1 EXHIBIT 24.1 POWER OF ATTORNEY We, the undersigned directors of Heritage Commerce Corp, do hereby severally constitute and appoint John E. Rossell, III, and Lawrence McGovern, and each of them singly, our true and lawful attorneys and agents, to do any and all things and acts in our names in the capacities indicated below and to execute any and all instruments for us and in our names in the capacities indicated below which said John E. Rossell, III, and Lawrence McGovern, or either of them, may deem necessary or advisable to enable Heritage Commerce Corp to comply with the Securities Act of 1933, as amended, and any rules, regulations and requirements of the Securities and Exchange Commission, in connection with the offering contemplated by this Registration Statement on Form S-3, including specifically, but not limited to, power and authority to sign for us or any of us in our names in the capacities indicated below the Registration Statement and any and all amendments (including post-effective amendments) thereto; and we hereby ratify and confirm all that said John E. Rossell, III, and Lawrence McGovern, or either of them, shall do or cause to be done by virtue hereof. SIGNATURE TITLE DATE --------- ----- ---- /s/ FRANK BISCEGLIA Director April 15, 1999 - --------------------------------------------------- Frank Bisceglia Director April 15, 1999 - --------------------------------------------------- James Blair /s/ ARTHUR CARMICHAEL, JR. Director April 15, 1999 - --------------------------------------------------- Arthur Carmichael, Jr. /s/ RICHARD CONNIFF Director April 15, 1999 - --------------------------------------------------- Richard Conniff /s/ WILLIAM DEL BIAGGIO, JR. Director April 15, 1999 - --------------------------------------------------- William Del Biaggio, Jr. /s/ ANNEKE DURY Director April 15, 1999 - --------------------------------------------------- Anneke Dury Director April 15, 1999 - --------------------------------------------------- Tracey Enfantino /s/ GLENN GEORGE Director April 15, 1999 - --------------------------------------------------- Glenn George 2 SIGNATURE TITLE DATE --------- ----- ---- /s/ ROBERT GIONFRIDDO Director April 15, 1999 - --------------------------------------------------- Robert Gionfriddo /s/ P. MICHAEL HUNT Director April 15, 1999 - --------------------------------------------------- P. Michael Hunt /s/ JOHN LARSEN Director April 15, 1999 - --------------------------------------------------- John Larsen /s/ LON NORMANDIN Director April 15, 1999 - --------------------------------------------------- Louis O. (Lon) Normandin /s/ JACK PECKHAM Director April 15, 1999 - --------------------------------------------------- Jack Peckham /s/ ROBERT PETERS Director April 15, 1999 - --------------------------------------------------- Robert Peters /s/ HUMPHREY POLANEN Director April 15, 1999 - --------------------------------------------------- Humphrey Polanen Director April 15, 1999 - --------------------------------------------------- Kirk Rossmann /s/ BRAD SMITH Director April 15, 1999 - --------------------------------------------------- Brad Smith