Conference venue: Lisbon School of Economics and Management (ISEG) and the Portuguese Parliament are very close (4 minutes walk) (google map).
ISEG has 3 entrances (map in this link: https://www.iseg.ulisboa.pt/en/contacts/): Rua Miguel Lupi, n. 11; Rua das Francesinhas, no number (entrance image); Rua do Quelhas, n. 6 ['Rua' pt = Street eng]
Conference rooms: Plenary Sessions (CGD Auditorium); 6 Rooms for parallel sessions: Accenture, IAPMEI, Millenium, Santander and Staples. All the rooms are in the same building.
Additional information about ISEG (includes maps and practical information): https://www.iseg.ulisboa.pt/wp-content/uploads/Welcome-Guide_ISEG2526.pdf