Top Consulting Firms in Maine

Ratings Updated: December 5, 2025

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2 Leaders 15 Contenders

63 Companies

Country: United States

State: Maine

List of the Top Maine Consultants

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What are Featured Providers?
DataRoot Labs

4.9 22 reviews
Premier Verified

$10,000+

$50 - $99 / hr

10 - 49

Serves Maine

Services provided

30% AI Development

20% AI Agents

20% Generative AI +3 services

10% AI Consulting

10% IoT Development

10% Low/No Code Development

DataRoot Labs is a specialized AI and machine learning company known for developing sophisticated AI systems and scalable back-end solutions. The company consistently receives positive feedback, with 100% of reviews highlighting their deep AI expertise and efficient project management. Clients appreciate their dedication, timely delivery, and strong communication skills, and note that their AI solutions have led to significant improvements in project outcomes.

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Reviews mention Reasonable pricing
Clients have expressed high satisfaction with DataRoot's reasonable pricing, particularly highlighting a significant reduction in costs. One client noted that DataRoot's per keyword cost was ten times less than their previous provider, resulting in only 10% of the prior expenses. The impressive cost-to-quality ratio stands out, as the client mentioned that comparable services would typically exceed $100,000. Overall, the sentiment regarding pricing is overwhelmingly positive, with clients appreciating both affordability and quality.

AI Dev for Cloud-Based Coaching Solutions Company

5.0 Nov 1, 2023

DataRoot Labs exceeded our expectations primarily because they managed to deliver the working prototype on time and at less cost than anticipated (!). We liked that transparency and look forward to the next development phase. We trust them with their expertise and highly recommend them for early stage founders looking for an exceptional AI partner.
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Custom Software Development for Startup Company

5.0 Oct 30, 2023

Although the project took a bit longer than expected, the team has delivered it on budget and quite quickly. I was able to connect with the CTO and their engineering team in a matter of minutes. We still stay in touch and I hope to work with them again on a new scope.
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AI Services for Social Audio Marketplace

5.0 May 28, 2023

The team has been our development partner for over 2 years. They have proven to be a reliable ally that not only demonstrates on-point AI expertise but also delivers on time and on budget. They are easy to work and communicate with. I would highly recommend them to any founder of any AI startup looking for a reliable tech partner.
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Average Project Cost Breakdown

$50,000 to $199,999 (7) $10,000 to $49,000 (5) $200,000 to $999,999 (4) Less than $10,000 (1) $1,000,000 to $9,999,999 (1)

What Clients Have Said
Clients consistently commend DataRoot Labs for their excellent value for money, with many highlighting that their pricing fits within budget while delivering high-quality results. One client noted, 'DataRoot Labs exceeded our expectations primarily because they managed to deliver the working prototype on time and at less cost than anticipated.' Another remarked, 'Good value for cost' and 'impressive cost and quality ratio,' reflecting a strong sentiment of satisfaction with the overall investment.
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View projects from:

United States (7) Ukraine (6) England (3) Israel (1) Nigeria (1) Spain (1) United Arab Emirates (1)

Kyiv, Ukraine

21 Polova Street
Kyiv, Ukraine 02000
31 - 40

+380938855724

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The Chalifour Consulting Group, LLC

5.0 6 reviews
Premier Verified

$1,000+

$200 - $300 / hr

2 - 9

Serves Maine

Services provided

80% Business Consulting

10% Corporate Training & Coaching

10% Fractional CFO Services

The Chalifour Consulting Group, LLC specializes in providing Business Consulting and Management Consulting services, offering tailored business solutions and advisement. Their reviews highlight a 100% satisfaction rate, with clients praising their professionalism, strategic insights, and timely deliverables. Approximately 80% of reviewers commend their customized approach and effective communication, positioning them as a trusted partner for corporate consultation and business growth.

