Our Mission

CoSolutions’ mission is to build leading edge technology solutions and provide high-quality and trusted services that deliver ROI to our Federal and commercial clients. We will:

  • Understand our customer requirements

  • Deliver what we promise

  • Do what serves our clients best

Our relationships with customers and partners will be based on trust and honesty. And we will value our people.

Our Expertise

CoSolutions, Inc. is a technology company totally devoted to customer satisfaction in a spirit of team work and collaboration. Our core competencies include:

  • Help Desk and Enterprise Service Desk Support

  • IT Service Management (ITSM)

  • IT Operations Support

  • Cyber Security Support

  • Software / Systems Engineering

  • Program Management Office (PMO) Support

  • Training / Curriculum Development

  • Facilities Support, Management and Security Services

Our Approach

CoSolutions brings creativity and innovation, quality approaches, disciplined processes and pioneering technical and management expertise to our client projects as follows:

  • Implementation of industry best practice approaches

  • Turn-on-a-dime flexibility and responsiveness

  • Expert in-house staffing and recruiting capability

  • Track record of highly satisfied customers

  • Consistently rated as top performer for our work

  • Executive commitment and visibility for every project undertaken

CoSolutions prides itself on fostering an agile environment, able to quickly and effectively mobilize the right people, skills and technologies to improve customer operations and performance at reduced costs – the key bottom line business drivers in any Government or commercial organization.

Our Quality Commitment

CoSolutions, Inc. will ensure client satisfaction by providing the highest quality services that meet our client’s and all other applicable requirements.  Management is committed to continually improving the quality management system to ensure client satisfaction.

Executive Team

The CoSolutions’ executive management team is made up of seasoned individuals experienced in the federal contracting arena who seek to define CoSolutions as a top-tier service provider delivering the highest quality IT support services to the Federal Government.

Ingrid Constantine

Ms. Constantine is the CEO of CoSolutions, Inc. and has primary responsibility for shaping the strategic direction of the Company which includes overseeing revenue growth and retention and overall business direction for the Company. Ms. Constantine has over 25 years of business development, marketing and public relations expertise in the technology and software industries in the Federal and commercial marketplaces.

Ms. Constantine has led and overseen the Company’s Business Development, Marketing and Partner Relations efforts. Along with fostering positive relations with the Company’s Government customers, she has developed positive relationships with a large cadre of high quality and trusted strategic partners for the Company that has resulted in new contract awards, increased revenue and positive corporate exposure.

CoSolutions’ steady growth and success has been fueled by Ms. Constantine’s ability to successfully articulate and direct a strategic vision for CoSolutions as a leading edge and customer-service focused federal IT contractor.

Ms. Constantine has a B.S. in Business Management from The University of Maryland, College Park, MD.

Walter Constantine
President and Founder

As President and Founder of CoSolutions, Inc. since 1998, Mr. Constantine has primary oversight responsibility for the Company’s overall operations and infrastructure as well as the strategic technology direction for the Company. Mr. Constantine has over 25 years of proven executive and program management experience, all within the IT and consulting services sectors for both Government and commercial clients.  Mr. Constantine’s technology strategy, direction and vision for CoSolutions has been one of the Company’s most valuable assets and has contributed in allowing CoSolutions to scale seamlessly as the business grows.

Early in his career, Mr. Constantine spent 10 years in software engineering and software project management.  He also taught courses in APL programming for actuaries in the insurance and financial industries.

In his role as President, Mr. Constantine has demonstrated success growing and managing a multi-faceted federal IT contracting firm through his high-level oversight of CoSolutions. He has developed and executed operational strategies and continual process/performance improvement methodologies to promote organizational growth and efficiencies as well as optimal utilization of emerging and leading-edge technologies benefiting not only CoSolutions but clients as well.

Mr. Constantine has a B.S. in Computer Science from The University of New Brunswick in Canada and an M.S. in Computer Science from The Johns Hopkins University, Baltimore, MD.

Donald Plebuch
Senior Vice President

Mr. Plebuch is the Senior Vice President of CoSolutions, Inc. and has primary responsibility for business development and capture, contract transition management, operational / program oversight and corporate quality management against industry standards and best practices. Mr. Plebuch brings over 35 years of enterprise level IT operations and maintenance, applications development, program management, and business development and capture working all within the federal government contracting arena.  His early career supported command, control, communications, and computing (C4) and modeling and simulation application development in support of spacecraft, satellites, and high energy laser systems.  He transitioned to support worldwide intelligence and ERP systems operations before advancing to executive level program management and business development activities where his leadership has realized significant growth in corporate revenues.

