About
Sustainable Solutions for a
Thriving Global Marketplace
Teresa Global LLC was established with the vision of fostering stronger connections between the United States and Asian countries through sustainable management practices. Our focus areas include international trade, business coaching, and IT services.
We are committed to driving innovation, supporting digital transformation, and empowering businesses to thrive in the global marketplace. By combining expertise in technology and sustainability, Teresa Global LLC helps organizations create long-term value while advancing responsible growth.













KimViet Ngo Barringer
President / CEO
Kimviet Ngo Barringer, the founder and President of Teresa Global LLC, is in a unique position to partner with organizations interested in expanding their interests into Asia. Kim holds two bachelor’s degrees from George Mason University where she was on the Dean’s List and a member of the Phi Kappa National Honor Society. Kim is also pursuing a master’s degree in Sustainability at the University of Maryland Global Campus. Kim has developed close working relationships with a wide variety of people, companies and project owners related to trade and business training in North and South America, Asia and Europe. She is a member of the Global Chamber and holds Certification in Global International Trade. Kim is an active member of the Virginia Asian Chamber Commerce, an organiztion with 145,000 Asian-owned businesses in Virginia and members from 8 other states. This helps her to build networks and establish relationships with companies and state governments.
As Co-Founder and Vice President of Teresa Charities Inc., Kim brings over 30 years of experience working with commercial, government, and charitable organizations across Vietnam and neighboring countries. She has developed strong relationships with diverse stakeholders involved in sustainable management, agriculture, ecotourism, eco-products trading, high-tech agricultural solutions, and philanthropic initiatives. Kim’s extensive knowledge and access to both business and government networks uniquely enables her to provide quality support to companies expanding into Asian and U.S. markets. Her longstanding personal commitment to philanthropy and her genuine dedication to the people in the region have earned her trust and credibility—an invaluable asset cultivated over decades.

Bruce Barringer
Vice President / COO
Bruce Barringer has over 30 years of experience in the Space industry, most of it NASA related. He is presently a Principal level Systems Engineer with detailed experience with both the Space and Ground segments. Mr. Barringer’s last 3 major projects include involvement with the Suomi NPP mission, the DSCOVR satellite and the James Webb Space Telescope. He serves as a senior level spacecraft Systems Engineer with a focus on electrical systems and issues. He was also on the launch support team. Mr. Barringer is currently a senior member of the Flight Operations Team (FOT) at the Space Telescope Science Institute. The FOT will be responsible for operating the JWST mission during and after launch for the duration of the mission. Because of his dedicated and quality work, Mr. Barringer has been awarded several NASA accommodations, both group and individual.
Mr. Barringer has an Engineering Bachelor’s degree and 2 Master’s Degrees all from the Georgia Institute of Technology. He also completed his course work toward a PhD. Using his engineering background, he has been involved with international business for many years as a consultant working with private and government clients. As a Vice President of Teresa Global LLC, he has key business development responsibilities and helps with international market research and analysis. Recent areas of focus include projects related to applying high technology to agriculture, solar farm technologies, technology driven affordable clean water systems, and global Information Technology services.
In his free time Mr. Barringer serves as an adviser to Teresa Charities, Inc, helping in fundraising activities that support the poor in Vietnam.

Ron and Connie von Perlstein
Consultants
(Café International Foods LLC)
Ron has held many leadership positions in all sectors of the food industry, including leadership management positions, brand development and management, strategic planning, creative marketing, innovative sales, customer service, logistics, experience in both broad line and retail distribution channels, as well as food manufacturing, warehouse management, purchasing, budget analysis and business social philanthropy.
Connie has held many leadership positions in the banking industry. Connie followed up a successful 10 year management career in the banking industry, with a successful career as an Advertising Account Executive. She has a natural ability to help her clients find creative solutions to bring awareness to their brand. She is dedicated to developing business relationships with manufacturers, brokers, distributers and import and export companies.

David Hawkins
Director of Business Development
David Hawkins is proactive self-starter with over 20+ years of experience as a sale, financial and business development advisor for small businesses, banking and financial institutions. Excels in providing strategic and tactical planning, while exceeding top performance goals in operational and servicing objectives.
He has leadership proficiency in business performance, financial analysis and metrics, negotiation, and conflict management. David establishes and maintains exceptional relationships with clients and strategic alliances with business partners.
David has a passion for strengthening communities and developing their citizens. He attended Howard University where he had studied political science and economics. He serves as a board member of the Greater Washington Boys and Girls Club, Lydia’s House and the Greater Washington Community Foundation’s grants committee for Montgomery County, MD.

Phuong Tran Hong
Managing Director in Vietnam
Ms. Phuong is self-motivated and reliable with excellent customer service skills. She has experience implementing the intricate operational details involved in the running of a small business. With the knowledge gained while working on her Master’s degree in the US, she is a founder of a successful online company that sells cosmetics and related products.
Ms. Phuong manages the Teresa Global education project including budgeting, marketing, and recruiting. In this capacity, she serves as a liaison between universities, institutes, entrepreneurs, and Teresa Global LLC. She also organizes business trips to the US for Vietnamese companies and business delegations.
Ms. Phuong was President of the Vietnamese Student Association in the Washington DC area from 2015 – 2016. She organized the program “I love Vietnam” at the 2015 Vietnamese Heritage Festival which attracted hundreds of students from over 30 states in America. She also led the “Support Team” for the Vietnamese Embassy that helped with several events including “The 20th year Anniversary Vietnam – US Relations” and the “Annual Gathering in the US for Vietnamese Students”.
In her free time, Ms. Phuong enjoys participating in charity activities. She led a fund-raiser program to support poor students and the elderly in Vietnam, served as a liaison for officer trips to Vietnam and the US, and served as an analyst for projects and program activities in the US and Vietnam.