Top Tech Companies in Chicago, IL (7,852)
Somewear’s software platform and satellite-powered hardware enable commercial and government teams to maintain situational awareness during high-pressure operations — in any environment. Somewear serves a wide range of customers including helicopter paramedics, backcountry explorers, firefighters, and operators within the US Department of Defense. The company’s purpose is to build best-in-class solutions that keep people in touch, informed, and safe anywhere...
Greenberg Traurig, LLP has more than 2650 attorneys in 45 locations in the United States, Europe and the Middle East, Latin America, and Asia. The firm is a 2022 BTI “Highly Recommended Law Firm” for superior client service and is consistently among the top firms on the Am Law Global 100 and NLJ 250. Greenberg Traurig is Mansfield Rule 6.0...
Greenberg Traurig's Top Stability & Growth Strengths
Strong Market Position & Advantage: Strong market standing is reflected in repeated references to top-tier scale, high global revenue, and broad recognition across many practice areas and regions. Breadth and bench depth are positioned as advantages for multi-jurisdictional, cross-disciplinary work.
Strong Revenue Growth: Sustained topline momentum is indicated by a multi-year streak of record revenues, including more than $2.3B in FY2023 and widely cited industry tallies around $2.62B for FY2024. Growth is framed as durable rather than a one-off spike, supported by continued demand in multiple practices.
Market Expansion: Geographic expansion is evidenced by new and growing-office activity, including an Abu Dhabi launch and other international build-outs, alongside U.S. office moves and additional leased space. Targeted practice integrations and sector emphasis (e.g., digital infrastructure/data centers) are presented as expansion enablers.
Shriners Children’s is a nonprofit pediatric healthcare system providing specialized medical care through hospitals, outpatient clinics, ambulatory care centers, and outreach locations. Its mission is to deliver compassionate, high-quality, family-centered care, regardless of a family’s ability to pay or insurance status. The organization also advances pediatric research and multidisciplinary education to improve children’s health, quality of life, and long-term outcomes.
Based in Cincinnati, Ohio, the operations of Great American Insurance Group are engaged primarily in property and casualty insurance, focusing on specialty commercial products for businesses. We have more than 30 specialty property and casualty insurance businesses, and in 2021, approximately 50% of our gross written premium in our property and casualty operations was generated by business units with a...
Great American Insurance Group's Top Stability & Growth Strengths
Profitability: Underwriting results are consistently strong, with record profits and low combined ratios reported in recent periods. Feedback suggests margins have improved even as the company remained selective on risk.
Strong Market Position & Advantage: The company is described as a leader across multiple specialty P&C niches, including crop and ocean marine, with many divisions holding top-10 positions in their markets. Authorization to issue federal crop policies and visible niche rankings reinforce a durable competitive footing.
Investor Backing & Capital Strength: Capital resources appear robust, supported by recurring dividend increases and growth in book value. Management references excess capital and flexibility for organic expansion, start-ups, and acquisitions.
Lutheran Social Services of Illinois (LSSI) is a statewide nonprofit human-services provider serving children, adults, seniors, and families across Illinois. It offers foster care, mental-health and substance-use treatment, affordable senior housing, home care, residential programs for people with intellectual and developmental disabilities, and support for people and families affected by incarceration. Its mission is to bring healing, justice, and wholeness...
Gilbane, Inc. is a privately held, family-owned global builder and real estate developer. Through Gilbane Building Company and Gilbane Development Company, it provides construction management, general contracting, design-build, facilities management, real estate development, investment, property management, and consulting services. Operating across North America and internationally, Gilbane delivers complex projects and develops communities while emphasizing safety, quality, client-focused collaboration, and positive...
A Safe Haven LLC is a non-profit social enterprise providing comprehensive behavioral health services, including psychiatry and substance use treatment. In partnership with the A Safe Haven Foundation, it offers individualized case management, education, job training, and supportive housing solutions to help individuals in crisis transition from homelessness to self-sufficiency. The organization also operates a licensed community pharmacy.
Handler Law, LLP is a leading Chicago-based law firm recognized for innovative legal, tax, and business advisory services, dedicated to serving ultra-high-net-worth families, family offices, and private businesses.
EVERYWHERE SECURITY MATTERS. Inter-Con Security is a multinational private security company operating in North America, South America, and Africa. We provide a wide range of security services, including security guards, mobile patrols, emergency services, K9 security, executive protection, concierge services, off-duty officers, and more. We are proud to serve government agencies, Fortune 100 companies, private businesses, and individuals both domestically and...
Inter-Con Security's Top Stability & Growth Strengths
Strong Market Position & Advantage: Scale, rankings, and high-profile contracts place the company among the largest providers in North America and a leader in complex, high-requirement security. Industry recognition and awards, alongside a prominent role with government, critical infrastructure, and enterprise clients, underscore this position.
Strong Revenue Growth: Repeated Inc. 5000 placements and company statements about rapid, largely organic expansion indicate sustained multi-year growth. Reports of substantial size increases and ongoing major contract wins support a robust growth trajectory.
Innovation-Driven Growth: Adoption of proprietary platforms such as the AI-powered IConIQ system signals active investment in scalable, modern security operations. Technology additions are positioned as integral to meeting enterprise risk management needs during expansion.
Dance To EvOLvE offers engaging dance classes for children aged 2 to 12, focusing on ballet, hip hop, and creative movement. With locations in Chicago, San Diego, and Cleveland, the company provides a nurturing, non-competitive environment that fosters confidence and self-expression through dance.
