what we do


Offering Smart Solutions

ONcera combines experience and knowledge to address today’s biggest IT
challenges and meet federal agency business and mission objectives.

Cybersecurity icon


Automate compliance and risk management to streamline enterprise-wide solutions to advance risk posture visibility and improve cyber readiness.

We bring over 10 years of experience defending cyber interests globally and providing advanced capabilities, solutions that are refined across multiple customers, protecting the Federal Government’s most valuable assets.

Our solutions and services ensure an adaptive defense strategy, sustainable threat protection, and a mature security posture.


Agile Development / Devops

Develop effective digital solutions through automation, open performance, insights, and personalization.

ONcera allows federal agencies to improve software development efforts to meet mission and business objectives. For system requirements that need faster build, feedback, and deployment, our team makes it feasible to accelerate and automate at every phase of the delivery lifecycle. Our teams use scaled agile practices and DevSecOps best practices to develop digital environments that are modular, scalable and user centric.

data analytics

Data Analytics

Leverage latest data science methodology to produce new analytic tools and products that support our customer’s scientific analysis, data visualization, and collaboration.

ONcera leverages the latest data science methodology and technology to create products, analytic tools, and prototypes that support collaboration and data visualization. We employ cloud-based solutions and discovery patterns within stove-piped systems to create big data solutions.

cybersecurity icon

IT Transformation & Mobility

Assist our clients to build the IT foundation to transform their digital enterprises.

Our team leverages ITIL-aligned service management practices and enterprise operations to realize service delivery of full lifecycle solutions and services. We combine proven methodologies, technologies, and business processes for all types of modernization initiatives, including the delivery of secure, mobile applications for military and civilian agencies, enabling anytime/anywhere access.


client platform migration

Migrated federal
users to Office 365

45% arrow down icon

Decreased IT infrastructure
costs by consolidating
modernizing data centers


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Supported users
during COVID-19
telework mandates

who we are

The Joint Venture Partners

Conceras, LLC
Status: SBA 8(a) Certified Small Business
Headquarters: Fairfax, VA
Years of Service: 14 Years

Best in Class Contract Vehicles: GSA 8(a) STARS II; GSA IT Schedule 70

Personnel: 50+ Employees; 100% Cleared

Cost Accounting System: DCAA Audited and Approved

Certifications: ISO 9001:2015

SeKON Enterprise, Inc.
Headquarters: Reston, VA
Years of Service: 25 Years

Best in Class Contract Vehicles: NITAAC/CIOSP3 SB – CIOSP3 WOSB – GSA MAS – CMS SPARC SB – PSC IDIQ SB

Personnel: 150+ Employees; 77% Cleared

Cost Accounting System: DCAA Audited and Approved

Certifications: CMMI Level 3



Harvey Nguyen

Conceras, LLC
Name: Harvey Nguyen
Position: President & CEO
Email: info@conceras.com
Address: 11350 Random Hills Road, 8th Floor
Fairfax, VA 22030

With over 15 years of hands-on experience establishing and growing new
businesses, Mr. Nguyen has a well-developed entrepreneurial and operational acumen necessary to continue the success of Conceras. Since he joined Conceras in 2007 as one of its first employees and officers, Mr. Nguyen has played a leading role in defining and shaping Conceras as a successful technology services company in the federal and commercial sectors. Mr. Nguyen became President of Conceras in 2010. During this time, Mr. Nguyen has successfully led numerous capture and business development efforts on several key programs, resulting in solid wins and revenue growth for Conceras in challenging business environments.

As CEO of Conceras since 2013, Mr. Nguyen is responsible for the company’s day-to-day operations and the strategic direction of the company as well as continuing his support and management of the company’s capture and business development efforts. These newer responsibilities include such diverse matters as formulating business growth strategies, establishing and monitoring Conceras’ short-term and long-term growth goals, planning and building organizational development and corporate governance policies, establishing and implementing key business strategies which focus on strategic growth and expansion into strategic market areas, business operations, contract performance, human resources, corporate finances and establishment/management of new joint venture entities.

David Slingbaum

David Slingbaum
Vice President – Finance

About David

Years in the industry: 20

Education: Bachelor of Science from Drexel University, MBA from Tulane University

What is your greatest professional achievement? I haven’t done it yet.

