New York City serves as the central point for all global business activities, innovative research, and financial operations. The market needs skilled business advisors, particularly business consulting firms, because thousands of startups, mid-sized companies, and international corporations operate in one of the most challenging business environments. Companies depend on their consulting partners to help them achieve business growth, enter new markets, increase operational efficiency, and solve difficult problems.
In 2026, New York is home to some of the most influential consulting organizations in the world. The firms use their strategic knowledge, analytical capabilities, digital skills and practical implementation abilities to assist businesses with their growth needs. The New York consulting market provides business solutions that serve all company development needs through its global strategy firms, technology consulting companies and specialized boutique firms.
The guide presents an analysis of 20 leading New York business consulting firms that assist organizations with their growth needs by showing their main strengths and service areas and their ability to deliver measurable outcomes to clients.
Why Businesses in New York Turn to Consulting Firms
New York presents businesses with distinct obstacles that they must overcome to achieve their expansion goals. Businesses face growth challenges and often turn to business consulting firms for professional assistance in managing the dual pressures of intense competition, complex regulations, increasing operational costs, and fast-moving technological advancements. Organizations rely on consulting firms to solve business problems by providing unbiased viewpoints, established methods, and practical implementation assistance.
In 2026, companies seek consultants not just for advice, but for implementation, performance improvement, and long-term capability building. The firms listed below are recognized for their ability to deliver real-world results across industries.
Global Strategy and Management Consulting Leaders
These firms are known for advising senior executives on high-impact strategic decisions and enterprise-wide transformations.
1. McKinsey & Company
McKinsey & Company operates as a major management consulting firm that uses its New York office to control global strategic operations. The firm partners with Fortune 500 companies, governments, and large institutions to create high-impact projects which involve corporate strategy development, digital transformation, operational excellence and leadership development. McKinsey operates as a leading organisation because it uses data to conduct research and provide industry-specific knowledge. The firm enables organizations to achieve faster growth through its advanced analytics and AI decision-making systems and its methods for creating long-term value. McKinsey functions as a reliable consultant for organizations which need assistance in handling difficult growth situations because it can work with both boardroom executives and operational staff.
2. Boston Consulting Group (BCG)
Boston Consulting Group combines its ability to conduct thorough analysis with its capacity to develop creative solutions. The New York office serves as a vital resource that provides consulting services to clients from the finance, healthcare, technology and consumer sectors. BCG supports business expansion by developing growth strategies which include digital transformation, artificial intelligence implementation and business structure changes. The firm dedicates its resources toward sustainable development, advanced analytics and agile operating systems in its 2026 operations. BCG’s collaborative environment promotes innovative research, which helps clients develop fresh business strategies that create competitive edges.
3. Bain & Company
Bain & Company establishes its reputation through its dedication to implementation, which produces quantifiable outcomes. The firm works closely with leadership teams to improve profitability, enhance customer loyalty, and accelerate growth. Bain’s New York consultants work extensively in private equity to assist portfolio companies with their growth and sustainable value creation. Bain develops strategies through its practical implementation work, which helps businesses achieve actual performance growth. The results-driven approach of Bain makes it the top choice for companies that want to achieve both rapid and lasting business growth.
4. Oliver Wyman
Oliver Wyman operates as a worldwide consulting company that maintains its main office in New York while providing specialized knowledge about financial services, risk management and economic advisory work. The firm conducts extensive operations with banks, insurance companies, asset managers and regulators. Oliver Wyman helps organisations scale by improving risk frameworks, optimising capital allocation and enhancing operational efficiency. The company provides its insights about regulatory compliance and financial resilience for use during economic uncertainty and market volatility in 2026.
5. L.E.K. Consulting
L.E.K. Consulting provides expertise in developing growth strategies, entering new markets and merging and acquiring other companies. The firm helps corporations, private equity firms and their portfolio companies discover growth opportunities that can lead to business expansion. L.E.K. operates in New York, where it conducts in-depth market studies and develops industry knowledge about healthcare, technology and consumer markets. The firm’s consultants assist businesses in achieving faster growth through strategic alignment with execution methods and data-supported insights.
