What departments does Rennert International have?

Rennert International has employees across 3 departments including Education, Business Development, Program & Project Management.

What is the largest department at Rennert International?

The largest department at Rennert International is Education with 3 employees.

Where are Rennert International employees located globally?

Rennert International has employees across 3 continents and 4 countries including United Kingdom Of Great Britain And Northern Ireland, United States Of America, Panama, Argentina.

How has Rennert International's team size changed over time?

Rennert International's team has decreased from approximately 49 to 44 employees based on available data.

Rennert International Employee Directory

Education Administration ProgramsNew York, United States51-200 Employees

Rennert International is a privately held firm focused on language education and communications, founded in 1973 by Cesar Rennert and based in New York. The company provides translation and interpretation services, English and other language instruction, teen language programs, and ESOL teacher training. It serves a global client base, helping individuals and organizations manage language learning and cross-cultural communication needs. Positioned within the education administration programs field, it is a founding member of the International Association of Language Centres, reflecting commitments to quality and ethics.

The firm operates from Berkeley College in Midtown Manhattan, placing it in the heart of New York City. In 2024, Rennert International received multiple academic recognitions, including awards from Columbia College and Rochester Institute of Technology, and recognition as a Lander University Junior Fellow.

Rennert International Global Highlights

North America
92

United States Of America
91
Panama
1

South America
2

Argentina
2

Europe
1

United Kingdom Of Great Britain And Northern Ireland
1

Rennert International's Leadership

A. C.
Deputy Head Of Teacher Training
Mobile Phone
Email
C. K.
Associate Director Of Business Development
Mobile Phone
Email
L. D.
Director Of Studies
Mobile Phone
Email
L. K.
Director Of International Special Programs
Mobile Phone
Email
M. R.
Director
Mobile Phone
Email
M. R.
Teen Programs Director
Mobile Phone
Email
R. K.
Director
Mobile Phone
Email
S. Y. P.
Director Of Foreign Language And Evening English Programs
Mobile Phone
Email

Rennert International Employee Metrics

100%

50%

0%

2026

2025

Education
Business
Business Development
Administrative
Arts & Design
Other

Contact profiles from Rennert International

Name

Title

Contact

Location

Last Update

C. C. B. S.
Certified English As A Second Language Teacher
Mobile Phone
Email
United Kingdom, England
Nov 12, 2025
I. B.
Project Coordinator
Mobile Phone
Email
Oct 23, 2024
G. B.
Admissions Manager/ Consultant/ Trainer
Mobile Phone
Email
Jun 19, 2026

Frequently Asked Questions

What is Rennert International known for?

Rennert International was founded in 1973 and operates in the Education Administration Programs industry. You can contact Rennert International's main corporate office by phone at

+1-212-867-****

. Explore Rennert International's company overview page for more information.

What is Rennert International's most common email format?

Rennert International employees' email format typically follows the pattern of FLast@rennert.com. Trying to find reliable and up-to-date employee contact data? Find more Rennert International email formats with LeadIQ.

How many employees does Rennert International have currently?

Rennert International has approximately 72 employees as of July 2026. These team members are located across 3 continents, including North America, South America and Europe.

Who are Rennert International's key employees and leadership?

As of July 2026, Rennert International's key employees include:

Deputy Head Of Teacher Training: A. C.
Associate Director Of Business Development: C. K.
Director Of Studies: L. D.
Director Of International Special Programs: L. K.
Director: M. R.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

Everything for prospecting,
in one platform.

What you can expect from LeadIQ:

B2B data verified in real-time
Sync data to your CRM, & add it to an outreach sequence in one click
Integrations with your tech stack for optimal efficiency
A patented AI cold email generator
Account & contact-level job change tracking

Rennert International Employee Directory

Find Rennert International employees' phone numbers or email addresses

Name search is limited — try advanced search instead