---
category: Private Organization
location: Israel
summary: Medan Computers Ltd. was the Israeli franchise of Honeywell, staffed entirely
  by Israel Defense Forces reservists and computer experts, which was involved in
  the implementation of PROMIS software in Guatemala.
tags:
- Organization
- Private
- Technology
- Israel
---

[Medan Computers Ltd.](/organizations/medan-computers-ltd/) was the [Israeli](/places/israel/) franchise of [Honeywell](/organizations/honeywell/). All its technicians were [military intelligence](/places/israel/) reservists and computer experts. They were involved in the implementation of the [PROMIS](/programs/promis/) software in [Guatemala](/places/guatemala/).[^1]

While the technicians at [Medan Computers Ltd.](/organizations/medan-computers-ltd/) were aware of the [PROMIS](/programs/promis/) program, they were not informed about the "trap door" functionality. When [Medan Computers Ltd.](/organizations/medan-computers-ltd/) pointed out that their computers would not be suitable for the [PROMIS](/programs/promis/) implementation in [Guatemala](/places/guatemala/), they were arranged to act as brokers for [IBM](/organizations/ibm/) equipment in [Guatemala](/places/guatemala/).[^1]

[^1]: Ben-Menashe, Ari. *Profits of War: Inside the Secret U.S.-Israeli Arms Network*. TrineDay, 1992.