Andy R.,
I've tried to Google and find an answer to your question, but no such luck. The Israeli carriers, of course, have their procedures at every airport. And Israeli airports have the same security system for all airlines.

The problem is that ICTS and its subsidiaries serve a variety of functions. In some airports, like Amsterdam, ICTS handles the entire security checkpoint. So it's a different task than interviews or person/baggage screening.

I've also seen passport stickers that resemble ICTS, but that might indicate some level of screening, not the same as what is conducted for US carriers.

The data points I have are:
1. When Securicor handled the contract for Paris/CDG 2E, the procedure was the same if you were on a US-bound flight on a US carrier (Delta or Northwest) or on an Air France flight to Israel. Passengers on Air France flights to US destinations still had random frisking and bag inspections at the gate, but none of the interviews.

2. Turkish Airlines has a contract security agent for US and Israel flights. Israel passengers get a few questions, and some undergo personal and baggage searches. I think that all USA passengers are frisked and swabbed for explosives.

British Airways--I think--swabs and frisks everyone at Istanbul.

3. For flights to Tel Aviv, Air Canada swabs every person and their hand luggage but there are no questions. Delta and US Airways have walk-through metal detectors and x-ray machines; United has hand wands and visual inspection. No questions.

But it gets a bit more complicated:

Companies like ICTS have different procedures at different airports, even for different airlines at the same airport. Sometimes there are questions, sometimes not. Sometimes everyone gets frisked; sometimes they choose at random. Some have a selectee list, others don't. So the presence of an ICTS or ICTS group security firm doesn't predict what a passenger might expect.

Although they have document checks in Europe, I have never seen passengers questioned or searched when flying Lufthansa or Air Canada from Europe. British Airways has random inspections at the gate (the boarding card reader beeps).

I hope that helps.