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.

Best System Integration Companies

10 Companies-Rankings updated: October 20, 2026
System Integrator

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.

System Integrator × Automotive × $25,000 - $50,000 ×Clear Filters
  • ELEKS

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    ELEKS, a trusted partner for guaranteed software engineering excellence, quality, and transparency.

    ELEKS is a full-cycle IT services firm with 30+ years of experience and 2,000+ specialists, delivering custom software, AI, cloud, and enterprise applications across fintech, healthcare, and logistics. It holds a 97% client satisfaction rate. Best for enterprises seeking a long-term IT partner...

    Top Services:

    • Software Development
    • Mobile App Development
    • Cloud Consulting
    • Cybersecurity
    • AI Development
    • Show more
    Location
    Chicago, Illinois
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $50/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    12 Projects Listed

    ELEKS Services

    • Software Development
    • Mobile App Development
    • Cloud Consulting
    • Cybersecurity
    • AI Development
    • ERP Consulting
    • CRM Consulting
    • Product Design
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Aramex
    • TAIT
    • Acino
    • GRTGaz
    • Autodesk
    • Blackboard
    • Havas
    • ESET
    • Eagle
    • teleologica
    Data sourced from the agency's DesignRush profile

    ELEKS Reviews & Testimonials

    • John Armstrong
      John Armstrong Founder, CEO & CTO at Civex
      5.0★

      Software Development Review from John Armstrong

      ELEKS was able to take our vision and help us deliver an app that empowers retail shareholders to make their voices heard. They’ve brought a depth and breadth of technical expertise and user experience design to challenge us on our assumptions on how people would want to interact with the app. From a mobile development perspective, we wanted to go to market with both an Android and an iPhone simultaneously.

    • Mark Battcock
      Mark Battcock Digital Communication Director at Imerys
      5.0★

      Software Development Review from Mark Battcock

      We are very happy with our ELEKS partnership; the dedication of the team is exceptional. We would certainly recommend ELEKS and would be happy to work with them again. In fact, they continue to be our partner for the 2nd phase of the CDX project to add even more customer services to the website.

    • Huntly Christie
      Huntly Christie CEO at Christie Lites
      5.0★

      Software Development Review from Huntly Christie

      What impressed me about ELEKS is the culture. There is a very strong culture of discipline and performance, and software is a profession where discipline is very important. Good software development can only happen with a strong work ethic, and I think the ELEKS team really understands that.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Certified Experts, Patented Excellence

    Digis provides managed IT services, cloud and DevOps consulting, and cybersecurity for fintech, healthcare, and eCommerce clients, with 300+ projects delivered in 8 years. Best suited for companies needing staff augmentation or dedicated IT teams...

    Top Services:

    • Staff Augmentation
    • Web Design
    • Web Development
    • Mobile App Development
    • IT Services
    • Show more
    Location
    New York City, New York
    Number of Employees
    100 - 249
    Average Hourly Rate
    $39/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    22 Projects Listed

    Digis Services

    • Staff Augmentation
    • Web Design
    • Web Development
    • Mobile App Development
    • IT Services
    • Software Development
    • Managed Services
    • Cybersecurity
    • Product Design
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • BlaBlaCar
    • PWC
    • EDP
    • HubSpot
    • SKF.
    • Huma
    • Otoqi
    • ZEWAY
    Data sourced from the agency's DesignRush profile

    Digis Reviews & Testimonials

    • Wladimir Wolinski
      Wladimir Wolinski Project Manager at Seven Tips UG & Co. KG
      5.0★

      UI/UX Design Review from Wladimir Wolinski

      Communication was smooth either through our teams communication channel or with the project manager via email. We were in daily contact with the UX/UI designer in form of dailies or when we had to clarify some questions. With the project manager, we had a short conversation every 2 weeks to clarify all possible questions.We personally love to work in a very process-oriented way. Because when we understand how to do something, we usually know how the end result can look like. With Digis, we also had the feeling that they knew what they were doing and how to do it. Every next step was planned from the beginning. If something didn't work in line with our processes, we could readjust it.We were basically satisfied with everything.

    • Michael Wilson
      Michael Wilson Co-Founder at Part Swap
      5.0★

      Website Redesign Review from Michael Wilson

      Digis is redesigning our website to a magento based platform to migrate from a Wordpress based platform. Key deliverables include a full discovery document to determine and outline the scope of the work and the magento platform with custom development to fit our needs.Everything has been delivered on time. Danila our project manager has great communication and always responds in a timely manor. We always receive clear explanations and detailed time logs for the work that is done.

