As many customers look to modernize aging applications, Phacil is bridging the transformation from legacy to new application solutions. With a team of the brightest and best minds, we bridge the gap between technology and user and provide solutions that will endure as technology advances and hardware requirements change.


Ever-present and persistently advancing, cyber criminals, terrorists, and spies constantly attempt to secretly infiltrate Federal information systems. Phacil’s Cyber Warriors design, develop, and deploy defense-in-depth strategies for our customers to actively deter and defend against these threats to national security.



Behind the scenes, the unsung heroes of our Systems Engineering, Integration and Operations (SEI&O) support services maintain high availability and performance of the critical infrastructures Federal agencies rely on.  Trust Phacil for all your System Engineering, Integration and Operations needs. 



Phacil, Veritone and Darklight, have come together to make Artificial Intelligence (AI) work for you. Unlock the power of cognitive computing with the world’s first operating system for AI, transforming and analyzing audio, video, and other data sources in an automated manner to generate actionable insights. Phacil, Veritone & Darklight, the perfect alliance.


Federal agencies rely on critical, demanding applications to serve the public. High availability, security, and performance at lower costs are driving many towards cloud computing. Phacil has partnered with Amazon Web Services (AWS) and Microsoft Azure to host federal government applications & infrastructure.



Phacil’s (patent pending) solution to securely & reliably deliver Big Data mission intelligence where you need it most? Ask us about Corbomite, the future in mission critical, network capable, but not network dependent Big Data delivery. Corbomite is a unique solution, offered exclusively by Phacil with AWS technologies at its core.


Diversity & Inclusion

Phacil cultivates a culture that is both diverse and inclusive. It is a fundamental principle at Phacil and an integral part of our every day operations

What employees are saying about Phacil
Our Contract Vehicles
Phacil's Quality Certifications

Small Business Partnering & Teaming Program

Never forgetting our roots as a small business, Phacil is committed to working collaboratively with small enterprises to help them grow and bring important contributions to the customers and the industry.

Partnerships You Can Rely On

Latest News


TOM NIXON JOINS BY LIGHT LEADERSHIP TEAM (Arlington, VA, July 16, 2019) By Light Professional IT Services LLC (By Light) today announced that Mr. Tom Nixon has joined the firm as Senior Vice President, Homeland Security and Law Enforcement. In this role, Tom will oversee the acceleration of By Light’s

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By Light Selected by DISA for $23.5M Contract

BY LIGHT SELECTED BY DISA FOR $23.5M CONTRACT (Arlington, VA, July 12, 2019)   By Light Professional IT Services LLC(By Light) today announced the award of a $23.5M task order on the Defense Information Systems Agency’s Global Information Grid Services Management – Engineering, Transition and Implementation (GSM-ETI) contract. Task Order 32

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By Light Awarded $100MM Contract by Veterans Affairs

By light awarded $100MM Contract by veterans affairs (Arlington, VA, June 25, 2019)  By Light Professional IT Services LLC (By Light) announced today the award of the Identity and Access Management Program Support Services task order by the Department of Veterans Affairs. The 5-year task order is valued at over

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By Light Ranked In Washington Technology’s Top 100 Companies

BY LIGHT RANKED IN WASHINGTON TECHNOLOGY’S TOP 100 COMPANIES (Arlington, VA, June 17, 2019) By Light is pleased to announce that it has once again been recognized by Washington Technology among the top 100 technology companies; ranking 79th on the list – up from 88th last year. “We are pleased

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By Light Announces Leadership Appointments

By Light Announces Leadership Changes (Arlington, VA, June 12, 2019)  As part of our relentless commitment to mission as well as acceleration of strategic growth, By Light Professional IT Services LLC (By Light) today announces the following leadership appointments effective immediately, with each intended to reinforce and expand both current

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Phacil, LLC
8484 Westpark Drive, Suite 600
Mc Lean, VA 22102
Phone: +1 (703) 526-1800
General Email: