Consultancies are digital technology businesses. It all depends on what you have done in that company, what kind of impact you have created and if that impact was created with something that adds to being valuable on a standalone basis.
For instance, if the consultancy is just doing routine work, then that doesn’t add up for much. However, if you can prove that you have done something path breaking, innovative, or pushing-the-boundaries work, then collect evidence for it, including perhaps from clients for whom you did the work.
After you have collected the evidence, take a good hard look at your evidence and get a feel of whether it adds up to a strong application. If so, go for it.
In the end, the application costs £452 and your time. You have to make a judgment call on whether it is worth it or not.
ps: I do not represent TechNation or their decision making abilities in any way.