    • Gina Levy
      Gina Levy CEO at KindraConnect
      5.0★

      Mobile App Development Review from Gina Levy

      Both the developer and tester have exceeded expectations. Their performance is excellent. Together they eliminated bugs, introduced new features, and ensured that the app is working without problems. Previously, we had many complaints in the app store. Since working with this developer and tester, these complaints about the app functioning and bugs have disappeared.The time zone different is sometimes challenging, since we are in California and they are in Europe.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI-augmented software development for digital products, data-rich platforms & IoT

    AI-augmented software development for digital products, data-rich platforms & IoT for mid-size & enterprise businesses. Visit www.merixstudio.com for more details on our skills, agile teams' capabilities, and engagement models...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • Web Design
    • IoT
    • Show more
    Location
    Poznan, Poland
    Number of Employees
    100 - 249
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    12 Projects Listed

    Merixstudio Services

    • Software Development
    • Mobile App Development
    • Web Development
    • Web Design
    • IoT
    • AI Development
    • UI/UX Design
    • DevOps Consulting
    • Cloud Consulting
    • Cybersecurity
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Expo City Dubai
    • Six Flags
    • Toshiba
    • Volkswagen
    • Moneyfarm
    • The Juilliard School
    • GS1
    • FarmDroid
    • SendinBlue
    • HSBC
    Data sourced from the agency's DesignRush profile

    Merixstudio Reviews & Testimonials

    • Szymon Królikowski
      Szymon Królikowski PM at WAYF
      5.0★

      Software Development Review from Szymon Królikowski

      Merix Studio supported us with team augmentation to one of our projects. Both quality and pace of work was great, their responsiveness, transparency and willingness to help was beyond expectations. Thank you!

    • Michal Wojewoda
      Michal Wojewoda CEO at Petsy sp. z o.o.
      5.0★

      Web Design Review from Michal Wojewoda

      Merixstudio is our exceptional UX/UI design partner, transformed our startup. We needed a UX/UI for a seamless transition from web to app. Exceptional communication, led by Kuba, their designer, ensured alignment with our vision. Their visually stunning, user-centric designs exceeded our expectations. Fast delivery and acurate designs helped us with the transition. We highly recommend Merix to startups seeking top-tier design services a true game-changer in UX/UI design.

    • Yves Latour
      Yves Latour Managing Partner at Lunchgate AG
      4.8★

      Software Development Review from Yves Latour

      We've chosen Merixstudio to raise our core product's UX and UI to the next level. Within a short time, we got an affordable, skilled and effective team off the ground. We've not been disappointed, so far! To this moment, each team member shows the expected professional skills and a high passion for their work and we are able to collaborate in a very agile and customer centric way. It's a pleasure to work with Merixstudio.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Bighorn Web Solutions LLC

    VerifiedVerified by the DesignRush team for authenticity and credibility.

    Your E-Commerce, Our Expertise: Magento & Shopify Solutions

    Your Shopify & Magento Development Experts. Site speed, conversion rate optimization, platform evaluations, platform migrations, theme development, ERP integration development, custom application development, headless development and more!...

    Top Services:

    • eCommerce Development
    • Web Development
    • Software Development
    • CRO
    • Web Design
    • Show more
    Location
    Sheridan, Wyoming
    Number of Employees
    Under 49
    Average Hourly Rate
    $135/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    10 Projects Listed

    Bighorn Web Solutions LLC Services

    • eCommerce Development
    • Web Development
    • Software Development
    • CRO
    • Web Design
    • IT Services
    • UI/UX Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • INTEGRATED MEDICAL SYSTEMS, INC. (IMS)
    • PSP PHARMA
    • SWOON
    • BRUMATE
    • LEVIN FURNITURE & MATTRESS
    • REP FITNESS
    • SELDENS
    • DONOVAN MARINE
    • JOHN V SCHULTZ FURNITURE
    • RACE DAY QUADS
    Data sourced from the agency's DesignRush profile

    Bighorn Web Solutions LLC Reviews & Testimonials

    • Jessica Grant
      Jessica Grant Ecommerce Director at Sports Basement
      5.0★

      Shopify Plus eCommerce Review from Jessica Grant

      Bighorn has been an exceptional partner to our organization here at Sports Basement. They supported us through multiple legal and regulatory accessibility matters with a steady, knowledgeable approach, translating complex requirements into clear, actionable guidance. Throughout these engagements, their team demonstrated a strong understanding of both the legal landscape and the practical realities of building and maintaining accessible digital experiences, which gave us confidence at every step.What truly distinguishes them is that their work goes well beyond compliance. In addition to helping us identify and prioritize accessibility issues, they invested time in educating our teams on how to design and develop accessibility into our site from the start. Their recommendations are thoughtful, pragmatic, and focused on real user impact, enabling us to move from a reactive posture to a more proactive, sustainable accessibility practice.Most importantly, they operate as true partners rather than transactional consultants. Their work is clearly driven by a genuine commitment to making the web usable by all, not simply meeting minimum standards or checking a box. We would strongly recommend them to any organization looking for a strategic accessibility partner who combines expertise, integrity, and a long-term perspective.

