the march was organized by two orgs primarily based on what they have on the site, and these two are the CEOs of both orgs:

https://en.wikipedia.org/wiki/William_Daroff

the CEO of the Conference of Presidents of Major American Jewish Organizations.

Upon moving to Washington, D.C., in 2000, Daroff served as director of congressional affairs (2000–2001) and then deputy executive director (2001–2005) of the Republican Jewish Coalition.

https://en.wikipedia.org/wiki/Eric_Fingerhut

Eric David Fingerhut (born May 6, 1959) is an American politician, attorney, and academic administrator, serving as the President and CEO of The Jewish Federations of North America (JFNA).

While representing Ohio's 19th congressional district in the 103rd Congress, Fingerhut was the co-sponsor of four bills in support of Israel. Including:

H.R. 1407 confronted a boycott of the State of Israel by aiming "To prohibit government-to-government and commercial arms sales to any country that is participating in or cooperating with the boycott of Israel by Arab countries."[7]

H.R. 3656 unequivocally voiced its support for Israel seeking to "restrict sales and leases of defense articles and defense services to any country or international organization which as a matter of policy or practice is known to have sent letters to United States firms requesting compliance with, or soliciting information regarding compliance with, the secondary or tertiary Arab boycott."

Very quickly after beginning his tenure as CEO of Hillel International, the organization experienced a major controversy. The Hillel chapter at Swarthmore College declared itself an "Open Hillel," choosing to welcome all guest speakers and student organizations, whether or not they support Zionism.[9] Fingerhut responded, stating "Let me be very clear – "anti-Zionists" will not be permitted to speak using the Hillel name or under the Hillel roof, under any circumstances."