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Top Tech Companies in Chicago, IL (7,767)

StackAdapt
AdTech • Marketing Tech
7 Offices
371 Employees
18 Benefits Hiring Now

StackAdapt is a self-serve advertising platform that specializes in multi-channel solutions including native, display, video, connected TV and audio ads.

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StackAdapt
Miller Cooper & Co., Ltd.
Professional Services • Consulting • Financial Services • Manufacturing
3 Offices
514 Employees
Hiring Now

Miller Cooper is the 10th largest accounting firm in the Chicago area, providing accounting, tax, due diligence, IT, retirement plan, and business consulting services. Founded in 1919, the firm serves middle market and entrepreneurial companies, as well as nonprofit organizations, with a focus on helping clients achieve their goals through technical excellence and personal attention.

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Miller Cooper & Co., Ltd.
Trump International Hotel & Tower Chicago
Chicago
342 Employees
Hiring Now

Proudly named Forbes Travel Guide Five-Star Hotel, Trump International Hotel & Tower® Chicago rises above other Chicago luxury hotels, bringing a new level of luxury to the Midwest. Trump Chicago is a showcase of bold style and engaging design situated along the Chicago River, resulting in incredible views of Navy Pier and its weekly fireworks show. From the exclusive shops...

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Trump International Hotel & Tower Chicago
CapTech
Information Technology • Consulting
9 Offices
1,100 Employees
30 Benefits Hiring Now

CapTech is a national consulting firm that helps clients grow efficient, successful businesses. We do so by bringing the data, systems, and ingenuity organizations need to stay ahead and transform what’s possible in a changing world. We are master builders, creators, and problem solvers who find inspiration in the unknown and enjoy getting our hands dirty as we design solutions...

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CapTech

CapTech's Top Stability & Growth Strengths

Strong Brand Reputation: Repeated national accolades from Forbes and Consulting Magazine indicate durable market credibility and recognition. Consistently high internship rankings reinforce a strong talent brand that supports delivery quality.

Strategic Partnerships: Ongoing alliances such as the extended PGA of America relationship and Microsoft Solution Partner status demonstrate trusted ecosystem positioning. These partnerships enable multi‑year engagements and visibility with enterprise clients.

Innovation-Driven Growth: Active focus on AI and emerging technologies, including new AI-powered offerings and annual Technology Trends research, positions the firm to capture modern transformation demand. Documented case outcomes in data engineering and digital operations show innovation translating into client impact.

Shapiro+Raj
Marketing Tech
Chicago
93 Employees
23 Benefits Hiring Now

Shapiro+Raj is the sixth-largest independent insights and inspiration company in North America. Our mission is to help Fortune 500 clients find new and different ways to grow their brands in today's continually reshaping landscape. We have integrated behavioral science principles with behavioral economic capabilities and battle-tested brand marketing experience to creatively connect the dots between what consumers think, feel, say...

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Shapiro+Raj
AVIA
Healthtech
Chicago
192 Employees
21 Benefits Hiring Now

AVIA is the nation's leading digital transformation partner for healthcare organizations. AVIA provides unique market intelligence, proven collaborative tools, and results-based consulting to help solve healthcare’s biggest strategic challenges. Learn more about AVIA and stay up to date with the latest digital insights and best practices, at aviahealth.com. AVIA Connect is the leading online marketplace for health care leaders to...

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AVIA
Henricksen & Company, Inc.
Professional Services • Design

Henricksen is a full-service contract furniture, flooring, and architectural products dealership specializing in office, healthcare, and education environments, providing best-in-class, full-service contract furniture and architectural solutions for workplace needs.

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Henricksen & Company, Inc.
Alliance Ground International
Logistics • Transportation
2 Offices
484 Employees
2 Benefits Hiring Now

Alliance Ground International, LLC. is a cargo ground handling company in the United States. Considered the best in the business, Alliance Ground International provides the best value for our airline partners. We offer a proven, cost effective, and low risk solution meeting or exceeding all requirements of our clients. Our mission is to ensure safe, on-time and efficient cargo, ramp...

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Alliance Ground International
Cushman & Wakefield
33 Offices
53,000 Employees
35 Benefits Hiring Now

Cushman & Wakefield (NYSE: CWK) is a leading global real estate services firm that delivers exceptional value for real estate occupiers and owners. Cushman & Wakefield is among the largest real estate services firms with approximately 53,000 employees in 400 offices and 60 countries. In 2019, the firm had revenue of $8.8 billion across core services of property, facilities and...

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Cushman & Wakefield

Cushman & Wakefield's Top Stability & Growth Strengths

Strong Market Position & Advantage: Industry brand rankings and peer comparisons place the firm in the global top tier, with Lipsey listing it near the top and trade press grouping it alongside CBRE and JLL. Scale reported in its filings—about 53,000 employees, operations in nearly 60 countries, and a multibillion‑dollar revenue base—supports durable competitive reach.

