What departments does Rennert International have?

Rennert International has employees across 10 departments including Education, Business Development, Marketing, Sales, Finance.

What is the largest department at Rennert International?

The largest department at Rennert International is Education with 16 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
90

United States Of America
89
Panama
1

Europe
1

United Kingdom Of Great Britain And Northern Ireland
1

South America
1

Argentina
1

Rennert International's Leadership

C. R.
President
Mobile Phone
Email
G. H.
Executive Assistant To The President
Mobile Phone
Email
E. H.
Exec Vice President
Mobile Phone
Email
A. C.
Deputy Head Of Teacher Training
Mobile Phone
Email
M. J. A.
Director Of Studies
Mobile Phone
Email
V. P.
Director Of Studies
Mobile Phone
Email
J. B.
Director, Foreign Language Studies
Mobile Phone
Email
N. L.
Academic Director
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 Info

Location

Last Update

C. S.
Instructor
Mobile Phone
Email
United StatesNew York
Jul 26, 2024
D. N.
English Second Language Teacher
Mobile Phone
Email
United StatesPennsylvania
Apr 23, 2025
D. M.
Accounting Associate
Mobile Phone
Email
UNITED STATES
Mar 08, 2023
E. C.
Administrator
Mobile Phone
Email
UNITED STATES
Mar 08, 2023
E. D.
English Instructor
Mobile Phone
Email
United StatesNew York
Feb 11, 2026
H. L.
Assistant Guide
Mobile Phone
Email
UNITED STATES
Mar 08, 2023
I. B.
Project Coordinator
Mobile Phone
Email
Oct 23, 2024
L. M.
Assistant Project Coordinator
Mobile Phone
Email
United StatesNew Jersey
Oct 23, 2024
M. H.
Spanish Teacher
Mobile Phone
Email
UNITED STATES
Mar 08, 2023
R. H.
Devops Engineer
Mobile Phone
Email
UNITED STATES
Mar 08, 2023

Frequently Asked Questions

What is Rennert International known for?

Rennert International was founded in 1973 operates in the Education Administration Programs industry. The company's main headquarters is located in 12 East 41st Street 5th Floor New York, New York 10017 United States; you can contact the 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 . 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 June 2026. These team members are located across 3 continents, including North AmericaEuropeSouth America.

Who are Rennert International's key employees and leadership?

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

President: C. R.
Executive Assistant To The President: G. H.
Exec Vice President: E. H.
Deputy Head Of Teacher Training: A. C.
Director Of Studies: M. J. A.

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