Best months to email market?

[Riverblossom]

Okay, I am a counselor and I recently opened a private practice. I have been trying to get some more clients and outside of the the traditional give my card to other professionals and a website, I have tried the following: targeted Facebook ad, ad in the appropriate classified section of the paper and they have not been generating too many calls or emails. I can also offer seminars for companies and I want to do some email marketing via Constant Contact or iContact.

I am THINKING (remember I am not hip with the marketing yet!) that perhaps companies may not invest in seminars in the next 3 months - as Xmas is coming up, the New Year and everyone needs to recover financially. I may be wrong.

So when would be the best months to target companies to hire me for seminars?