bought into it.”