I have three other pieces of advice.
One you need to decide whether you want to run a consultancy or be a consultant. The first means scaling by hiring more people the second means scaling by increasing your rate. You can make more money doing the first but your job will eventually be 100% account management and sales.
The second piece of advice is you need to come up with a business plan. The most important part of this is an actual plan for predictably acquiring new customers.
Third general piece of advice is 98% of the time being a general software consulting company is a shitty business. A good first step is pick a specific problem and/or a specific industry. "We build custom CRMs for enterprise sales organizations.", "we do custom ERP work for Oil & Gas" or "We help startups scale Postgres databases" are all much better businesses than "we write software". This is for two reasons. One you have a specific product you're selling to a specific customer which will help immensely with sales/marketing. Two the margins are much better.
