Palestine

I work with a group that launched a campaign around the boycott of an
Israeli real estate developer named Lev Leviev several years ago. He both
builds settlements in the Occupied Territories ('67) and is a real estate
developer here in NYC, owning many large pieces of property with his former
business partner, Shaya Boymelgreen. We are currently in a research phase of
our campaign and trying to look into other targets along the same lines:

companies or individuals that develop, buy or sell property or engaged in
construction and contracting in NYC and either in the Occupied Territories
or in Israel proper (developers in Israel proper are highly likely to be
developing in land that was once Palestinian at some point).

WhoProfits, a database maintained by Israel activists on settlement
activity, offers this list of companies that build on Palestinian land:
http://whoprofits.org/Involvements.php?id=grp_inv_settlement#grp_inv_settlement_2

Other than just going through and starting to google each one of the people
on that list, any other tips or thoughts about how to approach this topic?
Any help would be appreciated. Thank you!

I am interested in learning more about earlier forms of Zionism that were radical, leftist, and pursuing just solutions to the protection of the Jewish people that don't trample the rights of others, as is currently happening in Israel. What leftist/socialist/marxist Zionist groups used to be active in the US (or anywhere) that proposed something other than the state of Israel as a homeland for the Jews, and what happened to them? What is the history of alternative Zionist movements? Are there forms of Zionism that aren't inherently based on the displacement/discrimination against other groups, as is happening in Palestine now? Are there Zionist groups operating now that have rejected Israel's policies of human rights abuses? How have current alternative Zionist groups articulated solutions to the current crisis in Israel/Palestine?