Morrowind: Secret Masters

Acrobatics / Senyndie / Vivec, Arena Fighter's Quarters

Alchemy / Abelle Chriditte / Valenvaryon, Propylon Chamber

Alteration / Seryne Relas / Tel Branora, Seryne Relas' House

Armorer / Sirollus Saccus Hawkmoth Legion Garrison in Ebonheart

Athletics / Adibael Hainnabibi / Kaushtababi Camp

Axe / Alfhedil Elf-Hewer / Falensarano

Block / Shardie / Buckmoth Legion Fort

Blunt Weapon / Ernse Llervu / Vivec, The Abbey of St. Delyn the Wise

Conjuration / Methal Seran / Ald-ruhn, Temple

Destruction / Leles Birian / Ascadian Isles Region

Enchantment / Qorwyn / Indoranyon

Hand to Hand / Taren Omothan / Holamayan Monastery

Heavy Armor / Seanwen / Vivec, Arena Fighters Training

Illusion / Erer Darothril / Sadrith Mora, Dirty Muriel's Cornerclub

Light Armor / Aerin / Maar Gan, Andus Tradehouse

Long Blade / Ulms Drathen / Molag Mar, Armiger's Stronghold

Marksman / Missun Akin / Falasmaryon, Missun Akin's Hut

Medium Armor / Cinia Urtius on a boat at Tel Fyr Dock.

Mercantile / Ababael Timsar-Dadisun / Zainab Camp (he has 9000 gold to barter too)

Mysticism / Ardarume / Sadrith Mora, Gateway Inn

Restoration / Yakin Bael / Vos, Vos Chapel

Security / Hecerinde / Balmora, Hecerinde's House

Short Blade / Todwendy / Balmora, Lucky Lockup

Sneak / Wadarkhu / Gnaar Mok, Druegh-jigger's Rest

Spear / Mertis Falandas / Ghostgate, Tower of Dusk

Speechcraft / Skink-In-Tree's-Shade / Sadrith Mora, Wolverine Hall

Unarmored / Khargol Gro-Boguk / Dagon Fel, Vacant Tower