OSI Testimonials | Washington virtual office space | DC | OSI Offices

Washington D.C. Virtual and Full Time Office Space.
Thousands of customers have trusted their business with OSI.

And we are proud to have served them.
“For more than two decades, Jack Pearce and OSI Inc. have provided excellent professional service to my firm, Lasley & Associates. With the assistance and professional service of OSI, I have been able to maintain a vibrant criminal law and civil rights practice. I have advanced several major civil and human rights initiatives – especially the Height-Mandel (Tambo) leadership institute for civil and humanitarian rights, and Houstonian jurisprudence. Thanks Jack.”
Michael Lasley Esq.
“OSI has met the business needs of my law practice for almost 15 years. The office services are both comprehensive and reliable. The staff is well-trained and unfailingly courteous The handling of the mail and deliveries is dependable. My clients have commented favorably on the facilities and well-appointed offices.”
Chris Leflore Esq.
“Several years ago I retired from my full time solo private practice as a psychologist in Washington, D.C. and wanted to keep my license to practice active but only wanted to have office hours on a very limited part time basis. I finally found just the kind of flexible office hours and service arrangements that fit my needs perfectly and provided as many of the additional office support services that I either wanted or need for my own particular needs at a very reasonable cost. OSI and myself work worked out an office service plan that fit my needs perfectly. I have been a very satisfied customer with their services and would recommend OSI to anyone needing part time or permanent office services.”
Joseph H. Quintano, Ed. D. Psychologist
“OSI has been an integral part of our construction business over the past 5+ years. The team has always been responsive to our needs and we will continue to partner with them as extended members of the aztec construction LLC family." "
Aztec Construction Patrica Moore, President.
““I have performed European and African international law, have had an office presence in the K Street Corridor since 1976, and have used OSI for over 15 years because it has provided by far my best experience." "
John Floyd III, Esq
"OSI has been instrumental in building my psychology practice for nearly 10 years. I started with hourly office use; graduated to a shared office space; and for the past few years have my own private full-time office. The quality and array of services along with the flexibility of plans are invaluable."
Diane Kern, Ph.D. Licensed Psychologist
“As a clinical psychologist, I can say that OSI provides exactly what I need . They provide great locations, professional office suites, flexibility, dependability, good friendly professional service with individualized attention, and the best rates in Washington, DC. This is why I have been with them for over 20 years.”
Sincerely, Marcus M. Mottley, Ph.D. Executive Coach & Organizational Consultant
"Saffold abd Associates has been a long time (10+ years) and loyal customer of OSI. The virtual office model was great while we were building the business and clientele. Once we outgrew the virtual office model we decided to rent full time offices on the 1629 K Street 3rd floor suite. The offices are well-maintained and cleaned daily with a professional cleaning service. The ladies at the front desk make our client feel welcome and are excellent at receiving evidence and payments from clients. Finally, the location (Farragut Square) and amenities (high-speed printer/copier/internet) cannot be beat!" "
David Saffold, President.
"I have used O.S.I Management Inc. services for several years from 2008 to 2010 and again since 2013 for my law office. I always have been very satisfied with the professionalism and responsiveness of the owner, Mr. Jack Pearce and his new manager, Ms. Mumbi Thande. O.S.I. has been flexible and accommodating to my business needs more than once. In 2013, when I re-established my practice, I would not have chosen to go any other place than to O.S.I. - I just called Mr. Pearce and an hour later, I was all set! Their prices are competitive, the team is always kind and available and I never experienced any glitch. A big thumb up for "Jack" and his team! "
Cécile Neuvens.
" OSI has been instrumental in growing my business from a few evening a week to a full time thriving practice. The front desk is approachable and helpful, always willing to help me when I need some administrative support. Mumbi, the office manager, is a joy. She has consistently been attentive to the needs of my practice and invested in helping me establish systems that keep my business working seamlessly. The variety of services OSI has offered me has been invaluable. The office suite is safe and secured at all times of the day, mail is delivered in a timely fashion, and my account is charged automatically on a monthly basis. Even when I am out of the office, I am notified when a package arrives for me. As a sole proprietor, I lack the luxury and assistance of an HR department, IT team, and an administrative specialist. Mumbi, Joseph, Jack, and the front desk have all stepped up at various times over the past two years to ensure I have an office space that works on behalf of me and the people I serve."
Christina Moynihan, MSW, LICSW
" OSI Offices was extremely easy and pleasant to deal with. Their prices were very reasonable and I was able to customize my payment plan so that I was only paying for the services I needed as a small business owner....not to mention the fast internet and wealth of tech services they provide to help me automate many of my processes...Great!!"
David Finberg
"I have been with OSI Management for over 4 years now. I did my research prior to selecting a virtual office company and OSI offered far more favorable options and price points than the other companies of both comparable and larger sizes did. In addition, OSI has the personal touch - from management to office staff - that I love. I have the options of mail services, office rental and also dedicated office space as my ever-changing needs require. I have recommended, and will continue to recommend, OSI Management! "
Melanie Mfume
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