Best IT Services Companies in Illinois, United States
The 457 best IT Services companies in Illinois, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Thoughtworks.
Ranked: Best IT Services companies in Illinois
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Thoughtworks Leading global technology consultancy integrating strategy, design, and software engineering to enable… | $748M | 65 mo ago | 10,500 | Mike Sutcliff CEO | Adobe Experience ManagerSentryZendesk+44 | — | — |
| 2 | RedShelf Platform offering digital textbooks for students | $84M | 40 mo ago | 107 | Rob Holland Chief Executive Officer | Cart FunctionalityWixSentry+25 | — | — |
| 3 | ITsavvy Provides IT services suite | $81M | 46 mo ago | 330 | Michael Theriault Co-Founder | WordPressApple iCloud MailMySQL+30 | — | — |
| 4 | DigitalWork Tools and services to market SMB's online | $64M | 306 mo ago | 68 | Michael Morganstern CEO & President | PerlFacebook LoginUNIX+16 | — | — |
| 5 | Rightpoint Provider of web & mobile application development and IT consulting services | $55M | 132 mo ago | 437 437 → 343 (-22%) | Ron Shamah CEO | ContentfulApple iCloud MailMicrosoft 365+23 | — | — |
| 6 | Neohapsis Security and GRC advisory and consulting service | $47M | 155 mo ago | 69 | — | — | — | — |
| 7 | Pomeroy Technology solutions provider empowering businesses with connected, secure, and efficient solutions | $40M | 156 mo ago | 2,834 2,834 → 3,410 (+20%) | — | WordPressApple iCloud MailMicrosoft 365+36 | 2 patents Window sash balancing and locking mechanisms for block‑and‑tackle systems | 1 award |
| 8 | UncommonX Provider of cyber security assessment, managed solutions, and incident response services | $37M | 6 mo ago | 31 31 → 25 (-19%) | Raymond Hicks Founder & CTO | — | 41 patents Patents concentrated in computing, sensing & instrumentation | 1 partnership |
| 9 | Block Mining Provider of end to end support services for blockchain hardware | $32M | 59 mo ago | 6 | Michael Stoltzner Co-Founder | — | — | — |
| 10 | Open Plug Provider of DevOps, analytics, cloud, web & software development, and other services | $30M | 236 mo ago | — | Eric Baissus Co-Founder | — | — | — |
| 11 | Analytics8 Provides data analytics solutions for business intelligence | $29M | 15 mo ago | 96 96 → 147 (+53%) | David Fussichen Founder & CEO | WordPressMySQLPHP+27 | — | — |
| 12 | Clarity Insights Provider of data and analytics services | $28M | 141 mo ago | 362 | — | — | — | — |
| 13 | FineGround Networks Provider of web application development services | $21M | 293 mo ago | — | BN Nat Kausik CEO | — | — | — |
| 14 | BigScoots Premium managed web hosting specializing in WordPress with exceptional support | $19M | 35 mo ago | 13 | Scott Stapley CEO | WordPress Block EditorCart FunctionalityWordPress+28 | — | 1 award |
| 15 | Fruition Partners ITSM consulting and implementation | $17M | 143 mo ago | 400 | Marc Talluto Co-Founder & CEO | — | — | — |
| 16 | Flexera Provider of IT management solutions for cloud, SaaS, and data centers | $6M | 60 mo ago | 201 | Jim Ryan CEO | DrupalSentryAtlassian Statuspage+32 | — | — |
| 17 | Havoc Shield Provider of cyber security training services | $5M | 46 mo ago | 10 | — | — | — | — |
| 18 | SWC Technology Partners Provider of IT service suite solutions | $4M | 142 mo ago | 215 | — | — | — | — |
| 19 | Edify Technologies Provider of application development, cloud, erp and other services | $4M | 14 mo ago | 29 | Sivasankar Moopanar CEO | WordPressMySQLPHP+16 | 5 patents Patents concentrated in electrical & electronics | — |
