Besides Creed and Floris are sold here.
Perfumeries
Brands: Aedes**, Atelier Cologne*, Andy Tauer, Annick Goutal, ATELIER DES ORS**, Aesop, Brecourt*, BARBERIA - DRUGSTORE, BEAUFORT LONDON, Bond No 9, By Kilian, Byredo, Caron, Comme des Garcons, Comptoir Sud Pacifique, Costume National, CULTI, Diptyque, DIANA VREELAND, Farmacia SS. Annunziata, Frederic Malle, Huitieme Art*, HERVE GAMBS PARIS, Heeley, Histoires de Parfums, Jovoy, JO MALONE, Juliette has a Gun, Keiko Mecheri, LABORATORIO OLFATTIVO, L'Artisan, Ligne St. Barth, Les Liquides Imaginaires**, MariaLux, Miller et Bertaux, MAISON FRANCIS KURKDJIAN, Molton Brown**, Mona di Orio**, MARINELLA NAPOLI, MIRUM, NAOMI GOODSIR, Nabucco, Nasomatto, Nishane Istanbul, Olfactive Studio, ORTO PARISI, OFFICINA DELLE ESSENZE, Panama 1924**, PRADA LES INFUSIONS, Penhaligon's, Profumi di Pantelleria***, PUREDISTANCE, ROADS, RAMON MOLVIZAR, Reminiscence, Serge Lutens, The Different Company, Tom Ford Private Blend, Undergreen*, Vero Profumo, YVES SAINT LAURENT ORIENTAL COLLECTION, YS UZAC, Xerjoff.
There also used to be EAU D'ITALIE, Eight&Bob, Il Profumo, Isabey, Jean Charles Brosseau, Neela Vermeire.
There're also another Alla Violettas, beauty studio, located at Via Scarlatti 209; supposedly Violetta' store on Via Bernini and these two are of one company. However the second AL has another website, which lists ARS MIRABILE, ANTONIO DE CURTIS, ACQUA DI PARMA, ACQUA DI PORTOFINO, AMOUAGE**, ANDY TAUER, ATELIER COLOGNE, AQABA, Bruno ACAMPORA, BOADICEA THE VICTORIOUS, BOND N.9, BRECOURT, BARUTI, BEAUFORT, BLANCHEIDE, CALE' FRAGRANZE D'AUTORE, CLIVE CHRISTIAN, CARNER BARCELONA**, COQUILLETE PARIS, COSTUME NATIONAL, CREED, CZECH & SPEAKE, D.R.HARRIS & CO, D'ORSAY PARFUMS, Demeter THE LIBRARY OF FRAGRANCE, ESCENTRIC MOLECULES, EVODY PARFUMS PARIS, ETAT LIBRE D'ORANGE, ETRO, FRANCESCA DELL'ORO, FRAPIN, FRANCK BOCLET, GRITTI, HERVE' GAMBS, HUGH PARSONS, HAYARI**, HOUBIGANT PARIS, HUITIEME ART, HUMIECKI & GRAEF, IL NERO PROFUMI, ISABEY PARIS, JARDINS D'ECRIVAINS, JEAN PATOU, JEHANNE RIGAUD, JULIETTE HAS A GUN, KEIKO MECHERI, KNIZE, Lorenzo VILLORESI, La MAISON DE LA VANILLE, Liquides Imaginaires*, LES NEREIDES, LIGNE ST BARTH, LES COCOTTES DE PARIS, MAITRE PARFUMEUR ET GANTIER, MANSFIELD, MAJDA BEKKALI, MASQUE, MARIA CANDIDA GENTILE, MARIA LUX, MENDITTOROSA, MEO FUSCIUNI, MONTALE PARFUMS, MOLINARD, MARINELLA E., MOLTON BROWN, MR PARFUMS, MEMO PARIS, MAKING OF CANNES, MAP OF THE HEART, NISHANE ISTANBUL, NASOMATTO, NICOLAS DE BARRY, NOBILE 1942, Noble Isle, ORTO PARISI, ORLOV, OFFICINE DEL PROFUMO, ODIN NEW YORK, PINEIDER, PANAMA 1924, PROFUMI DI PANTELLERIA, PARFUM D'EMPIRE, Parfums MICALLEF, PARFUMS DE MARLY, PERRIS MONTE CARLO, PROFUMI DEL FORTE, PAUL EMILIEN, PARFUMS DE LA BASTIDE, RANIA J, REMINISCENCE, ROBERT PIGUET, ROSE & CO MANCHESTER, ROYALL LYME BERMUDA, SERGE LUTENS**, SAMMARCO PROFUMI, SAUF, STENDHAL COSMETICS, TANN ROKKA, TAYLOR OF OLD BOND STREET, TOM FORD PRIVATE BLEND, TORRE OF TUSCANY, THE MERCHANT OF VENICE, TEA ROSE PARFUM, TEATRO FRAGRANZE UNICHE, TRUEFITT & HILL, Unum.
