There are many sites available and to boot they are free since I am only able to post one link in the SBA community post, please view the blog post top 5 government contract websites http://www.tfcn.us/profiles/blogs/top-5-government-contract-websites. Some of these sites are really good for subcontractor work. Hope this helps, if you need any assistance feel free to contact me This post was edited to remove a phone number. Please review our Community Best Practices for more information about how best to participate in our online discussions. Please note that Community members may not include personally identifiable information, such as phone numbers, in posts. Thank you.

CCR is your first of many steps to growing your business through government
contracts. The first step I recommend is to find your government customer.
Which agencies purchase the products and services you sell? Once you know
that you can then research that agency and look at their upcoming forecast.
Knowing what they are looking for is important. Finally, all buying
activities above 25k from federal agencies happen on FBO.gov. Now that you
know your customers and what they buy you can look for solicitations. Once
you find an opportunity that works for you, start the bidding process.

I have given you the high-level overview. It should be enough to get you
started. For more detail check out my blog.

Good Luck

Hi, A useful source of information may be our page that covers contracting opportunities with the federal government.