All combat brigades in the IDF have a unit with improved weaponry and training used for reconnaissance and special forces missions, trained to use advanced weapons and reconnaissance technology, as well as hand-to-hand combat. Historically the brigades used to only have one company-sized unit outfitted to do this job, known as Palsar (Hebrew Contraction of: פלוגת-סיור, Plugat Siyur (singular) / Plugot Siyur (plural), "Reconnaissance Company"). Although the Palsar are mostly oriented at battlefield support (which is their raison d'être), many have participated in special operations during recent years. All infantry units as well as some armored units have Palsar.

While in the past there were differences between the siyur units, due to the experiences of the past decades the IDF is now consolidating them into larger units with many different capabilities: battalion-sized units called Gadsar (contraction of Gdud siyur, "Reconnaissance battalion"). Each Gadsar is made up of three specialized Plugot (companies): Demolitions (Plugat Heil Handasa, or Palhan), Reconnaissance (Plugat Siyur, Palsar) and Anti-Tank / Heavy Weapons (Plugat Neged Tankim, or Palnat).

This is part of the Yatah ("Low-Intensity Combat Unit") Project. This project aims at changing the Reconnaissance battalions into specialized urban counter terror units, that are specifically trained and equipped to operate in current combat situations. It must be recognised that the Palsar of these battalions were once considered to be of superior quality in comparison to the other two companies but now all are of rather equal status.

Other sayarot are larger units, operating under corps and commands. There are several battalion-size special forces units which report directly to regional, functional (navy/air-force) and the general commands. The best known of these are Sayeret Matkal, Sayeret Golani,  Shayetet 13 and Yehidat Shaldag.