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5 of 5 Business Consulting reviews are 5 stars

2 new reviews for Business Consulting in past 6 months

Less than $10,000 avg. project cost

Business Consulting PROJECT HIGHLIGHT

Business Consulting for Healthcare Services Company
5.0 — The Chalifour Consulting Group, LLC provided business consulting for a healthcare services company. The team assisted the client in completing the necessary paperwork to start their business. Read more
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Industry Experience

The Chalifour Consulting Group, LLC demonstrates expertise across multiple industries including Healthcare, Manufacturing, Construction, Logistics & Supply Chain, and Automotive. Clients commend their tailored approach, effective communication, and commitment to delivering results. In Healthcare, they facilitate business setups efficiently. For Manufacturing, they enhance operational efficiency and client engagement. In Construction, they significantly boost revenue and branding. Logistics clients appreciate their strategic guidance in marketing and sales. Overall, the firm is well-regarded for its professionalism and impactful consulting across these sectors.
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Healthcare Manufacturing Construction Logistics & Supply Chain Automotive

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Average Project Cost Breakdown

What Clients Have Said
Clients consistently commend The Chalifour Consulting Group, LLC for their competitive pricing and overall value for money. Feedback highlights that their costs fit within clients' budgets while delivering high-quality, tailored consulting services. For instance, one client noted that Chalifour Consulting provided 'great value for cost,' while another emphasized the company's ability to achieve significant outcomes, such as doubling revenue, all while maintaining affordability. Overall, the sentiment reflects a strong appreciation for the balance of cost and quality.
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Fort Lauderdale, Florida (1) Columbia, Missouri (1) Minneapolis, Minnesota (1) Chatham, New Jersey (1) Loudon, New Hampshire (1)

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Working Excellence

5.0 3 reviews
Verified

$25,000+

$150 - $199 / hr

10 - 49

Serves Maine

Services provided

10% Business Consulting

15% AI Consulting

15% AI Development +6 services

15% BI & Big Data Consulting & SI

15% Custom Software Development

10% Cybersecurity

10% Generative AI

5% Digital Strategy

5% IoT Development

Working Excellence, a business consulting firm specializing in deploying machine learning models for enterprise analytics, is highly regarded for its expertise and efficient project delivery. With 100% positive feedback, clients commend their end-to-end solutions, responsiveness, and ability to enhance forecasting accuracy by 30%, consistently delivering ahead of schedule and within budget.

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Industry Experience

Working Excellence has demonstrated expertise in the software and advertising & marketing industries, focusing on machine learning and large language model implementations. Clients in software reported improved customer satisfaction and operational efficiencies, while those in marketing noted a 30% increase in forecasting accuracy. Overall sentiment is highly positive, highlighting strengths in communication, project management, and delivering end-to-end solutions, making them a suitable choice for businesses seeking innovation in analytics and automation.
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Software Advertising & marketing

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Average Project Cost Breakdown

Less than $10,000 (1)

What Clients Have Said
Clients have expressed strong satisfaction with Working Excellence's cost-effectiveness, noting it as a significant factor in their selection. One client highlighted their project as 'good value for cost,' while another remarked on receiving 'great early returns' from their investment. Both reviews emphasized timely delivery and responsiveness, reinforcing the perception that Working Excellence offers substantial value relative to their pricing.
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Reston, VA

11921 Freedom Drive
Reston, VA 20190
10 - 15

2025871200

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Pelletier, Chase & Associates

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Portland, ME

Services provided

10% Business Consulting

80% Accounting

10% Financial Consulting

Accounting company Pelletier, Chase & Associates is in Portland, Maine. The team specializes in Accounting and Business Consulting.
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Portland, ME

482 Congress Street Suite 400
Portland, ME 04101
2 - 5

+1.207.771.8800

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Dufour Tax Group, LLC

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Portland, ME

Services provided

10% Business Consulting

80% Accounting

10% Financial Consulting

Located in Portland, Maine, Dufour Tax Group, LLC is a small Accounting company. The team specializes in Accounting and Business Consulting.
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Portland, ME

215 Commercial Street
Portland, ME 04101
2 - 5

+1.207.805.0000

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Office of Cornelia C Viek, CPA

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Brunswick, ME

Services provided

10% Business Consulting

90% Accounting

Office of Cornelia C Viek, CPA, an Accounting company, is in Brunswick, Maine. They focus on Accounting and Business Consulting.
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Brunswick, ME

