(2003) Paul Oakenfold Feat. Tiff Lacey - Hypnotised [42661-2]
(2003) Paul Oakenfold Feat. Tiff Lacey - Hypnotised [EW271CD]
(2004) ATB Feat. Tiff Lacey - Ecstasy [Kontor386]
(2004) ATB Feat. Tiff Lacey - Here With Me [4250117602062]
(2004) ATB Feat. Tiff Lacey - Marrakech (Alex M.O.R.P.H. Remixes) [100479]
(2004) ATB Feat. Tiff Lacey - Marrakech [RAD 99204-2]
(2004) Casanova Traxx Feat. Tiff Lacey - Casanova [none]
(2004) Neo & Farina Feat. Tiff Lacey - The Eternal [12HDT0204]
(2005) ATB Feat. Tiff Lacey - Humanity [Kontor471]
(2005) Headstrong Feat. Tiff Lacey - Close Your Eyes [DAREY005A]
(2005) Lost Witness Feat. Tiff Lacey - Home [NEBCD067]
(2006) ATB Feat. Tiff Lacey - Humanity [302 060 509 2]
(2006) Conjure One Feat. Tiff Lacey - Face The Music [N000266DIG]
(2006) Flash Brothers Feat. Tiff Lacey - Faith In Love [SUPRA 016]
(2006) Headstrong Feat. Tiff Lacey - Silver Shadow [SOLA0010]
(2006) Maxi Feat. Tiff Lacey - Moon Love [EM06065]
(2007) Adam Nickey Feat. Tiff Lacey - Letting Go [DEEP22CD]
(2007) Flash Brothers Feat. Tiff Lacey - Stay [CLHR026]
(2007) Headstrong Feat. Tiff Lacey - Symphony Of Soul [SOLA0012CD]
(2007) Headstrong Feat. Tiff Lacey - The Truth [SOLA0011CD]
(2007) Keenan & Anderson Feat. Tiff Lacey - Runaway [NAV-200708]
(2007) Lost Witness Feat. Tiff Lacey - Coming Down [ONCAP005]
(2007) Matt Darey Feat. Tiff Lacey - Sum Of All Fears [none]
(2007) Shifted Reality & Santerna Feat. Tiff Lacey - On This Day [AE010]
(2007) Summer Sessions Feat. Tiff Lacey - By My Side [FRZ002CD]
(2007) Tom Cloud Feat. Tiff Lacey - Secretly [ASOT070]
(2007) Wippenberg Feat. Tiff Lacey - Promisedland [none]
(2008) Abbott & Chambers Feat. Tiff Lacey - Strange Liaison [AE011]
(2008) Adyjay Feat. Tiff Lacey - Part Of U [EVO8017]
(2008) After Meridian Feat. Tiff Lacey - New York Airport [SLRS023]
(2008) BuRo Feat. Tiff Lacey - Close Enough [SMD2044]
(2008) Carlo Calabro Feat. Tiff Lacey - Heart Of Stone [CAP010]
(2008) Cybersutra Feat. Tiff Lacey - Summer Sutra [440X]
(2008) Datt & Bissen Feat. Tiff Lacey - Take Your Time [FDELUX-02]
(2008) Datt & Bissen Feat. Tiff Lacey - Take Your Time (Remixes) [FDELUX20]
(2008) E-Mortal Feat. Tiff Lacey - Coming Home [SOLA0116]
(2008) Keenan And Anderson Feat. Tiff Lacey - Runaway (New Mixes) [NAV200805]
(2008) Kopi Luwak Feat. Tiff Lacey - Far And Away [INFRA010]
(2008) Lost Witness Feat. Tiff Lacey - Home (New Mixes) [WOT005]
(2008) Luke Terry & Kopi Luwak Feat. Tiff Lacey - Fall Into The Moon [AEPR008]
(2008) Marco Torrance Feat. Tiff Lacey - Free of Fear [NOZIL005]
(2008) Michael Badal Feat. Tiff Lacey - Don't Be Afraid [Enprog013]
(2008) Nick Murray Feat. Tiff Lacey - The Sweetest Sound [LUK015]