Strong Revenue Growth: Full-year 2025 revenue increased versus 2024 and the company reported its highest first‑quarter revenue on record in Q1 2026, with broad-based gains across Leasing, Capital Markets, Services, and Valuation. Disclosures also indicate continued year‑over‑year growth into early 2026.

Diversified Revenue Streams: A full-service platform spanning Services, Leasing, Capital Markets, and Valuation, along with a large property/facilities management base, spreads risk across cycles. Management highlights a growing Services mix that is more recurring and resilient.

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Dental Dreams
Healthtech
51 Offices
660 Employees
12 Benefits Hiring Now

Founded in 2001 by Dr. Sameera Hussain, Dental Dreams is a dynamic, growing company with offices in Illinois, Texas, Massachusetts, Pennsylvania, Maryland, Virginia, New Mexico, South Carolina, Louisiana, California, Michigan, and Washington, DC. Its mission is to provide high quality dental services in first-class facilities to people in underserved communities. The group has more than 150 dentists and over 500...

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Dental Dreams
Distinctive Schools
Kids + Family • Social Impact

Distinctive Schools is a 501(c)(3) non-profit organization dedicated to supporting and accelerating the work of public charter schools serving students from traditionally underserved backgrounds. The organization leads a collaborative and innovative public education transformation aimed at elevating access, achievement, and belonging, ensuring that every student thrives throughout their education, career, and life through diverse, joyful, and welcoming communities rooted in...

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Distinctive Schools
Above Lending
Fintech • Financial Services
Chicago
100 Employees
13 Benefits Hiring Now
Above Lending is a next-generation consumer lender. We help our clients achieve their financial aspirations.

​​Above Lending, Inc. is a next-generation consumer lender. We provide our clients with simple and transparent products aimed to help them achieve their financial aspirations and take control of their debt. With competitive rates and personalized support from our loan specialists, our mission is to simplify the lending process and help borrowers attain financial well-being. We are passionate about making...

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Above Lending
Jackson
Financial Services
4 Offices
3,409 Employees
23 Benefits Hiring Now

Jackson® is committed to helping clarify the complexity of retirement planning. Our range of annuity products, financial know-how, history of award-winning service*, and streamlined experiences strive to reduce the confusion that complicates retirement plans. We dedicate our time, money, and resources to strengthening financial literacy, striving to make sure every American has access to the resources they need to master their...

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Jackson
Frontage Laboratories, Inc
Healthtech • Biotech • Pharmaceutical
8 Offices
591 Employees
21 Benefits Hiring Now

Frontage Laboratories, Inc. is a CRO that provides integrated, science-driven, product development services throughout the drug discovery and development process to enable pharmaceutical and biotechnology companies to achieve their development goals. Comprehensive services include drug metabolism and pharmacokinetics, analytical testing and formulation development, preclinical and clinical trial material manufacturing, bioanalysis, preclinical safety and toxicology assessment and early phase clinical studies....

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Frontage Laboratories, Inc

Frontage Laboratories, Inc's Top Stability & Growth Strengths

Market Expansion: Recent announcements describe expansion of early‑phase clinical capabilities in 2026 alongside new and enlarged sites in Exton, Pennsylvania and Europe, indicating broader geographic reach and capacity. Acquisitions and a rising backlog/future contracted revenue further point to continuing expansion into additional markets and regions.

Product Line Growth: New GMP CRDMO capacity came online with a 46,300‑sq‑ft facility opened in 2025 and fully validated by late 2025, adding nine GMP suites and related labs. The 2026 acquisition of a CAP‑accredited central lab in China and added early‑phase clinical capabilities broaden the service portfolio.

Strong Revenue Growth: Recent interim results show first‑half 2026 revenue up 17.1% year over year with net profit more than doubling, signaling a rebound from prior softness. Purchase orders/backlog also increased versus prior periods, supporting near‑term top‑line momentum.

Citrin Cooperman
Professional Services • Consulting • Financial Services • Cybersecurity
28 Offices
3,502 Employees
Hiring Now

Citrin Cooperman is one of the largest professional services firms in the United States, founded in 1979. It provides comprehensive tax, accounting, and advisory services to middle-market companies and high-net-worth individuals. The firm delivers a tailored, integrated business approach and proactive guidance to help clients achieve their business and personal financial goals across various global markets.

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Citrin Cooperman

Citrin Cooperman's Top Stability & Growth Strengths

Strong Revenue Growth: Revenue is portrayed as climbing rapidly, with industry lists placing the firm around the Top 20 at approximately $985M and leadership referencing "over a billion dollars in annualized revenue." Multiple sources indicate the business has more than doubled since 2021 through a mix of organic expansion and acquisitions.

Investor Backing & Capital Strength: Capital support is underscored by New Mountain Capital’s 2021 majority investment and Blackstone’s January 2025 acquisition of that stake, bringing additional resources for expansion. The unusual secondary transaction is explicitly framed as fueling the firm’s next chapter of growth and continued M&A.