City Year helps students and schools succeed, while preparing the next generation of civically engaged leaders who can work across lines of difference. Diverse teams of City Year AmeriCorps members provide support to students, classrooms and the whole school. Schools that partner with City Year are up to two to three times more likely to improve in English and math...
Black Diamond Solutions is a security focused technology services firm. Founded in 2004, BDS is based in Chicago with clients all across the US. We offer fully outsourced network security services designed to protect your company from the financial, operational, and reputational consequences of cyber crime and ransomware.
The Community Solution Education System is an integrated, nonprofit system of colleges and universities that work collaboratively to advance institutional success and student outcomes.
Reverb is building a community that music makers from all walks of life turn to for inspiration to fuel their passions, tools to create new music, and more. Our team comes to work each day with one goal: To help music makers all over the world and sellers of all sizes connect over the perfect piece of music gear.
Reverb's Top Stability & Growth Strengths
Strong Market Position & Advantage: Reverb is widely described as the largest dedicated online marketplace for musical instruments, with network effects, robust pricing tools, and Etsy‑reported GMS underscoring meaningful transaction scale in its niche. This leadership is strongest in used and vintage gear even as broader channels compete in general resale.
Innovation-Driven Growth: The Price Guide and Reverb Price Index aggregate real transaction data, improving pricing efficiency and attracting participants in a classic vertical‑platform loop. These tools reinforce marketplace liquidity and repeat usage within the music‑gear category.
Investor Backing & Capital Strength: Post‑sale on June 2, 2025, backing from Creator Partners and Servco—an owner with deep musical‑instrument ties (e.g., Fender)—signals aligned, well‑resourced ownership. Company statements emphasize continued product investment and growth focus under private ownership.
NielsenIQ is the industry leader in global measurement and data analytics, and the most trusted source for retail and consumer intelligence. We deliver the complete truth to retailers, manufacturers, and our partners through our comprehensive data sets and powerful insights. We enable businesses to make critical decisions confidently, accelerating growth and optimizing performance.
NielsenIQ's Top Stability & Growth Strengths
Strong Market Position & Advantage: Multiple regulatory and industry sources characterize NIQ as a leading provider in retail and CPG measurement, with the GfK combination broadening category and geographic reach. Added retailer/channel coverage and omnichannel capabilities reinforce a scaled market position.
Strong Revenue Growth: Recent filings show year-over-year revenue expansion in 2025, with core Intelligence growing and management guiding for continued growth in 2026. Growth was broad-based across regions and supported by cross-sell of newer capabilities.
Healthy Cash Flow: The company reported positive levered free cash flow and expanding adjusted EBITDA in 2025. Management also outlined efficiency actions intended to support further margin improvement.
Altus Group Limited is a leading provider of software, data solutions and independent advisory services to the global commercial real estate industry. Our businesses reflects decades of experience, a range of expertise, and technology-enabled capabilities empowering clients to analyze, gain insight and recognize value on their real estate investments. Headquartered in Canada, we have approximately 2,400 employees around the world,...
Red Roof is a Columbus, Ohio-based economy hotel company operating more than 400 properties nationwide, including franchised and corporate-owned hotels. Founded in 1972, it serves millions of guests annually and aims to provide savings without sacrificing comfort. The brand emphasizes a warm, welcoming guest experience, with conveniences such as free Wi-Fi and a Hassle-Free Guarantee to address unresolved stay concerns...
MAKING HEALTHCARE SAFER The philosophy that guides Daniels - striving to make a safer environment for everyone involved in healthcare. Daniels has operations in Australia, USA, Canada, New Zealand, UK, Europe and South Africa and is widely regarded as a leader of innovation in the medical waste space. Daniels' flagship product - the Sharpsmart collector, was launched in 1999 and is...
Daniels Health's Top Stability & Growth Strengths
Market Expansion: Expansion moves including a merger, facility additions, and emphasis on onboarding new customers point to a growing footprint and client base. Operations across six countries and a broad U.S. network reinforce reach and scale.
Innovation-Driven Growth: Clinically engineered, reusable solutions like the peer-reviewed Sharpsmart and non-incineration treatment technologies underpin product-led adoption. Emphasis on safety and sustainability aligns with evolving hospital standards and environmental priorities.
Strong Market Position & Advantage: Positioning as a prominent competitor with extensive infrastructure, high service reliability, and partnership orientation supports competitive advantage. Customer satisfaction signals such as strong NPS and delivery performance suggest durable standing with healthcare institutions.
Salas O’Brien is an employee-owned engineering and technical services firm focused on advancing the human experience through the built environment. Our team is engineered for impact™, helping clients achieve critical goals, advancing our team members through growth and opportunity, and operating at the center of important global issues, including sustainability and decarbonization. We are a top firm as ranked by...
Salas O'Brien's Top Stability & Growth Strengths
Strong Revenue Growth: Company communications and industry rankings point to sustained revenue increases over multiple years with momentum attributed to a mix of strategic mergers and organic gains. Recognition on growth lists and disclosed gains across 2020–2026 reinforce a strong upward trajectory.
Strong Market Position & Advantage: Industry lists consistently place the firm among top design companies (e.g., ENR Top 500 at #31, MEP Giants top 5, BD+C top engineering firms), indicating significant scale and influence in core markets. Sector and supplemental rankings further underscore leadership in MEP and mission‑critical domains.
Strategic Partnerships: Recent recognitions and announcements highlight expanded collaboration with Siemens and awards from Rockwell Automation, alongside system integrator accolades. These relationships reinforce positioning in digital, automation, and smart infrastructure ecosystems.

































