Top 100 Business Consulting Companies in New York City
The Best of November 2026Looking for a top consulting firm in New York City?
Consulting firms provide in-depth knowledge and understanding in relation to the client’s industry, technology, and processes. Having this kind of business partner empowers companies to make the best decisions for the business. They provide technical and corporate assistance, helping you resolve your challenges regardless of the industry you’re in.
Consulting firms provide a wide range of services, from creating business strategies to solidifying operational processes. Take your company to the next level by partnering with a firm today. Their knowledge and expertise are valuable assets for every business.
To assist you in your search for a partner, we’ve compiled this list of the top consulting companies in New York City. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
Jump to Most Reviewed Companies
List of the Best New York City Business Consulting Firms
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1261Undisclosed2 - 9 employeesCommack, NYBased in Commack, New York, Castillo CPA PC is a small Accounting company. Their services include Accounting and Business Consulting.Read More
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1262Undisclosed2 - 9 employeesHauppauge, NYArmbrecht & Company, CPA, PC, a small Accounting company, is based in Hauppauge, New York. The team specializes in Accounting and Business Consulting.Read More
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1263Undisclosed10 - 49 employeesPrinceton, NJLaunched in 1987, Smith & Smith CPA's , a small Accounting company, is in Arlington, Texas and Seagoville, Texas. Their team provides Accounting and Finance & Accounting Outsourcing (FAO).Read More
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1264Undisclosed2 - 9 employeesIslandia, NYFerrera Destefano & Caporusso CPA, PC is a small Accounting company in Islandia, New York. The team specializes in Accounting and Business Consulting.Read More
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1265Undisclosed2 - 9 employeesWestport, CTEscher Capital, a Business Consulting company, provide Business Consulting and Generative AI. They were launched in 2000.Read More
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1266Undisclosed10 - 49 employeesIslandia, NYAlessandro & Associates, CPA, PLLC is an Accounting company. Headquartered in Islandia, New York, the firm was founded in 1991. Their team specializes in Accounting and Business Consulting.Read More
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1267Undisclosed2 - 9 employeesYorktown Heights, NYBesselman & Kanner LLP is an Accounting company. They are based in Yorktown Heights, New York and have small team. Their team specializes in Accounting and Business Consulting.Read More
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1268Undisclosed2 - 9 employeesKings Park, NYEstablished in 1977, Hall CPA Group LLP is an Accounting company. Their team specializes in Accounting and Business Consulting.Read More
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1269UndisclosedFreelancer employeesWestport, CTZeiberg Consulting, a Business Consulting company, was launched in 1999. The firm offers Business Consulting and Corporate Training & Coaching.Read More
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1270Undisclosed2 - 9 employeesIslandia, NYSmall Accounting company Scotto & Melchiorre Group, LLC, is based in Islandia, New York. Their services include Accounting and Business Consulting.Read More
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1271Undisclosed2 - 9 employeesWeston, CTRockport Investment Partners is a Business Consulting company. They were established in 2015, and their services include Business Consulting and Fractional CFO Services.Read More
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1272Undisclosed2 - 9 employeesPoint Pleasant, NJSasso Consulting, LLC is a Compliance Consulting company established in 2013. Based in Point Pleasant, New Jersey, the team specializes in Compliance Consulting and Business Consulting.Read More
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1273Undisclosed2 - 9 employeesHauppauge, NYJanice Redmond & Associates, an Accounting company, is located in Hauppauge, New York. They focus on Accounting and Business Consulting.Read More
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1274Undisclosed2 - 9 employeesPatchogue, NYLori Di Marco, CPA, PLLC is an Accounting company. The agency is based in Patchogue, New York. Their team provides Accounting and Business Consulting.Read More
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1275$1,000+Freelancer employeesRonkonkoma, NYHawk Eye AI, LLC. Is an AI company headquartered in Ronkonkoma, New York. They focus on Artificial Intelligence and AI Agents and were launched in 2026.Read More
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1276Undisclosed10 - 49 employeesFlemington, NJEstablished in 1992, BKC, CPAs, PC is an Accounting company. Located in Flemington, New Jersey and Woodstown, New Jersey, the team offers Accounting and Business Consulting.Read More
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1277Undisclosed2 - 9 employeesCentral Islip, NYHeadquartered in Central Islip, New York, Myles S. Kassman & Company Inc is a small Accounting company. Their services include Accounting and Business Consulting.Read More
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1278Undisclosed2 - 9 employeesEast Islip, NYFounded in 2016, Mlcpas Inc is a small East Islip, New York-based Accounting company. Their team provides Accounting and Business Consulting.Read More
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1279Undisclosed2 - 9 employeesNorwalk, CTFounded in 2013, Isaac J. Zimmerman, CPA is an Accounting company. The small team focuses on Accounting and Commercial Development.Read More
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1280Undisclosed2 - 9 employeesSmithtown, NYSmall Accounting company Ross & Company CPA, PLLC, is headquartered in Smithtown, New York. Their services include Accounting and Business Consulting.Read More
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1281Undisclosed2 - 9 employeesIslandia, NYSkinnon & Faber is an Accounting company. The Islandia, New York-based firm provides Accounting and Business Consulting.Read More
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1282Undisclosed2 - 9 employeesLake Grove, NYJames Castaldo CPA & Associates is an Accounting company. Their small team is in Lake Grove, New York. Their services include Accounting and Business Consulting.Read More
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1283$5,000+50 - 249 employeesNew York, NYRead More
Based in New York, New York, Nomad Marketing Consulting, LLC is a midsize CRM consulting and SI company. They offer CRM consulting and SI, Business Consulting, and Marketing Strategy and were established in 2016.
Industries
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1284Undisclosed10 - 49 employeesRonkonkoma, NYBerrios & Associates, Inc. Is a small Accounting company. Launched in 1999, the team focuses on Accounting and Business Consulting.Read More
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1285Undisclosed2 - 9 employeesNesconset, NYBorsella & Company, CPA is an Accounting company. Their small team is located in Nesconset, New York. Their team offers Accounting and Business Consulting.Read More
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1286Undisclosed2 - 9 employeesNesconset, NYNick J. Giannitsas CPA, P.C. Is a small Nesconset, New York-based Accounting company. The team focuses on Accounting and Business Consulting.Read More
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1287Undisclosed2 - 9 employeesHolbrook, NYAccounting company Edwin Casanova, CPA P.C. Is in Holbrook, New York. Their services include Accounting and Business Consulting.Read More
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1288Undisclosed2 - 9 employeesTrenton, NJKingstonville, LLC is an Other Digital Marketing company located in Trenton, New Jersey. Their services include Other Digital Marketing and Web Design.Read More
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1289Undisclosed2 - 9 employeesRonkonkoma, NYIn Ronkonkoma, New York, Rost & Company, CPAs, P.C. Is an Accounting company. The team focuses on Accounting and Business Consulting.Read More
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1290Undisclosed50 - 249 employeesLawrence Township, NJLaunched in 2001, Optima Global Solutions is a midsize Lawrence Township, New Jersey-based Robotics Process Automation company. Their services include Robotics Process Automation and Market Research.Read More
Industries
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