Digital Marketing for Software Development Company (B2B)

Thinkgrid Labs has been in existence for about a year now. We have successfully completed building out an e-learning platform (web application) for a client in the UK that took 8 months to build out. We got this first project without any marketing efforts. We are now in the process of trying to find the right client to work with. To sell our B2B software development/consulting services we are exploring the following digital marketing channels:

1. Google Ads
2. Facebook Ads
3. Cold Emails

We would like to work with digital marketing company that has a good reputation working for B2B businesses and has proven results to help with strategizing and implementing a digital marketing plan.