6. Roland Berger
Roland Berger operates as an international strategy consulting firm that originated in Europe and has begun to expand its operations into New York. The firm provides solutions for corporate strategy development, operational efficiency improvement and digital technology transformation. The company assists organisations in achieving business growth through efficiency improvements, business model modernization and international market navigation. The company possesses industry proficiency in automotive, manufacturing, energy and financial services sectors.
7. Kearney (formerly A.T. Kearney)
Kearney functions as a worldwide consulting organization which helps companies develop their strategic plans into operational results. Kearney’s New York office serves multinational corporations and industrial companies, and rapidly expanding businesses with its expertise in strategy and operations and supply chain transformation.
Kearney operates its procurement optimisation and operational efficiency capabilities as one of its fundamental business strengths. The firm helps companies optimise their supply chains while decreasing operational expenses and building operational resilience to face the challenges of complex international markets. This benefits organizations which must navigate different territorial boundaries and comply with various legal systems.
Kearney helps organisations develop their operational efficiency while assisting with growth strategy development, digital system implementation and organisational development. The consultants work with organisational leaders to create strategic business objectives which the team will implement, helping them achieve their actual business goals. In 2026, Kearney helps companies operate environmentally sustainable businesses by achieving operational cost savings while developing new products and creating sustained business value.
8. Strategy& (PwC)
Strategy& is PwC’s global strategy consulting arm, known for combining deep strategic thinking with execution capabilities. The New York-based firm provides its services to large enterprises, financial institutions, and public-sector organisations to solve their most difficult business problems.
Strategy& helps organisations develop corporate strategies while transforming their operations and planning their future growth strategies, which allows them to establish new competitive advantages in dynamic market conditions. The unique feature of Strategy& lies in its tight integration with the complete range of PwC consulting services, which encompass technology, risk management, tax advisory work, and financial consulting operations.
The integrated model of Strategy& enables the company to provide complete support for all operations, which include developing digital systems and ensuring compliance with regulatory standards. In 2026, Strategy& continues to be a trusted partner for organisations seeking to scale while managing risk, governance, and operational complexity. The organisation achieves success in extensive transformation projects because it aligns its future objectives with actual implementation processes.
9. Deloitte Consulting
Deloitte Consulting operates as a major worldwide consulting firm that maintains its base of operations in New York City. The consulting firm provides full-service consulting solutions, which include strategic planning and analytical services, technological solutions, cybersecurity protection and operational support.
Deloitte helps organisations scale by integrating business strategy with advanced digital capabilities, which include cloud computing, data analytics, AI and enterprise platforms. The organisation uses its multidisciplinary framework to help clients solve their complex problems, which involve technology, regulatory issues and organizational transformation.
Deloitte provides essential risk management and compliance expertise to New York organisations, which operate in a competitive industry that has strict regulatory requirements. The firm supports large businesses, financial institutions and government bodies that need to change their digital and operational processes. Deloitte helps organisations achieve sustainable growth through its combination of strategic insights and execution capabilities, which enable clients to build long-term organizational resilience.
10. PwC Advisory
PwC Advisory delivers complete business consulting services that help organizations develop their digital capabilities while creating financial plans, managing risks and enhancing their organisational processes. PwC New York helps organizations who face challenges with regulatory requirements and market changes through its extensive consulting services.
The firm helps businesses scale by modernising operations and improving financial performance, and strengthening governance frameworks. Clients use PwC advisory services, which combine audit, tax and legal knowledge to grow their businesses while meeting regulatory requirements and providing transparent business operations.
In 2026, PwC Advisory helps organisations in various industries, including financial services, healthcare, technology and real estate. The ability of PwC to create new solutions while managing associated dangers makes the company an ideal partner for businesses that need to grow their operations while following legal requirements in their controlled industry sector.
11. EY (EY-Parthenon)
The strategic consulting division of EY-Parthenon operates as the main consulting unit for EY, which merges traditional strategy methods with execution expertise. The New York-based firm provides its services to corporate executives, private equity firms, and government agencies, helping them solve problems related to their business growth and operational efficiency and their merger and acquisition activities.
