Accenture, Cognizant, Capgemini, IBM, Tata Consultancy Services - these are among the top system integrators enterprises select to unify technology ecosystems, streamline operations, and implement scalable infrastructure solutions that support secure and efficient business growth.

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

United States × System Integrator × Legal ×Clear Filters
  • Build. Scale. Deliver.

    Colossus is a professional services & staffing firm with deep roots in intelligence, defense, and enterprise cybersecurity. We advise, assess, and engineer programs across critical verticals including Healthcare, AI, Government, and Manufacturing...

    Top Services:

    • Cybersecurity
    • IT Services
    • Managed Services
    • Cloud Consulting
    • Staff Augmentation
    • Show more
    Location
    Boston, Massachusetts
    Number of Employees
    Under 49
    Average Hourly Rate
    $175/hr
    Minimal Budget
    $10,000 - $25,000
  • Empower Your Business with Top-Rated IT Services & Digital Marketing Agency

    Founded with a vision to revolutionize the IT and digital marketing landscape, we have grown to become industry leaders in providing cutting-edge solutions that drive business success. Q-Tech Inc. is your organizations IT-managed services and online marketing partner. We are dedicated to helping you achieve...

    Top Services:

    • IT Services
    • Cybersecurity
    • Cloud Consulting
    • Digital Marketing
    • Social Media Marketing
    • Show more
    Location
    Southwest Ranches, Florida
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $1,000 - $10,000
  • Memphis IT Support That Answers The Phone

    Netcosa provides dependable IT support, cybersecurity, cloud services, and technology management for small and growing businesses. We help companies stay secure, productive, and supported with responsive local service and practical solutions that fit the way they work...

    Top Services:

    • Staff Augmentation
    • Managed Services
    • Cloud Consulting
    • Cybersecurity
    • IT Services
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    Location
    Germantown, Tennessee
    Number of Employees
    Under 49
    Average Hourly Rate
    $150/hr
  • IT support and marketing under one roof. Est. 2018.

    We're a managed IT and marketing shop with real offices in Sarasota, Clearwater, and St. Charles, Illinois. Most of our clients came to us after getting burned by a provider who was slow to answer the phone. So that's the thing we obsess over: picking up fast, fixing it right, and knowing your setup well...

    Top Services:

    • IT Services
    • Managed Services
    • Cybersecurity
    • Digital Marketing
    • Advertising
    • Show more
    Location
    St. Charles, Illinois
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • Specialized IT For Your Industry

    Braintek is a Houston managed IT services provider supporting small and mid-sized businesses since 2002. From our Spring, TX headquarters we deliver managed IT, cybersecurity, Microsoft 365 and Azure management, backup and disaster recovery, and a helpdesk that answers in about 60 seconds. We serve 10 to 200...

    Top Services:

    • IT Services
    • Managed Services
    • Cybersecurity
    • Cloud Consulting
    • IT Compliance Solution
    • Show more
    Location
    Spring, Texas
    Number of Employees
    Under 49
  • When IT ABSOlutely has to work!!

    ABSO Technologies delivers reliable, enterprise-grade Managed IT Services to businesses, municipalities, and nonprofits. Our fully in-house team provides proactive support, cybersecurity, and strategic IT solutions to keep your organization secure, efficient, and focused on growth...

    Top Services:

    • IT Services
    • Managed Services
    • Cloud Consulting
    • Cybersecurity
    • Staff Augmentation
    • Show more
    Location
    Sacramento, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $90/hr
    Minimal Budget
    Under $1,000
  • World-Class Offshore Software Development Agency.

    Nerdbug is a world-class offshore software development company that caters to businesses across various industries and growth stages, with precision and a passion for excellence. Contact us for cost-effective and timely delivery of AI & Ml software solutions, Web & Mobile app development, Custom enterprise...

    Top Services:

    • Software Testing
    • Software Development
    • Mobile App Development
    • Blockchain
    • AI Development
    • Show more
    Location
    Atlanta, Georgia
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
  • We Keep Ohio Smbs Secure, Online, and Problem-Free Without the Wait.

    Securafy Inc. is a leading provider of tailored IT services and solutions catering to small and medium businesses and their owners across the Greater Columbus, Cleveland, Akron, Medina, and surrounding areas. Our comprehensive offerings encompass a wide range of services, ensuring that our clients receive...

    Top Services:

    • Managed Services
    • Cybersecurity
    • IT Services
    • IT Compliance Solution
    • Cloud Consulting
    • Show more
    Location
    Willoughby, Ohio
    Number of Employees
    50 - 99
    Minimal Budget
    Under $1,000
  • Creating quality software and training technology experts.

    Coder Makers , with more than 15 years of experience, offers complete information systems solutions for companies. We excel at understanding and addressing business needs with services that cover all aspects of necessary software...

    Top Services:

    • IT Services
    • Big Data Analytics
    • Cybersecurity
    • Cloud Consulting
    • DevOps Consulting
    • Show more
    Location
    New York City, New York
    Number of Employees
    Under 49
  • Stop threats. Stay Secure

    Vision Quest is a specialized cybersecurity and managed services provider serving the Sacramento professional community. The organization focuses on solving the shortage of high-level technical talent by providing managed detection and response (MDR), endpoint protection, and network security monitoring...

    Top Services:

    • Cybersecurity
    • Managed Services
    • IT Compliance Solution
    • IT Services
    • Cloud Consulting
    • Show more
    Location
    Citrus Heights, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $1,000 - $10,000
  • Building Digital Growth.

    At LN Solutions , our mission is simple: to empower businesses with the tools and strategies they need to succeed online. Whether it's creating stunning websites, implementing effective digital marketing campaigns, or developing custom software solutions, we are here to help our clients achieve their goals...

