Do you know the best theme for this?

[rocka]

A company that does web hosting, design, seo all at same time.
Normally web hosting focused company gets template on web hosting or custom design.

And for graphic design focused companies there's template for that too.

What about if it's both?

[serverbundle]

You can give Divi from ElegantThemes a try.

[camlydia]

Try sahifa and you will see the different!

[rodriguezbender]

I think Villar looks pretty simple and minimalistic but is good for this purpose.

[michral]

I want to suggest you Kosmic WordPress theme.
Kosmic is a responsive premium WordPress theme, which you can use for creating a multipurpose eCommerce website. This WordPress theme is based on WooCommerce plugin.
Kosmic WordPress theme has a lot of features which you require to beat global competition. A feature such as elegant and exploring design which help to attract online users, you can enable to create customized design by using custom widget.
Have a look here: https://goo.gl/PpDeMX

[ELyon01]

Hey there! There are many available online like wordpress or villar, etc.