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System One

Exceptional Talent, Specialized Solutions


Today, System One stands as one of the largest integrated services and workforce solutions firms in the U.S. with more than 8,000 employees and consultants hard at work every day from more than 50 offices and hundreds of client locations. That’s just the beginning of the story…

Solutions & Services for your Business

The term “staffing agency” only scratches the surface of how we support employers to get work done more efficiently and economically. For over 40 years, we’ve evolved and expanded to deliver these integrated services, workforce solutions, and staffing:

Diversifying for success

System One’s legacy businesses exclusively served energy and industrial markets. Now, our delivery spans many sectors, including energy, engineering, information technology (IT), professional, commercial, healthcare & scientific, legal, and beyond. View our specialties.

A company of experts investing in “yes”

Of course, we couldn’t have gotten this far without the trust of our clients and talents of our people. These collaborative partnerships prompt us to ask questions like:

  • “How can we do it better?”
  • “What if we tried something different?”
  • “What’s in the best interests of all parties?”

These challenges have made us who we are — a company of dedicated professionals ready to support your staffing and recruiting requirements. Because we say yes and invest in the future, we push the boundaries of innovative workforce management and accomplish what other staffing agencies can’t deliver.

System One at-a-glance and rankings based on SIA’s 2020 Largest Staffing Firms in the US

  • Over 8,000 consultants on assignment
  • Over 50 US and Canadian office locations
  • Over 450 recruiting, account management, and back office professionals
  • 22nd Largest Staffing Firm in the US
  • 4th Largest Engineering Staffing Firm in the US
  • 4th Largest Marketing / Creative Staffing Firm in the US
  • 7th Largest Legal Staffing Firm in the US
  • 20th Largest Life Sciences Staffing Firm in the US
  • 51st Largest IT Staffing Firm in the US





System One History


System One Acquires Syneos Health Contingent Staffing

Syneos Health Contingent Staffing Logo
Joulé, a System One division, enhances clinical workforce solutions capabilities by acquiring Syneos Health’s Contingent Staffing business. The acquisition cements Joulé’s clinical footprint.

System One Acquires Level 5 Consulting Engineers

level 5 consulting engineers
MOUNTAIN, LTD., a System One division, announces acquisition of Level 5 Consulting Engineers, architecture & engineering provider. The wholly-owned subsidiary will operate as MOUNTAIN, LTD. Engineering with offices in New Braunfels, TX and Houston, TX.

System One Acquires Cohesion

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ALTA IT Services acquired IT workforce solutions firm Cohesion, with offices in Cincinnati and Baltimore. Cohesion delivers workforce solutions and agile consulting services to the government and private sectors, including infrastructure, application support, business intelligence, quality assurance and software testing, and agile consulting.

System One Acquires The Rowland Group

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Acquired engineering, IT, and finance & accounting staffing firm, The Rowland Group, to expand our presence in Tulsa and Houston. The Rowland Group is a professional recruiting firm that provides businesses with hiring solutions in a wide variety of customized hiring solutions, including contract, contract-to-hire, and direct-hire.

System One Acquires TPGS

Acquired government contractor TPGS to strengthen GAP Solutions’ capabilities. TPGS provides customized mission-critical intelligence services and support with rapid response, proven talent, and exceptional service. They deliver cleared teams of qualified IT professionals to the Department of Defense and federal clients.

System One Acquires NTP Wireless

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Acquired wireless telecom company NTP Wireless to reinforce the MOUNTAIN, LTD. team. NTP Wireless specializes in site acquisition services including site identification, permitting, leasing, and zoning services. They offer custom infrastructure solutions focused on expanding mobility coverage and increasing network capacity.

System One Acquires Transformer Repair Utility Services

Acquired Transformer Repair Utility Services (TRUS), a utilities services firm, to expand capabilities of Utility Partners of America (UPA). As part of the agreement, TRUS operates under UPA.

System One Acquires juvo Telecom

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Acquired wireless telecom company juvo Telecom to reinforce the MOUNTAIN, LTD. team. juvo Telecom is a fully-integrated wireless engineering services company. Dedicated to the rapid evolution of the mobile communications industry, juvo specializes in site development, project management, program management, consulting, and staffing solutions.

System One Acquires GAP Solutions

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Acquired government services company GAP Solutions. GAP delivers mission-critical outsourcing, process management, and supply chain management to their Defense and federal civilian customers.

System One Acquires TeamPeople

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Acquired multimedia services firm TeamPeople to strengthen our foothold in the Creative & Digital space. TeamPeople is a trusted advisor providing multimedia, engineering, and AV consulting services to the best-known and well-respected organizations in the world.

Thomas H. Lee Partners Invests in System One

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Thomas H. Lee Partners, L.P. made a significant investment in System One.

System One Acquires Precision Resource Company

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Boosted energy reach with acquisition of Precision Resource Company. Precision provides engineering, project management, and technical support to the power and energy industries. They became a wholly-owned subsidiary of System One Holdings, LLC, and will operate in alignment with System One’s energy division.

System One Acquires AECOM’s Quality Programs

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Acquired Quality Programs from AECOM. Quality Programs was integrated into System One’s Quality Solutions practice to provide a full spectrum of workforce solutions and quality engineering, product assurance, asset integrity, inspection, and testing services.

System One Acquires ALTA IT Services

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Significantly enhanced IT reach by acquiring ALTA IT Services, an established leader in IT staffing and consulting services for government, commercial, and non-profit enterprises in the Washington, DC metro area.

System One Acquires MOUNTAIN, LTD.

Acquired MOUNTAIN, LTD., a global engineering services provider specializing in the telecommunications industry. With 40 years of industry expertise and a national footprint, MOUNTAIN offers rapid deployment of end-to-end, scalable solutions in OSP, ISP, and Wireless engineering without compromising quality and security.

System One Acquires Joulé

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Acquired Joulé Inc. and subsidiaries to gain synergies in the Life Sciences industry. Joulé consists of multiple business lines working together for client success: scientific, clinical, and healthcare staffing, plus equipment services.

MidOcean Partners Invests in System One

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MidOcean Partners made a significant investment in System One.

System One Acquires Link2Consult VMS

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Acquired the Link2Consult technology platform, which delivers complete workforce procurement through a flexible Vendor Management System (VMS).

System One Acquires Compliance Discovery Solutions

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Re-established roots in the legal market with acquisition of Compliance Discovery Solutions. Compliance is an ISO 27001 certified eDiscovery services and managed review provider, as well as the innovator of Discovery-as-a-Service (DaaS). They help corporate legal departments and their outside counsel manage critical and complex legal matters.

System One Acquires Utility Partners of America

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Acquired Utility Partners of America (UPA), expanding reach in the energy industry. UPA provides project management, construction management, operations, maintenance, and professional services.

Management Buyout

System One launched as an independent staffing agency with divestiture of engineering and technical practices from Hudson Highland Group

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