(2008) Phynn Feat. Tiff Lacey - Try Again [BH-2430]
(2008) Purepath vs. Natlife vs. Amex Feat. Tiff Lacey - Clockworks [ITWT-400-0]
(2008) Robimon Feat. Tiff Lacey - Goodbye [MPFS013]
(2008) Rozza Feat. Tiff Lacey - No More Rain [INSAT05]
(2008) Rozza Feat. Tiff Lacey - No More Rain [Promo]
(2008) Steve Allen & Ben Alonzi Feat. Tiff Lacey - Wildfires (Hardcore Mixes) [COMMUHDC014]
(2008) Steve Allen & Ben Alonzi Feat. Tiff Lacey - Wildfires [COMMU014]
(2008) Steve Allen And Ben Alonz Feat. Tiff Lacey - Wildfires (Remixes) [COMMU014]
(2008) Tatana & Andrew Bennett Feat. Tiff Lacey - Closer (Than A Heartbeat) [S2R0191]
(2008) Teya Feat. Tiff Lacey - Only You [ASK002]
(2009) Alternative Reality Feat. Tiff Lacey - What You Do To Me [PD-049]
(2009) Cybersutra Feat. Tiff Lacey - Summersutra (2 Of 2) [513X]
(2009) DJ Zya Feat. Tiff Lacey - Dreaming [JSR035]
(2009) Emanuele Braveri Feat. Tiff Lacey - Travel [MMR-180]
(2009) Feel & Alexander Popov Feat. Tiff Lacey - Time After Time (Part 1) [UDR0819]
(2009) Feel & Alexander Popov feat. Tiff Lacey - Time After Time (Remixes) [UDR0819R]
(2009) Feel Feat. Tiff Lacey - Loved U 2 Much [CSR 007]
(2009) Italian Mafia DJ Feat. Tiff Lacey - I Loved You Good [SENS016D]
(2009) Javah Feat. Tiff Lacey - One By One 2009 [RDD010]
(2009) Luke Terry Feat. Tiff Lacey - The Last Farewell [UNERED013]
(2009) Maciej Panczyk Feat. Tiff Lacey - Handle Me With Care [NDEEP059]
(2009) Manvel Ter Pogosyan Feat. Tiff Lacey - Sweet Memories [AV008]
(2009) Perpetual Feat. Tiff Lacey - Restless [ENPROG024]
(2009) Physica Law Feat. Tiff Lacey - Starlight [MR023]
(2009) Raver Feat. Tiff Lacey - Conscience [SELO20]
(2009) Romi Feat. Tiff Lacey - Soothsayer [CFC015]
(2009) Tash Feat. Tiff Lacey - Sweet 17 [MOVD001]
(2009) Tenishia Feat. Tiff Lacey - Burning From The Inside [S107001]
(2009) Vierro Feat. Tiff Lacey - Storm [10009035]
(2009) Wellenrausch and Velvet Skies Feat. Tiff Lacey - Watching Jupiter and Mars [RDX033PT1]
(2010) Aurosonic & Morphing Shadows Feat. Tiff Lacey - Always Together [SMD2041]
(2010) Chus Liberata Feat. Tiff Lacey - Beds [TD050]
(2010) Der Mystik Feat. Tiff Lacey - Watching The World [FACTUAL006]
(2010) George Acosta Feat. Tiff Lacey - I Know [ACO002]
(2010) Maciej Panczyk Feat. Tiff Lacey - Handle Me With Care (Remixes) [NDEEP059R]
(2010) Manvel Ter Pogosyan Feat. Tiff Lacey - Sweet Memories (Remixes) [AV011]
(2010) Marco Torrance Feat. Tiff Lacey - Dancing Brave [AKST021]
(2010) Moonbeam & Tyler Michaud Feat. Tiff Lacey - Openhearted [Black Hole 309-0]
(2010) Motionchild & Will Holland feat. Tiff Lacey - Arctic Kiss (Part 1) [Enprog032]
(2010) Motionchild & Will Holland feat. Tiff Lacey - Arctic Kiss (Part 2) [Enhanced052]