    • Mahesh Reddy
      Mahesh Reddy Sr. Exec at Ingest Labs
      5.0★

      Shopify Review from Mahesh Reddy

      BigHorn Solutions entire team is professional and easy to work with. You can easily trust them as your great partner all your you E-commerce technology needs. They are experts in Shopify and Magento solutions.My team relies on their tech expertise. We have released multiple apps on Magento and Shopify in the last 1 year.We'll continue to do so in future.Thank Calen, Chris and all the developers!!Mahesh R.

    • Tiffany Asamoah
      Tiffany Asamoah Sales Operations Manager at Martal Group
      5.0★

      Software Development Review from Tiffany Asamoah

      As a lead generation agency, we required custom software development to streamline our operations and enhance our capabilities. Bighorn Web Solutions far exceeded our highest expectations. Their team's hands-on, white-glove approach was evident from the start, and their level of competency truly set them apart. Working with a global team, they delivered tailored solutions that perfectly aligned with our business needs. Their responsiveness and attention to detail made the entire process smooth and efficient. Thanks to their expertise, weve gained not only a top-tier software solution but also a valuable long-term partner. We couldn't be more satisfied with the outcome and highly recommend Bighorn Web Solutions for their superior service and dedication.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Your Digital Innovation Partners

    Your Digital Innovation Partner. Accelerating innovation through AI, software development, and digital transformation.At Rootstack, we help organizations build scalable digital products, modernize operations, and unlock new business opportunities through technology...

    Top Services:

    • Web Development
    • Software Development
    • Mobile App Development
    • Managed Services
    • Software Testing
    • Show more
    Location
    Panama City, Panama
    Number of Employees
    100 - 249
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    42 Projects Listed

    Rootstack Services

    • Web Development
    • Software Development
    • Mobile App Development
    • Managed Services
    • Software Testing
    • IT Services
    • DevOps Consulting
    • eCommerce Development
    • Big Data Analytics
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • LG
    • Heineken
    • Canon
    • Sura
    • AmCham Panamá
    • IOM
    • Universidad del Rosario
    • Smithsonian Institution
    • BAC
    • AtlasBank
    Data sourced from the agency's DesignRush profile
  • Quality Home Care with Compassion.

    United Respite Care provides compassionate, personalized in-home care and respite support for seniors and individuals with diverse care needs. Our dedicated team focuses on enhancing comfort, independence, and quality of life while giving families dependable peace of mind through professional, client-centered...

    Top Services:

    • Digital Services
    • Graphic Design
    • Web Development
    • SEO
    • PPC
    • Show more
    Location
    Langley, Canada
    Number of Employees
    50 - 99
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    1 Project Listed

    United Respite Care Services

    • Digital Services
    • Graphic Design
    • Web Development
    • SEO
    • PPC
    • Advertising
    • IT Services
    • Market Research
    • Business Consulting
    • Customer Support
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Private Senior Care Clients
    • Families Requiring Respite Care
    • Individuals with Dementia & Disability Care Needs
    Data sourced from the agency's DesignRush profile

    United Respite Care Reviews & Testimonials

    • Gary Sawatsky
      Gary Sawatsky Review from Google
      5.0★

      Gary Sawatsky's Review Sourced from Google

      We have been very pleased with the service provided by United Respite Care. All of their team have provided just what we needed after a difficult hospital experience. In addition to that they put us in contact with a company that could quickly safety proof our bathrooms as well as provide some temporary equipment. We would definitely use their services again.

    • Dawn M
      Dawn M Review from Google
      5.0★

      Dawn M's Review Sourced from Google

      Lue is amazing. I called her office at 1pm, as a new client, (I found her on Google), and she had a nurse in my mom's home by 6pm. She had 12 hour nurse shifts for the next 11 days until we could get our mom into care. Lue's communication and follow up with my sister and I was exceptional, and if we had any questions she answered our text message/call within 5 minutes. I highly recommend United Respite Care under the guidance and direction of Lue.

    • Denny R
      Denny R Review from Google
      5.0★

      Denny R's Review Sourced from Google

      The feedback that we get from United is most impressive, comprehensive and very detailed. The fact that care givers wear nurses' uniforms makes a big impact on the client or patient. We have gone from a few hours a day to considering 24 hour care 7 days a week with United Respite Care Inc.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • STS Software GmbH - Leading Software Development Company in Switzerland

    As an Olten-based business, STS Software GmbH boasts a strong force of software engineers. With this fortification, the STS Software GmbH team has reached a large number of prominent Swiss businesses as strategic partners, contributing to our already formidable industry standing...

