Peace Now said in a new report that settlers have founded 32 remote West Bank outposts since 2012, often with tactic government support.
Israel captured the West Bank, East Jerusalem and the Gaza Strip in the 1967 Six-Day War. The Palestinians seek these areas as parts of a future state. Most of the international community considers the Israeli settlements in the West Bank illegal under international law and an impediment to a two-state solution to the conflict.
According to Peace Now, most of the new outposts are farms that aim to take over large tracts of land at the expense of Palestinians and are often publicly funded.
Other cases included the creation of educational institutions and tourist sites that receive funding from their respective government ministries.
"Most of the illegal construction is carried out in an organized manner by officials and with extensive funding from the public coffers," it said.
Scores of settlement outposts dot the West Bank, in addition to over 120 established settlements. Over time, outposts often grow into neighborhoods of nearby settlements or into full-fledged settlements of their own.
Trump's Mideast team is led by figures with close ties to the settler movement. His ambassador to Israel, David Friedman, for instance, recently told the New York Times that Israel has the "right" to annex some of the West Bank.
Both critics and supporters of the settlements say the White House's friendly attitude has encouraged a jump in settlement activity.
Peace Now said the government has retroactively authorized 15 outposts this year and seeks to approve 35 more as part of what it called a major expansion of West Bank settlements.
"Law enforcement authorities ignore the theft of the land and in effect abet this activity," Peace Now said. "Settlers see this correctly as an incentive to build more outposts."
The Defense Ministry and COGAT, the defense body responsible for civil affairs in the West Bank, did not respond to requests for comment.