We have been working for IT-companies since 2005. We started as an icon design studio, so we know how an application’s icon design can affect the number of app downloads. I can show you cases if you are interested.
Now we can solve any other problems concerning design, from logotypes to websites.
Our aim is to prove the idea that design should be not only nice looking but also effective and increase website conversion and help you to sell more software.
If you have any questions I’ll be glad to answer.
Thanks for attention!
Diana
A link to your studio’s portfolio would be helpful. 
You can find our portfolio here https://www.behance.net/IconDesignLAB
or on our website http://www.icondesignlab.com/en/portfolio/ 
Please don’t take it as an offense but the artists and designers should really push their skills up to the modern trends. For example many illustrations are great for 2010 skeuomorphic iPhone era but now they look very dated.
Here are modern landing page trends:
https://medium.muz.li/3-trends-in-landing-page-design-5cf900f2c90f
You’ll find more examples of great designs and illustrations in Muzli digest.
There is also http://sidebar.io with 5 links on modern design themes daily.
I’m not offended. We really rarely update the portfolio. If you are interested in something specific, I can send you samples.