Tamir Hendelman built one of jazz's more unusual careers: he's on records you likely already own, and his name has never been on the cover. He began keyboard lessons at 6 in Tel Aviv, and a musical turning point arrived around age 12, when concerts by Bobby McFerrin and Chick Corea showed him, in his own account, "the freedom of jazz music." His family relocated to the United States in the mid-1980s; he won recognition in Yamaha's National Keyboard Competition at 14 and toured Japan with Yamaha's Junior Original Concert group at 15, concert dates that also took him to the Kennedy Center. He trained at the Tanglewood Institute and earned a Bachelor of Music in Composition from the Eastman School of Music in 1993, studying informally along the way with Clare Fischer, Billy Childs, and Joe Harnell. His Yamaha National Keyboard Competition win at 14 is independently corroborated by a Discogs catalog entry: a 1986 Yamaha-issued LP, The Finalists Perform (1986 Electone Keyboard Festival Finals), credits him as composer and performer of "Outburst In ⅞" — his earliest catalogued recording, by nearly a decade.

Back in Los Angeles by 1996, Hendelman built the career that would define the next three decades: not as a leader chasing his own name above the marquee, but as one of the most in-demand pianists and arrangers in mainstream jazz. He joined drummer Jeff Hamilton's trio around 1999–2000 and became a member of the Clayton-Hamilton Jazz Orchestra, pianist John Clayton and Hamilton's 19-piece big band, in 2001. With that orchestra, he performed Clayton's new arrangement of Oscar Peterson's "Canadiana Suite" at the Hollywood Bowl in August 2001, a concert Peterson himself praised. His arranging and studio work put him on Natalie Cole's Still Unforgettable (2008), which won the Grammy for Best Traditional Pop Vocal Album at the 51st Grammy Awards in 2009, and on Barbra Streisand's Love Is the Answer (2009), her ninth number-one album on the Billboard 200. He also arranged and played on Roberta Gambarini's Easy to Love (2006), itself a Grammy-nominated record.

His own catalog holds its own against that resume. Playground, his debut as leader with John Clayton on bass and Jeff Hamilton on drums, was recorded in March 2008 but not released until July 24, 2009, as a Japan-only import on the small Swingbros label (catalog CMSB-28022) — Discogs shows no US pressing. Destinations (2010, Resonance Records RCD-1017), with Marco Panascia on bass and Lewis Nash on drums, reached number one on the JazzWeek Jazz Chart, the trade publication's weekly airplay chart for jazz radio, the month it came out — a genuine chart-topping record from a pianist most listeners know only as a name in someone else's liner notes. A third, later credit worth noting as a genuine co-leader date rather than a sideman one: Major Influence (2021, Capri Records), a true quartet collective with guitarist Graham Dechter, drummer Jeff Hamilton, and bassist John Clayton all receiving equal billing alongside Hendelman.

He isn't coasting on the résumé either. In 2025 he released Spring, a duo album with vocalist Tierney Sutton, recorded live after a run of spring tour dates; the two have more dates booked into late 2026, including SFJAZZ's 2026–2027 season.

Hendelman works squarely in the mainstream, standards-rooted tradition — the Great American Songbook, big-band swing, and vocal accompaniment — rather than the more exploratory or fusion-leaning sound of several of his Israeli-American jazz peers. His early formative concerts (Bobby McFerrin, Chick Corea) point toward a wide stylistic range, but his career has been built on service to the song and to the singer or bandleader in front of him: the through-line from the Clayton-Hamilton Jazz Orchestra's Oscar Peterson tribute to his own trio work with Lewis Nash and Marco Panascia to his current duo with Tierney Sutton is a pianist who treats accompaniment as a genuine art form, not a stepping stone to a solo career.