Japanese-American conductor Eiki Isomura is a Philadelphia-based conductor, vocal coach/pianist, and educator. He currently serves as opera producer and associate conductor at Temple University in Philadelphia, interim orchestra director at Rowan University, and music director/organist at First Presbyterian Church of Lansdowne.

This summer (2026), he will be joining the music staff of Santa Fe Opera as cover conductor to Roberto Kalb for the US premiere of Tobias Picker's Lili Elbe.

For a decade (2015-2025), he served as Principal Conductor and Artistic Director of Opera in the Heights where he produced and conducted more than forty operas to consistent praise. He is credited with dramatically elevating the company's performance standard and deepening its commitment to role debut opportunities for emerging singers and new work development. 

He previously served on the music staff of Houston Grand Opera, preparing the workshops and world premieres of numerous chamber operas for its Song of Houston series. Guest conducting engagements at HGO include world-premieres by Shih Hui Chen, J.E. Hernández, and Mark Buller for the company's Seeking the Human Spirit initiative, and Meilina Tsui and Melisa Tien's The Big Swim in a co-production between HGO and the Asia Society Texas Center. 

Other recent guest engagements include Toshio Hosokawa’s The Raven at Opera Philadelphia; Jack Perla/Jessica Murphy Moo’s An American Dream at Opera Santa Barbara; Tosca at Opera Orlando; L'italiana in Algeri at Anchorage Opera. He served as conductor and co-librettist of Pacific Opera Project's Japanese-English bilingual Madama Butterfly that enjoyed sold-out runs in Los Angeles and Houston and drew field-wide attention. His lyric Japanese translations have also been used in performances by the IN Series (The Night Song of Orpheus) and Amplified Opera (The Ballad of Chō-chō san).

A devoted advocate for new music, Eiki formed partnerships with numerous companies to co-commission and co-produce several critically acclaimed new operas. He enjoys a relationship with Houston's premier new music collective MUSIQA, as a frequent guest conductor for performances including world premieres of Laura Schwendinger, Trevor Weston, Marcus Maroney, Rob Smith, Pierre Jalbert, and Eric Estrada.His recordings of Brandt/Beber's Kassandra and Ionesco/Al-Zand's The Leader, on the Navona and Parma labels were praised as critic's choices in Opera News.

In addition to his work as conductor, producer, and educator, Eiki is a sought-after adjudicator of vocal competitions and panelist for arts organizations. He serves on the Opera America Artistic Services Council and holds a doctorate in orchestral conducting from the University of Michigan. His conducting teachers include Kenneth Kiesler, Thomas Cockrell, Charles Bontrager, Mark Gibson, and Jerry Blackstone; and his piano teachers include Paula Fan, Katherine Collier, and Bernard Rose.

He currently resides in the Philadelphia Main Line area with his spouse and most trusted collaborator, mezzo-soprano/voice teacher Monica Isomura, and their two children.