It also says militants are setting up training camps in Europe
The assistant director of Europol says Europe can expect more high-powered and deadly attacks from the Islamic terrorist group known as ISIS.
Europol is also warning of further Paris-style attacks across Europe.
"Europe is currently facing the most significant terrorist threat in over 10 years", the agency says.
"The Paris attacks on 13 November 2015 indicate a shift towards a clear international dimension of Islamic State to carry out special forces style attacks in the international environment. This and the growing number of foreign fighters are posing new challenges for EU member states".
"The threat of further terrorist attacks in Europe remains high", it adds.
"Therefore there is a great need within the European Union to strengthen our response to terror, to suspected terrorist networks and foreign fighters, and have an improved strategic understanding of threats".
Dimitris Avramopoulos - European Commissioner for Migration, Home Affairs and Citizenship - said: "EU institutions responded swiftly and strongly to the terrorist attacks of last year and moved to augment the European Union’s capacity to deal with the terrorist threat".
"As foreseen in the European Agenda on Security put forward by the European Commission, the establishment of the European Counter Terrorism Centre is a major strategic opportunity for the EU to make our collective efforts to fight terrorism more effective. I call on EU member states to trust and support the European Counter Terrorism Centre to help it succeed in its important mission,” said Dimitris Avramopoulos, European Commissioner for Migration, Home Affairs and Citizenship".
The launch of the ECTC as of January 2016 followed a decision from the EU Justice Ministers last November.
The ECTC will be an enhanced central information hub by which the member states can increase information sharing and operational coordination.
Will Van Gemert also warned that ISIS militants are setting up training camps on the continent.
"Well there's a change in the way that ISIS is operating - it's not say a lonely war for somebody who's radicalising in this field, but special forces-style of attack towards the European Union" he told Newstalk Breakfast.
"I've seen the ability of ISIS to form such a complicated attack in preparation it has been doing" he added.