Need to improve seo of our company sites

Job ID: 30792668

Budget: ₹12,500 – ₹37,500 INR

We have 4 different companies and want to improve the seo of sites
we had hired individuals/companies for seo in the past but the results were not as expected.
so would like to get your responses in detail as to what approach you have to improve rankings on google,bing,yahoo

our reference site
http://www.licensedelectriciannearme.com
consider this as the starting point. get back with your plan to improve this domain's rankings