Improve your existing web presence by creating/optimizing your website (on page seo/blog posts). A good article posted here can get you 10 000 potential customers to your contact us page. That's what I'll do.
More details:
1) set distinct page title (the title should contain up to 63 characters)
2) set disting meta description (the meta description should contain up to 154 characters)
3) create a H1 tag for each page, should be something similar to the page title; create some H2/H3 meta tags
4) add alt and title attributes to website images
5) create a blog/ create a blog post which should contain over 1000 words and explain there what you're company is doing, what technology you use, programming languages..
6) crate facebook/twitter/google+/linkedin/reddit profile and ask for feedback on these social networks
7) make sure the page size is below 2/3 mb and that it loads fast enough
8) submit the website to google webmaster tools; create a sitemap and add it to you're website in the webmaster tools
9) if it's not working, create a new blog post and make sure it's written better
...