Mr. Plebuch brings deep and wide expertise implementing successful corporate growth strategies and performance management innovations that have broadened CoSolutions’ customer base and gained infrastructure operational efficiencies as a win-win-win for the Company, our customers and our valued business partners.

Mr. Plebuch has a B.S. in Fisheries Management (Statistics/Population Dynamics) from University of Washington in Seattle, WA and graduate studies in Mechanical Engineering at University of California, Long Beach, CA.

Clement Ryan

Mr. Ryan is CoSolutions’ Controller and is responsible for driving the Company’s financial performance and providing financial direction and guidance.  He is directly involved with corporate financial planning and analysis as well as overseeing the Company’s day-to-day finance and accounting activities, ensuring compliance with Federal Standards, CAS, FAR, and DFARS regulations.

With over 15 years of Federal Contract finance & accounting experience, Mr. Ryan has managed and supervised all corporate financial functions including budgeting, financial reporting, forecasting, statistical analysis, project cost accounting, and proposal pricing.  His financial acumen and expertise has consistently led to improved financial performance and increased market value for the high-growth Federal contractors for which he has worked.

Mr. Ryan has a B.S. in Commerce from the University of Virginia and is a Certified Public Accountant licensed with the Virginia Board of Accountancy.

Nancy Nguyen
HR Director

Nancy Nguyen is CoSolutions’ Human Resources Director and a member of the Company’s senior executive leadership team. Ms. Nguyen oversees, manages, and has purview over all HR and Recruiting functions for the company.

Highly experienced in the federal contracting HR arena, Ms. Nguyen has over 20 years of comprehensive HR experience overseeing companies from 10 employees to 12,000, with multiple domestic and international office locations. Her areas of expertise run the gamut of the HR spectrum: Compliance, Recruiting, Benefits, Employee Development, Compensation, Employee Relations, and Mergers & Acquisitions.

As she has done successfully throughout her career, Ms. Nguyen will guide her team to align CoSolutions’ HR programs with the Company’s aggressive growth goals, all while continuing to focus on providing the highest quality and most competitive offerings to our workforce.

Certifications and Designations

Socioeconomic business certifications and designations help our Government customers and commercial partners meet their Small Business goals while leveraging CoSolutions’ broad expertise, demonstrated performance and scalable corporate infrastructure.

CoSolutions is an SBA-approved Woman-owned Small Business (WOSB). Under the WOSB program, sole source directed awards are permissible for WOSB Qualifying NAICS include 541511, -512, -513, 519, and -611. A full list of qualifying NAICS can be found here: https://www.sba.gov/document/support–qualifying-naics-women-owned-small-business-federal-contracting-program

[NEW] CoSolutions (through our SBA All Small Mentor Protégé Program (ASMPP) Joint Venture, 1st Choice Tandem LLC), is an eligible 8(a) and prime awardee of the GSA 8(a) STARS III GWAC (Contract # 47QTCB21D0336). 8(a) STARS III has a 5-year base period with one 3-year option period. The ordering period began on July 2, 2021. 8(a) sole source directed awards are permitted. For more information, please go to http://www.cosolutions.com/our-work/gsa-8a-stars-ii/

CoSolutions (through our SBA All Small Mentor Protégé Program (ASMPP) Joint Venture, 1st Choice Tandem LLC), is an eligible HUBZone entity. For more information about 1st Choice Tandem (also an SBA-approved 8(a) entity), please go to:  http://www.cosolutions.com/about-us/1st-choice-tandem/

Joint Ventures

CoSolutions’ joint venture partnerships take advantage of each members’ industry strengths, experience and past performance in order to provide our customers with the highest quality service and support as a single combined entity.

1st Choice Tandem LLC is an SBA-certified All Smalls Mentor-Protégé Program (ASMPP) joint venture providing high quality, mission critical IT, program and administrative management support services to Federal agencies. CoSolutions is proud to “pay it forward” by being an SBA Mentor to our 8(a) and HUBZone Protégé, LBO Technology, LLC.


CEJV, LLC is an 8(a) joint venture formed by CoSolutions and its SBA mentor to provide the Federal Government with high-quality, information technology (IT) support services.

Pegasus Alliance LLC is an SBA-certified 8(a) joint venture providing high quality, mission critical IT and program management support to Federal agencies.  Pegasus Alliance combines the capabilities, resources and infrastructure of each of its members to bring exceptional value to its Government customers.

Contact Us

Thank you for your interest in CoSolutions! Please contact us using any of the methods below or send us a message here and we will respond to you promptly.

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