All prices are net. Consumers in the EU pay the VAT of their country on top: the pricing section of the home page shows the price with VAT for your country, and checkout shows the total before you pay. Prices in US dollars use the same numbers and are shown before tax.
You can also start with HawkOpen Intro: €1 plus VAT for the first 20 days with full Business access. From day 21, Business continues with yearly billing at €90 a year plus VAT and renews every year until canceled. You can choose monthly billing at €11/month instead.