Strategies to "cold email" prospective clients?

I run a small mobile app consulting shop and filling the pipeline has become very hard. Even though the media talks about a shortage of good app developers and a high demand, I'm having a tough time filling the pipeline with new projects.

One strategy I would like to explore is "cold emailing" prospective clients and try to see if they're looking to hire a consultant to build their mobile app.

What are some ways to make this strategy work? Pit falls I should try to avoid?

The problem with cold emailing for your specific case is credibility. Hiring a consultancy is not a decision companies would make without establishing trust first.

A better strategy to get consulting clients is by providing value to them without expecting anything in return.

One way is to write a blog that speaks to your specific niche audience. Each post should provide value. Don't blog just for the sake of it. Once you establish a name for yourself, prospects contact you.

Another tactic which works is learning about the prospect -- their business, their shortcomings, their strengths. And then proposing a clear plan on how you can help improve their shortcomings.

"Here are specific issues and solutions that we can solve for you" is far better than "We build apps, hire us".