    Top Services:

    • Web Design
    • Web Development
    • Software Development
    • Mobile App Development
    • AI Development
    • Show more
    Location
    Olten, Switzerland
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    1 Project Listed

    STS Software GmbH Services

    • Web Design
    • Web Development
    • Software Development
    • Mobile App Development
    • AI Development
    • IoT
    • Software Testing
    • IT Services
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • YPO
    • Welio
    • Teco App
    Data sourced from the agency's DesignRush profile
  • Actual AI. Actual results.

    Actual Reality Technologies is an AI solutions consultancy in Perrysburg, Ohio, built for manufacturers tired of AI hype and hungry for measurable outcomes. We pair frontier AI and machine learning with Lean Six Sigma discipline our CEO is a Master Black Belt with 15 years at GE Aviation and operations...

    Top Services:

    • AI Development
    • Software Development
    • Big Data Analytics
    • IoT
    • Mobile App Development
    • Show more
    Location
    Perrysburg, Ohio
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    1 Project Listed

    Actual Reality Technologies Services

    • AI Development
    • Software Development
    • Big Data Analytics
    • IoT
    • Mobile App Development
    • Staff Augmentation
    • Cloud Consulting
    • Business Consulting
    • Engineering
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Owens Corning
    • Libbey Glass
    • Owens-Illinois
    • Northwest Ohio Innovation Consortium
    • SSOE
    • Fivos Health
    • Magna
    • Foundation Steel
    • University of Toledo
    • Bowling Green State University
    Data sourced from the agency's DesignRush profile
  • Building Better Technologies

    Centroxy is your trusted partner in navigating IT complexities with expertise in Identity and Access Management, Managed Services, Data Management, and Observability...

    Top Services:

    • IT Services
    • Managed Services
    • Cybersecurity
    • Mobile App Development
    • Software Development
    • Show more
    Location
    Bhubaneswar, India
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000

    Centroxy Services

    • IT Services
    • Managed Services
    • Cybersecurity
    • Mobile App Development
    • Software Development
    • DevOps Consulting
    • Big Data Analytics
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Tata Power
    • Airtel-Vodafone
    • Dubai Muncipality
    • BHEL
    • Deloitte
    Data sourced from the agency's DesignRush profile

    Centroxy Reviews & Testimonials

    • Vinay AS
      Vinay AS Review from Google
      1.0★

      Vinay AS's Review Sourced from Google

      Worst experience in this company interview they are expected answer like college level not corporate level

    • Sthitaprajna Das
      Sthitaprajna Das Review from Google
      5.0★

      Sthitaprajna Das's Review Sourced from Google

      They work in all leading techs..grt startup in bbsr..prbly the best one of bbsr..not only web site dev like odrs out der

    • Abhishek Rana
      Abhishek Rana Review from Google
      5.0★

      Abhishek Rana's Review Sourced from Google

      Centroxy is a Privately registered software company from India and managed by highly experienced professionals from the software Industry. We provide premium services on Application development (Web/Mobile), Managed Service, Data warehouse. We have our unique framework to ensure successful delivery of our service. Our quality control is in place to ensure the key parameters of development like Coding Quality, application Security, Performance ,Document are not compromised. We are here to take care your technical infrastructure so that you can more focus on your business.All our resources are highly skilled with latest programming languages, design patterns and modern development processes.We understand only technical expertise will not able to provide high quality application. So we consider all the aspects to ensure best quality of service is provided. Our delivery center is equipped with high-end servers, laptop, network to ensure seamless service to our customers.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI-first digital solutions for ambitious teams

    Solnix Media is an AI-first digital agency building practical websites, software, and automation for growing teams. We combine strategy, design, engineering, and AI to turn complex ideas into useful digital products...

    Top Services:

    • Digital Strategy
    • Web Design
    • Web Development
    • AI Development
    • Software Development
    • Show more
    Location
    Hyderabad, India
    Number of Employees
    100 - 249
    Average Hourly Rate
    $70/hr
    Minimal Budget
    $25,000 - $50,000

    Solnix Media Services

    • Digital Strategy
    • Web Design
    • Web Development
    • AI Development
    • Software Development
    • Mobile App Development
    • IT Services
    • Blockchain
    • Wearables
    • eCommerce Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Kalesha & Co
    • Tier-1 defence contract review AI
    • Manufacturing AI predictive maintenance
    Data sourced from the agency's DesignRush profile

Why companies trust DesignRush

Every agency is independently vetted before it can be listed or ranked

1

Identity Check

We verify businesses and reviewer LinkedIn profiles for integrity.

Agencies vetted
128,711+
2

Portfolio Review

We review agency work, case studies, and results to confirm skill.

Applicants rejected
47%
3

Ongoing Audit

We monitor listings regularly; outdated agencies are removed.

Agencies verified
10

Some agencies pay for sponsored placement, clearly labeled and held to the same vetting standards.

See how rankings and monetization work.

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.