5 Bank St
Brunswick, ME 04011
2 - 5

+1.207.725.8982

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Simensky, Engstrom & Associates, CPAs

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Saco, ME

Services provided

10% Business Consulting

90% Accounting

Simensky, Engstrom & Associates, CPAs is an Accounting company. They are in Saco, Maine and have small team. Their services include Accounting and Business Consulting.
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Saco, ME

268 Main Street PO Box 760
Saco, ME 04072
6 - 9

+1207.284.5943

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Slate Consulting

Not yet reviewed

Undisclosed

Undisclosed

Freelancer

Portland, ME

Services provided

40% Business Consulting

40% Accounting

20% Financial Consulting

Slate Consulting is a Business Consulting company. They are based in Portland, Maine and have small team of experts. Their services include Business Consulting and Accounting.
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Portland, ME

609 Forest Ave, Suite 201
Portland, ME 04101
1

207-653-8541

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Calon At Work

Not yet reviewed

Undisclosed

Undisclosed

Freelancer

Portland, ME

Services provided

40% Business Consulting

40% Corporate Training & Coaching

20% Market Research

Business Consulting company Calon At Work was founded in 2021. The team specializes in Business Consulting and Corporate Training & Coaching.
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Portland, ME

63 Federal Street
Portland, ME 04101
1

207-200-3212

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CORSA, LLC

Not yet reviewed

Undisclosed

Undisclosed

Freelancer

South Portland, ME

Services provided

40% Business Consulting

20% Commercial Financing

20% Manufacturing Consulting +1 service

20% Marketing Strategy

Business Consulting company CORSA, LLC is headquartered in South Portland, Maine. Their services include Business Consulting and Marketing Strategy.
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South Portland, ME

65 Sawyer St.
South Portland, ME 04106
1

207-387-0707

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DigiDive

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Portland, ME

Services provided

35% Business Consulting

35% IT Strategy Consulting

30% Call Center Services

DigiDive is an IT strategy consulting company. The team is based in Pittsburgh, Pennsylvania and Skopje, North Macedonia, and their services include IT strategy consulting and Business Consulting.
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Skopje, North Macedonia

Naum Naumovski Borce 40
Skopje, North Macedonia 1000
6 - 9

+389 70 200 738

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Bonneville Consulting

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Belfast, ME

Services provided

20% Business Consulting

20% Advertising

20% Branding +3 services

20% Marketing Strategy

10% Video Production

10% Web Design

Bonneville Consulting, an Advertising company, is in Belfast, Maine. They provide Advertising and Branding and were established in 2003.
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Belfast, ME

31 Lower Congress St
Belfast, ME 04915

+1.207.433.0212

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Sound Moves Marketing

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Kennebunk, ME

Services provided

20% Business Consulting

20% Email Marketing

20% Search Engine Optimization +2 services

20% Social Media Marketing

20% Web Design

Sound Moves Marketing is a social media marketing agency. They are based in Kennebunk, Maine, and their services include Social Media Marketing and Email Marketing.
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Kennebunk, ME

5 Remington Way
Kennebunk, ME 04043
1

+1.978.239.9715

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The Swanson Group LLC

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Westbrook, ME

Services provided

15% Business Consulting

75% Accounting

10% Financial Consulting

Headquartered in Westbrook, Maine, The Swanson Group LLC is a small Accounting company. Their services include Accounting and Business Consulting.
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Westbrook, ME

838 Main Street
Westbrook, ME 04092

1.207.370.3490

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BCE Consulting

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Yarmouth, ME

Services provided

40% Business Consulting

60% Commercial Financing

Located in Boston, Massachusetts and Yarmouth, Maine, BCE Consulting is a Commercial Financing company. They offer Commercial Financing and Business Consulting.
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London, England

30 Crown Place
London, England EC2A 4EB
2 - 5

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Davidson Associates

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Portland, ME

Services provided

10% Business Consulting

80% Accounting

10% Financial Consulting

Davidson Associates is an Accounting company. Their small team is located in Portland, Maine. Their services include Accounting and Business Consulting.
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Portland, ME

2 Portland Fish Pier # 302
Portland, ME 04101

+1.207.773.7122

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Ability to deliver

Focus

Proven

Market Leaders

Emerging

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Clutch Leaders Matrix

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1 Berry Dunn

2 Chasse & Company

A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size.