EY-Parthenon provides expertise in growth strategy development, merger and acquisition management, investment portfolio management and business performance enhancement. The company assists organisations in their growth efforts by discovering valuable expansion paths and optimising their business processes and financial resource distribution. The company uses data to create its decision-making framework, which enables users to make choices in challenging market environments.
The main benefit of EY-Parthenon operations arises from its ability to function as part of EY consulting services, which extend to technology services, risk management and tax consulting and assurance operations. The system enables clients to execute their processes, moving from strategy development to execution, without experiencing any operational interruptions. The organization maintains its role as a reliable growth partner for companies that want to achieve scalable success while they undergo organizational transformation, regulatory compliance and structural changes in 2026.
12. KPMG Advisory
KPMG Advisory provides consulting services that help organisations handle their risks and maintain regulatory compliance while improving their financial systems and operational processes. KPMG serves a vital function by assisting New York businesses to expand their operations while maintaining their need for operational control and compliance with regulations.
The firm provides its services to business clients who operate in sectors that include financial services, healthcare, real estate, and technology. KPMG assists organisations to boost their financial results while they establish new internal control systems and develop stronger risk management processes. The company employs its organised and systematic method to help businesses that experience growth challenges, which require them to maintain their existing operations.
KPMG Advisory helps businesses achieve digital finance transformation by implementing new reporting systems that provide more accurate data and better support decision-making. In 2026, KPMG remains a preferred consulting partner for organisations seeking sustainable, compliant growth in complex regulatory landscapes.
13. Accenture
Accenture functions as a worldwide authority in three fields, which include digital transformation, cloud computing and AI-based consulting services. Accenture assists organisations in New York to grow their operations by modernizing their systems, enhancing customer interactions and using new technological advancements.
The firm provides consulting services, which include four main areas of work: strategy development, technology implementation, digital innovation and managed services. The ability of Accenture to manage extensive transformation projects distinguishes it from most conventional consulting companies. The company develops digital operating systems through its investment in artificial intelligence, automation, and data analytics.
Accenture provides support to enterprises in multiple industries, which include finance, retail, healthcare and media through its services. Accenture uses its deep knowledge of industries together with its advanced technology capabilities to help organisations achieve faster growth, better efficiency, and sustainable market competitiveness.
14. IBM Consulting
IBM Consulting combines business strategy with advanced technological knowledge, which enables it to serve as an effective partner for enterprise transformation projects. In New York, IBM Consulting assists large businesses in growing their operations through artificial intelligence implementation, data analytics, and hybrid cloud technology.
The firm assists companies in updating their outdated systems while enhancing their IT performance and establishing frameworks for making decisions based on data. IBM technology platforms enable clients to move rapidly from their strategic plans into their operational execution because of IBM’s close technological platform integration.
IBM Consulting maintains its essential role in assisting organisations with secure and efficient scaling processes, which will occur throughout 2026. The organisation uses its technical assets together with its sector-specific knowledge to handle complex changes that occur in controlled environments that handle large amounts of data.
15. Capgemini
Capgemini operates as an international consulting company that provides technology solutions through its work in digital transformation, process automation and system integration. Capgemini enables businesses to expand their operations through its digital platform and analytical and cloud solution capabilities, which it provides from its strong base in New York City.
The firm supports organisations with digital strategy, system integration, and operational modernisation, enabling faster and more efficient growth. The global delivery system of Capgemini enables clients to expand their business operations while keeping operational expenses low and delivering quality services.
Capgemini helps businesses from different sectors to handle digital disruption and market competition until the year 2026. The company provides practical implementation solutions together with technology-driven development services, which create scalable and sustainable business growth for its clients.
16. Cognizant Consulting
Cognizant Consulting specialises in assisting organisations to grow their operations through digital modernisation and IT transformation, and their enterprise technology solutions. The firm serves large businesses and fast-expanding companies from its main office in New York while helping clients create new products and maintain their existing business operations.
