"By this letter we certify that the company RIVERO & COOPER, Inc., represented by its president Mr. Ruben Rivero has maintained personal relationships with this business in a responsible manner and punctual in its deliveries, we may amply recommend it." Adoldo Escalona. Plaza Las Américas Commercial Center, suite S-55. Caracas, Venezuela, July 17, 2009. “I highly endorse the work carried out by Ruben. As my CCNA instructor, he proved to be a very skillful and intelligent person, he demonstrated that he thoroughly knew the theoretical and practical knowledge within the course objectives, effectively attending to the students' questions and concerns. I really enjoyed it when he was teaching the lessons because he found a way to explain everything in a way that any one with no experience in Cisco Networking would understand, and that is really important when it comes to teaching. Any organization in general would be lucky to have Ruben aboard.”   Eloy Pascal. Apex Systems, contracted by Citigroup. Irving, Texas, 20 de julio de 2009 “Ruben is an excellent researcher. I contacted him in regards to the Immigration policy in Venezuela and other countries in the Caribbean and he provided extensive information for our client. His best qualities are great results, punctuality and great integrity. Excellent work!”   Liliana Lezcano Frutos. Abogados, Consultores y Traductores, S. A. Asunción, Paraguay, 24 de julio de 2009

“I am not surprised to see all Ruben has managed to do so successfully since we studied together at the United World College in New Mexico. Ruben has the energy, passion and ability to turn an idea into reality and always with a smile and while encouraging others to do the same.”(Tal Oron Cohen, A2ZMarketing, Ithaca NY)