The list is common to all stores (there's also another shop in Caserta). According to the websites of the brands, the one at Scarlatti stocks at least ACQUA DI PORTOFINO, Acqua di Parma, Creed, Comme des Garcons, Clive Christian, d'Orsay, EVODY PARFUMS PARIS, Etat Libre d'Orange, HUGH PARSONS, Juliette has a Gun, Jardins d'Ecrivains, Lorenzo Villoresi, Montale, Parfums Micallef, PINEIDER, PROFUMI DI PANTELLERIA, PANAMA 1924, THE MERCHANT OF VENICE.
Brands: 777 STEPHANE HUMBERT LUCAS, Alexandre J*, Acqua di Porofino***, ALTAIA, Agonist, Amorvero, Amouage, Andrea Maack, Andy Tauer Perfumes, Annick Goutal, Antonio Alessandria, Arquiste, ANDRE PUTMAN, Atelier Cologne, Amouroud, Arte Profumi, Beaufort, Blood Concept, Boadicea The Victorious, Bond No 9, Brecourt, Byredo, Carner, CRABTREE & EVELYN, Comptoir Sud Pacifique, Czech&Speak, Diptyque, Diane Pernet, David Jourquin, DIANA VREELAND*, E.Coudray, Eight & Bob, Etat Libre d'Orange, Frapin, Fragonard, Farmacia ss.Annunziata, Feret, Grossmith London, Heeley, Humiecki&Graef, Initio, Isabey Paris, Jacques Zolty, Jacques Fath, J.F. Schwarzlose, Jul et Mad, Jeroboam, Juliette has a Gun, Knize, Keiko Mecheri, L’Artisan Parfumeur, Ligne St Barth, Lorenzo Villoresi, Le Cinéma Olfactif, Les Parfums de Rosine, Lostmarc'h, LM Parfums, Le Galion, Mirum, Molton Brown, Maison Francis Kurkdjian, Maitre Parfumeur et Gantier, Mancera, Map of the Heart, MariaLux, Maison Incens, Mark Buxton, Monom, Memo Paris, Meo Fusciuni, Miller et Bertaux, Miller Harris, Min New York, Mona di Orio, Moresque, Montale, Naomi Goodzir, Nasomatto, Neela Vermeire, Nobile 1942, Nomenclature, Olfactive Studio, OFFICINA DELLE ESSENZE, OLIVER & CO, Olivier Durbano, Orto Parisi, Odriu, Odin, One of Those, Ormonde Jayne, Perris Monte Carlo, Premiere Note, Parfums de Marly*, Pineider***, Panama 1924, PARFUMS D'ORSAY, Puredistance, Parfumerie Generale, Phaedon, Ramon Monegal, RE PROFUMO VENEZIA, Room 1015, Santa Eulalia Barcelona, SIMONE COSAC, Simone Andreoli, Sospiro, Scent Bar*, SoOud, TOM DAXON, TRUEFITT & HILL, The House of Oud***, The Different Company, TEATRO FRAGRANZE UNICHE, TANN ROKKA, Terry de Gunzburg, Uermi, Ulrich Lang New York, Unum, vero.profumo, VON EUSERSDORFF, Xerjoff, YS - UZAC, Zero Molecule.