    Top Services:

    • Digital Services
    • Web Development
    • Social Media Marketing
    • eCommerce
    • AI Development
    • Show more
    Location
    Schaumburg, Illinois
    Number of Employees
    Under 49
    Minimal Budget
    Under $1,000
  • Get the Most Comprehensive Technology Solutions Tailored to Your Unique Needs

    LiveWire Technologies delivers tailored IT solutions designed to meet the unique needs of businesses, including cloud hosting, system integration, and secure document management. With a focus on law firms and corporate clients, LiveWire Technologies provides advanced security, seamless data management, and...

    Location
    Little Elm, Texas
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr

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5 Frequently Asked Questions About System Integrator Companies

Who needs system integrator company services?

Any business that uses multiple software systems and needs them to work together needs a system integrator. When systems are disconnected, data duplicates, processes slow down, and errors increase. 

Typical use cases: 

  • Mid-size and enterprise companies that have multiple tools (ERP, CRM, HR, finance) that must share data 
  • Companies running legacy systems with outdated software that does not connect easily with modern tools 
  • Fast-growing businesses that are adding new tools quickly and losing control over data and workflows 
  • eCommerce and retail companies that need to sync orders, inventory, payments, and customer data in real time 
  • Manufacturing and logistics companies that require tight coordination between supply chain, inventory, and operations systems 
  • Finance and healthcare organizations that handle sensitive data and need secure, compliant integrations 
  • Companies undergoing digital transformation that move to cloud systems, automation, or new platforms 

Clear signal you need an integrator: 

  • Data is entered manually into multiple systems 
  • Reports do not match across tools 
  • Teams rely on spreadsheets to “connect” systems 
  • Processes break when one system changes 
  • Scaling creates more errors instead of efficiency 

At that point, integration is no longer optional. 

How much do system integrator companies charge for their services?

System integrator services typically cost $15,000 to $1,500,000+, depending on how complex your systems are and how many platforms need to be connected. 

Here is how pricing usually breaks down: 

  • Simple integrations (2 systems): $15,000 to $75,000 
  • Mid-level integrations (3–5 systems): $75,000 to $300,000 
  • Enterprise-wide integrations (5+ systems): $300,000 to $1,500,000+ 

Cost also follows a clear structure across the project: 

  • Planning and architecture: 10 to 20% of the total cost 
  • Development and setup: 50 to 70% of the total cost 
  • Testing and QA: 15 to 25% of total cost 
  • Training and rollout: 5 to 15% of total cost 

There are ongoing costs that most companies ignore at the start. After launch, expect: 

  • Support and maintenance: 15 to 25% of the initial cost per year 
  • Cloud, tools, and licenses: Ongoing monthly or annual fees 
  • API and data usage costs: Depends on volume 

Costs increase fast when systems are outdated, data is messy, or real-time processing is required. Legacy systems alone can add 20-50% to cost, and most companies should plan an extra 20-30% buffer for unexpected issues. 

What is a typical timeline for system integration projects?

Most system integration service providers require from 3 to 18 months for their projects, depending on the number of systems, data complexity, and business size. 

Here is how timelines usually break down: 

  • Small to mid-size projects: 3 to 9 months
  • Large enterprise projects: 6 to 18 months 
  • Simple integrations (2 systems): 6 to 12 weeks 
  • Complex integrations (multiple systems): 9 to 18+ months 

How system integration companies execute the project also affects speed: 

  • Phased rollout: 4 to 12 months, lower risk, more stable 
  • Big bang (all at once): 3 to 6 months, faster but higher risk 

Several factors directly impact the timeline: 

  • Data cleanup and migration can take 15 to 20% of the total time 
  • Custom features add 3 to 6+ months 
  • Legacy systems slow everything down 
  • Testing and go-live add 1 to 2 months if done properly 

Delays are common. Around 43% come from technical issues, and 40% from changing scope during the project. 

How much downtime does system integration require?

Most system integrations require little to no downtime if planned correctly, but in practice, expect a few hours to a few days of disruption during final switchovers. 

Downtime depends on how the company executes the project: 

  • Parallel integration (best case): Near-zero downtime 
    The new system runs alongside the old one, and then the switch happens quickly 
  • Phased integration: A few hours at a time 
    Work is done in small parts during planned maintenance windows 
  • Full cutover (big bang): Hours to several days 
    The entire system is replaced at once, with the highest risk of disruption 

Several factors increase downtime risk: 

  • Legacy systems: Harder to connect, more failures 
  • Poor planning: No fallback or rollback options 
  • High system dependency: If one system fails, others stop 
  • No testing environment: Issues appear during live use 

Strong teams reduce downtime by using backups, testing in advance, and scheduling work during low-activity periods. In well-managed projects, operations continue with minimal interruption. 

What kind of support do system integrator companies provide after the project is finished?

System integration service providers do not stop at launch. They provide ongoing support to keep systems stable, secure, and working as expected. Without this, integrations break over time as systems update or data grows. 

Post-project support usually includes: 

  • Fixing errors, broken connections, or data sync issues that appear after launch 
  • Tracking system health, fixing slow processes, and improving speed as data volume grows 
  • Adjusting integrations when connected platforms change or update 
  • Patching vulnerabilities and maintaining data protection standards 
  • Helping internal teams resolve issues and answering day-to-day questions 
  • Adding new features, connecting new systems, or expanding integrations as the business grows 
  • Providing guides and training so teams can use and manage the system properly 

Most companies charge ongoing support as 15–25% of the initial project cost per year. Without this support, systems degrade, errors increase, and internal teams take on hidden maintenance work. 

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