| 20 | Steadfast Enterprise cloud, virtual, and dedicated server solutions for any workload | $4M | 122 mo ago | 31 | — | — | — | — |
| 21 | Tandem Provides horizontal application development services | $4M | 118 mo ago | — | JC Grubbs Founder and CEO | — | 34 patents Optimized photovoltaic module design and UV-filtered solar cell integration | — |
| 22 | Kove Provider of software development services | $2M | 130 mo ago | — | John Overton CEO | WordPressMySQLPHP+29 | 63 patents Extending and virtualizing system memory via external, cache‑coherent memory fabrics. | — |
| 23 | EdgeMode Provider of AI data center infrastructure and energy storage systems | $2M | 9 mo ago | 11 | Roger Dixon Co-Founder | Framer SitesThree.jsReact+8 | — | 1 expansion |
| 24 | Rhodian Provides technology, cybersecurity, and compliance solutions | $2M | 148 mo ago | 39 | — | — | — | — |
| 25 | Red Foundry Chicago's award-winning mobile app developer, mobilizing businesses with custom solutions | $1M | 190 mo ago | 24 | — | WordPressMySQLPHP+19 | — | — |
| 26 | DivIHN Provider of IT consulting, digital transformation, and business solutions | $1M | 11 mo ago | 135 | Herald M Founder and CEO | DrupalPHPBootstrap+20 | — | — |
| 27 | CDW Corporation Provider of IT service suite solutions | $1M | 130 mo ago | 15,100 15,100 → 18,736 (+24%) | Chris Leahy President & CEO | Cart FunctionalityAdobe Experience ManagerApple iCloud Mail+25 | 172 patents Patents concentrated in computing, sensing & instrumentation | — |
| 28 | Access One Provides IT services suite | $745K | 196 mo ago | — | Mark Jozwiak Founder And Chairman | WordPressApple iCloud MailMicrosoft 365+31 | — | — |
| 29 | Athena Provider of AI, IoT and blockchain development services | $368K | 101 mo ago | 67 | Manchala Satyendra Chairman & CEO | WordPressMySQLPHP+20 | 46 patents Side-channel resistant cryptographic hardware and portable cleanroom flow hood systems | — |
| 30 | FarShore Custom software and design firm building innovative web and mobile applications | $125K | 110 mo ago | 147 | Jc Garrett Chief Executive Officer | BootstrapGSAPApache HTTP Server+16 | — | — |
| 31 | Convergint Physical security service provider | $100K | 54 mo ago | 4,327 4,327 → 7,178 (+66%) | — | WordPressApple iCloud MailMicrosoft 365+35 | — | — |
| 32 | Menerva Provider of data analytics solutions | $93K | 94 mo ago | 14 | Sony Gabriel Co-Founder & CEO | — | — | — |
Top 12 IT Services companies in Illinois
#1
Series A · Chicago, Illinois · founded 2012 · 31 employees$37.2Mraised▾
Provider of cyber security assessment, managed solutions, and incident response services
- Dec 2025Series A$1.5M
- Aug 2023Series A$8.3M
- Feb 2023Series A$1.2M
- Nov 2021Series A$9.5M
#2
Acquired · Chicago, Illinois · founded 2002 · 96 employees$29.4Mraised▾
Provides data analytics solutions for business intelligence
- Feb 2025PE$29.4M
#3
Public · Chicago, Illinois · founded 2020 · 11 employees$2.4Mraised▾
Provider of AI data center infrastructure and energy storage systems. The company acquires land, secures power, obtains permits, designs sites, and delivers projects. It develop campuses from early-stage land acquisition to ready-to-build. Each site is designed with high capacities, dedicated baseload power, resilient architecture, and deployment timelines. The company also develops grid-connected battery energy storage system sites.