By using verified reviews, focused service details, and real project data, the Leaders Matrix highlights companies that consistently deliver and stand out from the rest. Each company’s position is based on how well they focus on a service area and how consistently they deliver results, helping you make informed, confident decisions. Learn More

Focus (x-axis)

Focus accounts for a company’s specialization within a certain service.

Ability to Deliver (y-axis)

Ability to Deliver considers three criteria:

Client feedback and reviews
Work experience and previous projects
Market presence and reputation in the industry

List of the Top 2 Maine Consultants

Berry Dunn

Undisclosed

Undisclosed

250 - 999

Portland, ME

Ability to deliver

23.8/40.0

16.2/20 Reviews

0.7/10 Clients & Experience

6.8/10 Market Presence

Service focus

10% Business Consulting

90% Other

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Chasse & Company

Undisclosed

Undisclosed

10 - 49

Auburn, ME

Ability to deliver

23/40.0

16.2/20 Reviews

1.5/10 Clients & Experience

5.3/10 Market Presence

Service focus

20% Business Consulting

80% Other

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Nucleus One

Undisclosed

Undisclosed

10 - 49

Portland, ME

Ability to deliver

4.9/40.0

0/20 Reviews

0/10 Clients & Experience

4.9/10 Market Presence

Service focus

100% Business Consulting

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MaineTech Consulting

$5,000+

$150 - $199 / hr

2 - 9

Winthrop, ME

Ability to deliver

8.8/40.0

0/20 Reviews

4.8/10 Clients & Experience

4/10 Market Presence

Service focus

10% Business Consulting

90% Other

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Starboard Leadership Consulting

Undisclosed

Undisclosed

2 - 9

Bangor, ME

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

100% Business Consulting

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SCORE Portland Maine

Undisclosed

Undisclosed

50 - 249

Portland, ME

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

100% Business Consulting

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Opus Consulting

$10,000+

Undisclosed

10 - 49

Portland, ME

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

90% Business Consulting

10% Other

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Northcross Group

Undisclosed

Undisclosed

10 - 49

Portland, ME

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

100% Business Consulting

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Management Research Group

Undisclosed

Undisclosed

10 - 49

Portland, ME

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

100% Business Consulting

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VanceGray Wealth Management, Inc.

Undisclosed

Undisclosed

2 - 9

Bangor, ME

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

80% Business Consulting

20% Other

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Baker Newman Noyes

Undisclosed

Undisclosed

250 - 999

Portland, ME

Ability to deliver

5.7/40.0

0/20 Reviews

0/10 Clients & Experience

5.7/10 Market Presence

Service focus

11% Business Consulting

89% Other

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rInnovation Group

Undisclosed

Undisclosed

10 - 49

Wells, ME

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

50% Business Consulting

50% Other

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DGCpartners LLC

$5,000+

$150 - $199 / hr

2 - 9

Dresden, ME

Ability to deliver

4.9/40.0

0/20 Reviews

0/10 Clients & Experience

4.9/10 Market Presence

Service focus

20% Business Consulting

80% Other

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Marketecs

Undisclosed

Undisclosed

2 - 9

Brunswick, ME

Ability to deliver

4.9/40.0

0/20 Reviews

0/10 Clients & Experience

4.9/10 Market Presence

Service focus

10% Business Consulting

90% Other

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Lean East

Undisclosed

Undisclosed

2 - 9

Brunswick, ME

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

40% Business Consulting

60% Other

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Ouellette & Associates, P.A.

Undisclosed

Undisclosed

10 - 49

Lewiston, ME

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

30% Business Consulting

70% Other

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Downeast Accounting Services

Undisclosed

Undisclosed

2 - 9

Wells, ME

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

30% Business Consulting

70% Other

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