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Best New York Business Consultants

What to Look for in a Business Consultant

When selecting a business consultant in New York, several critical factors need to be considered to ensure you make an informed decision. The reputation and track record of the consultant are paramount. You want to work with professionals who have a proven history of helping businesses like yours achieve their goals. This includes looking at client testimonials, case studies, and reviews on platforms like Yelp and Clutch. For instance, TheoremOne, a New York-based firm, is highly praised for its thought-leadership and design capabilities, consistently adding value throughout their partnerships​​​​.

Credentials and qualifications are another essential aspect. Consultants should have relevant experience and qualifications that align with your business needs. This might include specific industry expertise or a background in strategic planning, marketing, financial consulting, or IT. Gaussian Consulting, for example, specializes in financial strategy and has been instrumental in helping clients achieve profitability and success through innovative management styles and communication​​​​.

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The range of services offered by the consulting firm is also crucial. Depending on your needs, you might require a consultant who can provide comprehensive services, from market research and marketing strategy to IT and financial consulting. Firms like Vention, which offers a broad spectrum of services including custom software development and IT strategy consulting, are ideal for businesses looking to leverage technology for growth​​​​.

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Cost is another significant consideration. Understanding the consultant’s fee structure and ensuring it fits within your budget is essential. This includes looking at the minimum project size and hourly rates. For instance, Kelly L. Campbell, a consultancy specializing in corporate training and HR consulting, has a minimum project size of $10,000 and charges between $200 to $300 per hour​​​​.

Finally, consider the consultant’s approach and methodology. You want to work with consultants who take a personalized approach to understand your business’s unique challenges and goals. Consultants like Gaussian Consulting are noted for their personalized and effective financial strategies, which have led to innovative products and increased profitability for their clients​​​​.

Top New York Business Consultants

Here are some of the top-rated business consultants in New York, based on reviews and ratings from platforms like Yelp and Clutch:

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1. TheoremOne

Location: 33 Irving Place, New York, NY 10003 Services: Custom Software Development, Enterprise App Modernization, IoT Development, IT Strategy Consulting Clients: AT&T, Caterpillar, iMercatus Holdings LLC, BSI | British Standards Institute Mission Health Reviews: Praised for thought-leadership in design and adding value at every step​​​​.

Contact Information:

2. Gaussian Consulting

Location: 364 8th St, Brooklyn, NY 11215 Services: Market Research, Marketing Strategy, IT Strategy Consulting, Financial Consulting Clients: Housing Works, PILOT, Viewpointe, Event Predictor Buffy Reviews: Known for excellent management style and communication, helping clients achieve profitability​​​​.

Contact Information:

  • Website: Not listed
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  • Social Media: Not listed

3. Kelly L. Campbell

Location: 21 W 46th St #503, New York, NY 10036 Services: Corporate Training, HR Consulting Clients: McCracken, Paper Tiger, Active Ingredients, Digital Meaning, Toolbox Creative Reviews: Recognized for improving brand positioning and successful lead generation efforts​​​​.

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Contact Information:

  • Website: Not listed
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  • Social Media: Not listed

4. Vention

Location: New York, NY Services: Custom Software Development, IT Strategy Consulting, Digital Strategy, AI Development Clients: IBM, PayPal, pwc, IC Markets Reviews: Highly rated for service excellence and timeliness​​.

Contact Information:

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5. Manisofts

Location: 1070 Clifton Avenue, Clifton, NJ 07013 Services: Ecommerce Marketing, IT Strategy Consulting Clients: Adidas, Alibaba Reviews: Clients appreciate their reliability and professional approach​​.

Contact Information:

  • Website:
  • Phone: Not listed
  • Social Media: Not listed

6. CultureStrategy

Location: New York, NY Services: HR Services, Corporate Training, Business Consulting Clients: GP Reviews: Known for innovative solutions in HR and business consulting​​.

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Reviews Highlight

Gaussian Consulting

Gaussian Consulting has received numerous accolades for their management style and innovative financial strategies. One client noted, “Gaussian Consulting has been instrumental in making our chosen product profitable and successful through their excellent management style and communication. Their financial strategy has also been effective in supporting our supply chain, leading to innovative products that have scaled award-winning products and generated profits and cash”​​​​.


TheoremOne is celebrated for their thought-leadership in design and their ability to add value at every step of their partnerships. One reviewer stated, “TheoremOne has demonstrated thought-leadership in design, adding value at every step of the way and preparing for the last phase of our partnership. Their expertise and commitment to delivering value are unparalleled”​​​​.

Kelly L. Campbell

Kelly L. Campbell is recognized for their holistic approach to rebranding and business coaching. One client shared, “Kelly L. Campbell’s keen insights got to the root and heart of the matter, leading to lasting change and success. Their holistic approach to rebranding has increased our company morale and transformed our sales process, leading to greater lead generation and improved daily operations”​​​​.

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Vention stands out for their service excellence and timely delivery. A client mentioned, “Vention’s account-based marketing ties in so well that it creates a solution that’s different from any other vendors’. Their timeliness and service excellence are top-notch”​​.

Detailed Consultant Information

Consultant Services Offered Clients Contact Information Reviews Summary
TheoremOne Custom Software Development, IT Strategy Consulting AT&T, Caterpillar Thought-leadership in design, value addition throughout partnerships​​​​
Gaussian Consulting Financial Consulting, Marketing Strategy, IT Strategy Consulting Housing Works, PILOT Not listed Excellent management style, innovative financial strategies​​​​
Kelly L. Campbell Corporate Training, HR Consulting McCracken, Paper Tiger Not listed Holistic approach to rebranding, improved lead generation​​​​
Vention Custom Software Development, AI Development, Digital Strategy IBM, PayPal, pwc Service excellence, timely delivery​​
Manisofts Ecommerce Marketing, IT Strategy Consulting Adidas, Alibaba Reliable, professional, increased sales​​
CultureStrategy HR Services, Corporate Training, Business Consulting GP Innovative HR and business consulting solutions​​


Choosing the right business consultant in New York involves considering several factors, including reputation, credentials, range of services, cost, and approach. By thoroughly evaluating these aspects and reviewing client feedback, you can make an informed decision that will help your business achieve its goals. The consultants highlighted in this article are among the best in New York, offering a range of services that can cater to diverse business needs. Whether you need help with financial strategies, IT consulting, or HR services, these top-rated consultants have proven their ability to deliver exceptional results.

For more detailed reviews and contact information, consider visiting the individual consultant’s websites or their profiles on platforms like Yelp and Clutch​​​​​​​​.


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