YYltd

Eng. Yaakov Yerushalmi

Founder and Owner of YYltd

Email: yeru@yyltd.net

Eng. Gilad Stein

Partner and the chief engineer of YYltd

Email: Gilad@yyltd.net

Eng. Roee Yosef

Senior Engineer, Protective design expert

Email: Roee@yyltd.net

Eng. Nachum Schwartz

Project Manager, Chief Designer

Email: Nachum Schawartz

Eng. Tommy Bornstein

Numeric Analysis expert

Email: tommy@yyltd.net

Eng. Aviel Sade

Project Management, Numeric analysis

Email: aviel@yyltd.net

During 1975-1979 he served as the head of the Protective Structure and Geotechnics branch
of the IDF Corps of Engineers.

Since 1979, Eng. Yerushalmi has been a senior consultant on numerous government and
private projects.

Eng. Yerushalmi’s experience includes detailed design and implementation of over 600
physical security projects (structures and installations to resist the effects of war and terror
attacks) worldwide. Eng. Yerushalmi serves as a permanent consultant to numerous Israeli
government agencies. Eng. Yerushalmi has vast experience in the protective design
of data-centers (over 20 data-centers).

Mr. Gilad Stein is a graduate of the "Technion" in Haifa and holds a B.Sc. degree in Civil
Engineering, specializing in dynamic analysis of structures.

Mr. Stein has 17 years experience in the field of protective structures, combined with a
degree in Civil Engineering brings along a high level of security engineering. Eng. Stein’s
experience includes detailed design and implementation of over 200 physical protection
projects (structures and installations to resist weapon effects).

Mr. Yosef is a graduate of the "Technion" in Haifa and holds a B.Sc. degree in Civil
Engineering, specializing in structural engineering, expert in dynamic analysis.

Mr. Yosef has 15 years of vast experience in the protective
design of critical structures.

Business Manager MBA
Uptime Institute Graduated:
ATD Accredited Tier Designer 2015
AOS: Accredited Operational Specialist. 2019

Professional experience:
1993-2000 HVAC designer
2000-2005 Project Manager
2005-2019 Chief Designer and Commissioner of Datacenter
facilities and infrastructures which are all over thousands
of square meters of white floor.

Mr. Bornstein holds B.Sc. degree in Civil Engineering, M.Sc. structural engineering in Ben
Gurion University department of protection technology. Mr. Bornstein is an expert in numeric
analysis of complicated models.

Mr. Sade holds B.Sc. degree in Structural engineering in Ariel University. Mr. Sade has experience in project management, protective design of Data Centers and numeic analysis.