Cognizant delivers its services to companies operating in various sectors, which include healthcare, financial services, retail and technology. The company provides consulting services that assist clients in transforming their outdated systems, enhancing their digital processes and developing cloud computing solutions. Cognizant enables organisations to achieve operational efficiency by creating technology plans that support their long-term business goals.
In 2026, Cognizant serves as a vital component in supporting digital-first business operations. The company uses its extensive technical knowledge together with its understanding of different industries to help customers expand their business operations without hindering their essential functions.
17. Slalom Consulting
Slalom functions as a consulting organization which provides people-focused services, while its consultants excel at agile transformation, cloud technology development and organisational transformation projects. The main customers of Slalom in New York include mid-sized businesses and rapidly expanding companies, which require efficient and growth-oriented business solutions.
The firm takes a hands-on approach, working closely with leadership teams to implement digital tools, improve customer experiences, and modernise internal processes. Slalom’s consultants focus on teamwork as they establish change management procedures, which they implement during each client project.
Businesses can achieve fast growth through Slalom’s ability to deliver agile solutions together with its understanding of local markets. Slalom continues to serve as a reliable partner for organizations which seek to develop their businesses through innovative solutions while preserving their core values and operational transparency.
18. Alvarez & Marsal
Alvarez & Marsal (A&M) is a global consulting firm that specialises in three areas: turnaround management, performance improvement and corporate restructuring. A&M operates its main office in New York City because organisations usually choose A&M when they encounter financial difficulties or complex operational issues.
The firm helps businesses scale by first stabilising operations, improving cash flow, and restoring profitability. A&M consultants work at different company management levels to achieve quick results through their direct approach to work.
In 2026, Alvarez & Marsal provides ongoing organisation support to industries including retail, healthcare, manufacturing and financial services. The company uses its practical approach together with its results-driven method to establish itself as the leading option for businesses that want sustainable growth after their disruptive periods.
19. AlixPartners
AlixPartners helps organisations that face critical transformations and need restructuring and operational support. The firm establishes its main operational base in New York City to help businesses that need to grow, recover or undergo major changes.
AlixPartners helps businesses scale under pressure by focusing on decisive execution, cost optimisation, and leadership alignment. The firm’s consultants bring deep experience in crisis management, which enables organisations to restore stability while establishing their path toward future development.
AlixPartners provides businesses with trustworthy advisory services during their complex transition processes. Organisations that operate in unstable markets or competitive markets find particular value in the firm’s capability to deliver strategic insights through rapid execution processes.
20. FTI Consulting
FTI Consulting provides a broad range of corporate finance services, which include restructuring services, economic advisory services and strategic advisory services. The firm operates from New York to assist organisations that face difficulties during their growth processes and transitional periods, and their attempts to manage risks.
FTI helps companies through its financial restructuring service, transaction advisory services, regulatory compliance services and strategic planning services. The organisation uses its diverse expertise to help businesses manage unpredictable situations while they pursue growth opportunities.
In 2026, FTI Consulting remains an essential partner for organisations that require assistance with decision-making during difficult situations. The combination of financial expertise and strategic advisory services enables businesses to grow their operations with both confidence and resilience.
How These Consulting Firms Help Businesses Scale Faster
Across all categories, these consulting firms enable faster scaling by:
- Defining clear growth strategies
- Improving operational efficiency
- Leveraging technology and data
- Managing risk and regulatory complexity
- Supporting leadership and workforce transformation
Their combined expertise allows businesses to grow sustainably while adapting to market change.
Conclusion
The consulting industry in New York City reached its peak level of development through its intense competition, which exists among worldwide consulting firms in 2026. The guide lists firms that provide organizations with optimal solutions to achieve faster growth, better operational efficiency and international competitiveness.
The establishment of a proper consulting partnership will enable your organisation to achieve rapid growth while minimising operational threats, whether your business needs are for startup expansion, mid-sized performance improvement or large-scale enterprise transformation. Your business will achieve sustainable success in international markets through your decision to select a consulting firm that matches your business needs, operational requirements, and organisational values.
