Summarize this article in one sentence.
Whether presenting yourself as an individual or a business seeking subcontracting work, make sure you do so in a professional manner. Make business cards that you can hand out to potential clients. Type up an introductory letter that highlights your skills, or go a step further and make a pamphlet or brochure. Create a business website that’s professional and easy to navigate. Subcontractors succeed through good word-of-mouth and building positive professional relationships with others in the field. This means getting your name out there and establishing connections with prime contractors and those looking to offer contracts.  Expos and trade shows are great places to meet and mingle with others in your field, especially in the building trades. In other lines of work, professional or academic conferences might also fit the bill. Hand out your business cards and brochures, and direct people to your website. Work on your “elevator pitch”—a roughly 60-second introduction that sums up your abilities and enthusiasm. Fields that make heavy use of contractors and subcontractors usually have online job boards that can help connect you with prime contractors. Government agencies that use contractors and subcontractors, for instance, often provide such job boards. Use job boards in conjunction with the personal connections you make through networking and doing work in your local area. Cast a wide net when seeking prime contractors, then narrow your focus to the best options. Study the websites of potential prime contractors, and look for online reviews from customers and other subcontractors who’ve worked with them. It’s vital that you find a prime contractor who is reliable, trustworthy, and easy to work with. You want to do a lot of the same type of work as someone who’s looking to hire a contractor. Check that they are properly licensed, have the necessary insurance, and have done good work in the past.

Summary:
Market yourself professionally, highlighting your clearly-defined skills. Network at trade shows or conferences in your field. Utilize websites or organizations that connect subcontractors with prime contractors. Do your homework on potential prime contractors.