There also used to be Abahna, Acqua di Stresa, Bruno Acampora, Herve Gambs, Histoires d'Eaux, Huitieme Art Parfums, Il Profumo, Linari, L.T. Piver, MASQUE MILANO, Nez a Nez, Royal Lyme Bermuda Limited, Tiziana Terenzi.
Brands: Amouage, Creed, Clive Christian, Cire Trudon, Collection Croisiere, d'Orsay, Dr. Vranjes, Esteban, Floris, Fueguia 1833, Fragonard, Juliette has a Gun, Initio Parfum Privee, Keiko Mecheri, Laduree, Lorenzo Villoresi, Memo, Montale, Majda Bekkali, MiN New York, Ormonde Jayne, Profumum, Parfumerie Generale, Pantheon Roma, Tiziana Terenzi, The Laundress.
There also used to be Annick Goutal, Bois 1920, Ex Voto, Il Profumo, Knize, L'Artisan, Laura Tonatto, Mathilde M, Penhaligon's, Rigaud, Santa Maria Novella**.
There's also another branch which was recently opened at Via Cavallerizza Achiaia 21. Brands, stocked there, are at least Aedes, Clive Christian, Cire Trudon, Dr Vranjes, Jovoy, Ormonde Jayne, Profumum.
Brands: Acqua di Parma, Creed, Carthusia**, Floris, Lorenzo Villoresi*, Penhaligon's, Robert Piguet, Serge Lutens, Taylor of Old Bond Street.
There also used to be Bruno Acampora, Boellis, Caron, Costume National, Crabtree & Evelyn, Etro, Geoffrey Beene, Jean Patou, Knize, Ligne St Barth, Reminiscence.
Brands: A Lab on Fire, Atelier Cologne**, Acqua di Parma, Au pays de la fleur d'oranger, Blood Concept, Carthusia, Comme des Garcons (incl. CdG' series),Etro, Escentric Molecules, Juliette has a Gun, Mirum, Molinard**, Parfums Bombay 1950, Parfums Berdoues, Perris Monte Carlo, Reminiscence, SoOud, The Party.
There also used to be Czech&Speak, Caron, Costume National, Lubin**, Ligne St Barth, Ulrich Lang, Teo Cabanel.
Profumeria Marino Anna
Brands: Acqua di Parma, Amouage, Atkinsons, Borrelli, Bruno Acampora, Caron, Comme des Garcons, Creed, Dior Privee, Etro, Francesca dell'Oro*, Juliette has a Gun, Keiko Mecheri, Lubin, Les Nereides, Montale, Nasomatto, Profumi del Forte, Reminiscence, Serge Lutens, Stendhal.
Brands: Creed, Clive Christian*, Floris, Santa Maria Novella
Old England
Brands: Creed, Jean Charles Brosseau, Penhaligon's.
Old England is the store that sells english/scottish clothes etc, including perfumes (even if Brosseau is a french brand =) ).
There might also be more of perfume' brands there, since there is no website or even reviews about this store on Internet. However Old England was marked as point of sale on Penhaligon's and JCB' websites.
PROFUMERIA DI LUISA ANDREANO
Brands: Acca Kappa, Acqua dell'Elba.
PAOLO MASCOLO
Brands: Carthusia, The Merchant of Venice.
VERIDIANA DE MORAES
Brands: at least Profumi del Forte, Panpuri.
Profumi & Bellezza
Brands: Acqua di Taormina.
Brands: Jeroboam, Rheyms, Unum.
Brands: The Laundress.
PATRICE
Brands: Absolument Absinthe, Carthusia, Lorenzo Villoresi, ScentBar.
Brands: Laura Mercier, Maison Martin Margiela.
VETRIERA 12
Brands: Voluspa.
C.A.G.E. Pharma
Brands: Erbario Toscano.
Artemisia
Brands: L'Erbolario.
Airports
Closed Stores
*According to the homepage of the brand.
**According to the homepage of the store.
***According to distributor.