Market Expansion: Geographic and service-line reach is broadening via a steady cadence of acquisitions, including ORBA in Chicago (2025) and add-ons across Ohio, New England, and Florida through 2025–2026. National and regional leader mentions and niche recognitions (e.g., construction accounting, entertainment valuation) reflect a widening footprint across key markets and sectors.

American Institutes for Research
Edtech • Healthtech
13 Offices
2,117 Employees
40 Benefits Hiring Now
Advancing Evidence. Improving Lives.

Established in 1946, the American Institutes for Research (AIR) is a nonpartisan, non-profit organization that conducts behavioral and social science research and delivers technical assistance both domestically and internationally in the areas of education, health, and the workforce.

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American Institutes for Research
Harbor (harborglobal)
Information Technology • Consulting
4 Offices
644 Employees
28 Benefits Hiring Now

Harbor is the preeminent provider of expert services across strategy, legal technology, operations, and intelligence. Our globally integrated team of 800 strategists, technologists, and specialists navigates alongside our clients – leading law firms, corporations, and their law departments – to provide essential resources and invaluable insights. Anchored in a rich heritage of deep knowledge, steadfast relationships, and mutual respect, our...

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Harbor (harborglobal)

Harbor (harborglobal)'s Top Stability & Growth Strengths

Investor Backing & Capital Strength: Investor support is evident through BayPine’s majority investment and continued deal activity, signaling access to capital and confidence in the platform’s scaling plan. Evidence indicates this backing has enabled multiple acquisitions and leadership build‑outs to accelerate growth.

Market Expansion: Geographic reach continues to widen via acquisitions across the UK, Europe, and APAC, alongside a larger Chicago headquarters move. Evidence indicates these bolt‑ons (e.g., Pinnacle, Ascertus, iTrain, CE Global Partners, Encoretech) have extended international delivery and presence.

Product Line Growth: New offerings such as Harbor Deploy for AI deployment and the Human Capital Management Advisory practice expand service breadth into adjacent, high‑demand areas. Research initiatives and benchmarking programs further deepen the solutions portfolio and market relevance.

Jet Support Services, Inc.
Chicago
413 Employees
24 Benefits Hiring Now

For more than 30 years, Jet Support Services, Inc. (JSSI), has been the leading independent provider of maintenance support and financial services to the business aviation industry. JSSI is responsible for maintaining in excess of 2,000 business jets, regional jets and helicopters across the globe and serves customers through an infrastructure of certified technical advisors. JSSI leverages this technical knowledge,...

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Jet Support Services, Inc.
Constellation Brands
Food • Marketing Tech
13 Offices
5,837 Employees
35 Benefits Hiring Now

Constellation Brands (NYSE: STZ) is a leading international producer and marketer of beer, wine, and spirits with operations in the U.S., Mexico, New Zealand, and Italy. Our mission is to build brands that people love because we believe elevating human connections is Worth Reaching For. It’s worth our dedication, hard work, and calculated risks to anticipate market trends and deliver...

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Constellation Brands

Constellation Brands's Top Stability & Growth Strengths

Strong Market Position & Advantage: Constellation is positioned as the #1 U.S. high-end/imported beer supplier, anchored by Modelo Especial’s leading dollar-sales rank and ongoing share gains across most states despite an industry downturn.

Healthy Cash Flow: Operating cash flow is described as strengthening alongside sizable free cash flow, supporting ongoing buybacks/dividends and providing flexibility while the portfolio is being reshaped.

Future-Ready Strategy: The company has narrowed wine and spirits to higher-end brands and is investing in brewery capacity and targeted innovations, signaling a deliberate pivot toward higher-margin segments and longer-term recovery.

Syska Hennessy Group
Information Technology • Design
19 Offices
768 Employees
19 Benefits Hiring Now

Consult ■ Engineer ■ Commission At Syska Hennessy Group, we create exceptional environments. By combining our expertise with all of the next generation tools that technology has to offer, we provide high performance engineering, consulting and commissioning solutions for the built environment. We are committed to being the best, to advancing engineering design practice, and to supporting our clients with integrity and...

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Syska Hennessy Group

Syska Hennessy Group's Top Stability & Growth Strengths

Strong Revenue Growth: ENR coverage cites year-over-year gains in the West region and trade‑press rankings tied to multi‑year expansion, indicating ongoing top‑line momentum. Specialty lists also show sizable MEP design revenue, reinforcing recent growth relative to peers.

Strong Market Position & Advantage: Repeated top‑tier placements in MEP‑focused rankings and ENR regional “Design Firm of the Year” honors point to competitive strength in mission‑critical/data center and complex building systems. Discipline‑level standings in electrical and data centers further support segment leadership.

Market Expansion: Recent office openings and new leases (e.g., Riyadh, Tampa, Chicago) alongside a large multi‑office footprint suggest deliberate geographic growth. Activity in both U.S. regions and the Middle East indicates widening market coverage.

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