Hi Mary and welcome.
Randy has some excellent ideas. Particularly the website. I am home based, and most of my business is commercial, but I am phasing out of the commercial and going more for consumer. I am getting my consumer business via 1) internet / website 2) personal contact and 3) referrals. I am also trying some other things to see if it sticks, but nothing really successful yet, but I'm still trying.
Concerning commercial, start calling some of your potential / mid sized distribution / manufacturing / other type companies. Ask to talk to the person who does training.
See if they have people come in for training, or if the have group training, or retreat type activities. Suggest they email you group photos. You will then print and mat only, a group shot for each person, plus 2 extra (at no charge for the training leader), and have it ready by the time the session is over. Have a per mat charge. The reason you do mats only, and not frames, is this way the trainees can easily carry their matted picture home. And it doesn't cost so much, at least until they get to know you.
For me, I now have commercial customers on the east coast emailing me photos that I can turn around and send back to them. I get it by 3:00 pm, and I can get a few Fed-ex'd by 6:30 so they can have it the next morning if they want; normally they can wait for a day or two for delivery. For example, client in New England had a group celebration of some of their employees at a Red Sox game. They took a bus and had a great time, and took a group picture. Guess who did the picture and did the work. A framer in Colorado., fed-ex ground.
And, make sure you have lots of business cards! I figure I have about a 1% success rate on the business cards I give to potential customers. I also carry a bag that has 5 or 6 matted samples with me most of the time. So if someone asks more about framing, I can show them some samples, and if you can get them to touch, your success percentage goes up.