What does SeKON mean to you? A company that does meaningful work, and supports the growth and wellbeing of its employees.

How do you think your colleagues would describe you? Friendly, reserved, and pedantic.

Favorite quote: “Well done is better than well said.” – Benjamin Franklin

Favorite color: Zaffre blue

Favorite Movie: The Last Samurai

Fun fact: I’ve lived in the SE, NE, Mid-Atlantic, Gulf Coast, and West Coast of the United States.

Alison Rosen

Alison Rosen
Vice President

About Alison

Years in the industry: 29

Education: Bachelor of Science from State University of New York College at Brockport

What is your greatest professional achievement? Creating a people-first for culture of exceptional performance that champions risk takers, creators and disrupters.

What does SeKON mean to you? I’m able to do my best work at SeKON. I believe in our mission and SeKON gives me the power to significantly affect the results.

How do you think your colleagues would describe you? Passionate and demanding

Favorite quote: “Be careful of the toes you step on today, for they may be attached to the butt you are kissing tomorrow.”

Favorite color: Purple… the color of royalty

Favorite movie: Terms of Endearment

Fun fact: I was a social worker prior to joining the IT industry.

Kelley Dionne

Kelley Dionne

About Kelley

Kelley brings with her 19 years of experience in federal contracting with the Department of State (DOS). While at DOS, Mrs. Dionne managed multi-million-dollar telecommunication projects across the globe for many years before moving into a leadership position and managing a large geographically dispersed team covering multiple disciplines of information technology related work. Mrs. Dionne is an accomplished and forward-thinking management leader specializing in the administration of government contracts. She has a talent for providing exceptional leadership to drive program and project excellence. Mrs. Dionne is responsible for the management of all of Conceras’ contract programs, both prime and subcontract.

Mrs. Dionne earned a B.A. in English from James Madison University. Mrs. Dionne also holds a Project Management Certificate from the University of Mary Washington College of Graduate and Professional Studies and an ITIL Foundation Certification from Axelos/Peoplesoft. In addition, Mrs. Dionne completed her Project Management Institute (PMI) Project Management Professional (PMP) certification.

Thomas Woodward

Thomas Woodward

About Tom

Tom brings 30 years of demonstrated information technology architecture and engineering leadership experience in both the private and public sector, including 17 years in the civilian and intelligence communities.

Mr. Woodward founded the company to be client-focused and mission-focused. Working directly with customers, he has a thorough understanding of the challenging and complex IT problems facing the Federal Government today. He has successfully designed and implemented several solutions and products, providing clients with the following benefits: lower total cost of ownership, high performance computing, automated lifecycle management and monitoring, data center consolidation and optimization, high availability and disaster recovery. Utilizing his first-hand knowledge of customer decision points, he has successfully identified, developed, and captured business opportunities for Conceras. With his personal willingness to do whatever it takes to make the client successful, he has established a high-level of credibility and IT expertise for the company in the civilian and intelligence communities.

Mr. Woodward plays a key role in setting the strategic objectives for the company. He develops and automates standards and strategies in marketing, operations, and finance to make certain the management of the company is effective at meeting the corporate objectives. He has defined and developed a culture for Conceras’ workforce to grow, to be challenged, and to make meaningful contributions to the customer and Conceras.

Mr. Woodward holds a B.S. in Decision Sciences & Management Information Systems from George Mason University.

who we work with


ONcera Partners

We partner with clients to modernize, automate and protect Health IT
and federal enterprise systems. We have a long history of collaborating with government civilian agencies and DoD with our portfolio of high-end solutions in IT, advanced analytics, and Cyber Security. We provide solutions to a full spectrum of federal agencies including Department of Navy, Department of State, United States Marine Corps and Federal Bureau of Investigation.

Marine Corps

department of state logo

FBI logo

department of the navy logo

defense health agency logo

NIH logo


CMS logo

CDC logo

who we work with

Contract Vehicles

GSA schedule IT 70



StarsII 8a

contact information

Get in touch

Address: 11350 Random Hills Road,
8th Floor
Fairfax, VA 22030

Website: www.oncera.net

SBA 8A logoIso 9001 logoCMMI dev3 certification


ONcera targets 54151X NAICS Series Opportunities with
$15M and Below and $27.5M and Below Size Standards.