- Sep 2025Post IPO$1M
- Apr 2025Post IPO$391.2K
- Jun 2021Post IPO$1.7M
- Feb 2021Post IPO$769.2K
#4
Funding Raised · Naperville, Illinois · founded 2002 · 29 employees$4.3Mraised▾
Provider of application development, cloud, erp and other services
- Apr 2025Grant (prize money)$1.3M
- Feb 2025Grant (prize money)$1.3M
- Aug 2024Grant (prize money)$306.9K
- Jun 2018Grant (prize money)$225K
#5
Funding Raised · Hoffman Estates, Illinois · founded 2002 · 135 employees$1Mraised▾
Provider of IT consulting, digital transformation, and business solutions. It offers strategy and solution advisory, solution design, and implementation assistance for applications, data, analytics, and infrastructure transformation. The company focuses on systems development with architecture, design, development, quality assurance, and support on Salesforce and Microsoft platforms. It enhances cyber risk awareness, management, and cyber-readiness through thought leadership, education, guidance, solution design, and implementation. The company provides alternative talent solutions and M&A IT capabilities development, advisory, training, integration management, and support.
- Jul 2025Conventional Debt$1M
#6
Public · Chicago, Illinois · founded 1993 · 10500 employees$748Mraised▾
Thoughtworks is a leading global technology consultancy that specializes in integrating strategy, design, and software engineering to help enterprises and technology disruptors achieve their goals. They offer a range of services and solutions to drive innovation and create extraordinary impact.
- Jan 2021Series B$720M
- Dec 2016Grant (prize money)$1M
- Apr 2000Series A$28M
#7
Series D · Chicago, Illinois · founded 2012 · 107 employees$83.5Mraised▾
Platform offering digital textbooks for students. It offers solutions for buying, selling, and reading digital content like eBooks, textbooks, academic materials, magazines, documents, and other digital content. It also provides tools for bookmarking, highlighting, and note-taking.
- Feb 2023Series D$15M
- Aug 2020Series C$10M
- Apr 2020Series C$300K
- Oct 2018Series C$25M
#8
Acquired · Addison, Illinois · founded 2004 · 330 employees$81.4Mraised▾
Provides IT services suite
- Aug 2022PE$81.4M
#9
Series B · Chicago, Illinois · founded 2010 · 13 employees$19.3Mraised▾
Premium managed web hosting specializing in WordPress with exceptional support. The company delivers fully managed, worry-free hosting platforms for mission-critical websites and applications globally. It focuses on providing industry-leading support and management through direct communication and proactive problem-solving. The company offers various services, including managed WordPress hosting, enterprise hosting, managed servers, cloud VPS, and dedicated servers. It emphasizes a human-to-human approach, building personal relationships with clients and ensuring their success through expert support and site-specific management. The company provides seamless migrations, proactive monitoring, and optimized performance, making it a trusted partner for businesses seeking reliable and high-performing web hosting solutions. It offers a range of plans with monthly and annual pricing, catering to different needs and budgets. The company's services include CDN, free migrations, daily backups, and simple upgrades.
- Jul 2023Series B$19.3M
#10
Acquired · Chicago, Illinois · founded 2019 · 6 employees$32Mraised▾
Provider of end to end support services for blockchain hardware
- Jun 2021Series B$25M
#11
Acquired · Chicago, Illinois · founded 1997 · 69 employees$47.2Mraised▾
Neohapsis provided security and GRC advisory services to the organizations. Services included risk management, compliance, cloud, application, mobile, and infrastructure security solutions. Claimed to protect against both operational and technical security vulnerabilities by mapping the risk posture and defining a structured approach for protection against it. Formerly a subsidiary of KSR and finally acquired by Cisco in 2014 to extend its cybersecurity advisory service.
- Jun 2013Series C$4.9M
- Oct 2010Series C$16.5M
- Mar 2009Series B$2M
- Oct 2008Series B$3M
#12
Series C · Chicago, Illinois · founded 1998 · 68 employees$63.7Mraised▾
Provider of custom website development and search engine submission services intended to offer cost-effective and easy-to-use online services for small businesses and enterprises. The company's services include website development with attractive, customized web pages, internet marketing services and search engine optimization, enabling clients to drive traffic to their websites and generate revenues.
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of IT Services coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.