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Which daimyo supported Tokugawa Ieyasu at the Battle of Sekigahara?

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Statue of Tokugawa Ieyasu in ornate robes holding a bow, with arrows on his back, at the Tosho-gu shrine in Nikko, Japan. — Tokugawa Ieyasu Statue of Tokugawa Ieyasu at the Tōshō Shrine in Nikkō, Japan.

At the Battle of Sekigahara, Tokugawa Ieyasu led an eastern coalition of daimyo against the western loyalists of the Toyotomi clan. Key figures and groups who supported or defected to Ieyasu included:1

Fukushima Masanori: Led the vanguard of Ieyasu’s army as it entered the valley.1
Ii Naomasa: Commanded a critical division of shock troops.1
Kobayakawa Hideaki: Though initially positioned with the western forces, he had secretly communicated his support to Ieyasu. During the battle, he defected by attacking the western lines, a move that proved decisive in securing Ieyasu’s victory.1
Kikkawa Hiroie: Communicated with eastern generals prior to the battle, promising that the Mōri clan would not move. He honored this commitment, effectively neutralizing a significant portion of the western army.1

Following the victory, Ieyasu redistributed lands to these allies, including Kobayakawa Hideaki and Kikkawa Hiroie, to solidify his new political order.1