9 Top M&A Advisory Boutique Firms in the US

Hi, I’m Chris Walton, author of this guide and CEO of Eton Venture Services.

I’ve spent much of my career working as a corporate transactional lawyer at Gunderson Dettmer, becoming an expert in tax law & venture financing. Since starting Eton, I’ve completed thousands of business valuations for companies of all sizes.

A short bio of Chris Walton, CEO of Eton

Read my full bio here.

From my 15 years of leading a buy & sell-side M&A advisory firm, I’ve seen that each transaction is unique, and requires a collaborative and nuanced approach.

For that reason, many companies are switching from Big Four advisory firms to boutiques who can give them the attention and care they need to navigate deals confidently. 

But choosing the right firm can be overwhelming if you’re not sure what to look for. 

So, I put together this article, where I’ll go into four factors you should look for in a partner, and recommend nine boutique M&A advisory firms throughout the US. 

Each firm has a unique focus area, so you can choose the right one for your unique M&A needs.

4 Things to Look For in an M&A Advisory Boutique Firm

Here are the four factors I’d consider when hiring an M&A advisory boutique firm:

  • Experience and Expertise
  • Specialization
  • Reputation & Credibility
  • Customer Service & Support

Let’s look at each one in turn.

Factor 1: Experience & Expertise

Experience and expertise in M&A are critical as they make sure the advisory firm can handle tricky negotiations and complex regulations well. 

Seasoned advisors bring a wealth of knowledge. They can help prevent costly errors and spot opportunities that less experienced firms might miss.

Questions to ask to check for experience and expertise:

  • How long has the firm been handling M&A transactions?
  • How many M&A transactions have you handled?
  • What kind of deals have they completed? Ask for examples.
  • Can you share success stories or challenges you’ve overcome in past deals?
  • How do you stay updated with regulations and market changes?

A firm that specializes in your specific industry can provide tailored advice that is more applicable and impactful. 

They have a deeper understanding of the particular market dynamics and key players, leading to more strategic advice and better deal outcomes.

Check their website or ask them about:

Sectors and industries they specialize in
Names of past clients in your particular sector

The reputation and trustworthiness of a firm tell you a lot about how reliable and good they are at their job.

A well-known firm often gets better deals and makes everyone involved feel more confident.

Check references or testimonials from past clients to gauge for reputation and credibility.

Customer service and support are important both during and after an M&A deal. 

You should receive prompt, clear answers to your concerns and questions, and receive guidance throughout the entire process.

This ongoing support is important for smooth post-merger integration and for addressing any issues that might arise afterwards.

For example, at Eton, we are prepared to defend M&A valuations in court later if necessary.

1. Eton Venture Services – Best M&A Advisory Firm for Private Equity Firms

Revenue Range: $5M – $150M

Years of Experience: 15

Specialty: Private equity firms, investors, high-net-worth individuals 

Based in: Austin, TX (but we work with clients from all over the United States)

Eton Venture Services is the trusted boutique M&A advisor for private equity firms, investors, and high-net-worth individuals who need strategic guidance without the usual big-firm bureaucracy.

Large advisory firms often deliver slow responses, assign junior staff to handle client work, and burden deals with layers of process that create bottlenecks. Eton eliminates those frustrations with direct senior-level access, responsive service, and efficient processes honed across thousands of successful transactions.

Led by former Big 4 consultants and Stanford Law alumni, you can be assured that you’re getting expert guidance at every step, helping you close the best deal possible.

Three reasons why people choose Eton Venture Services:

1. Eton gives you direct access to senior M&A experts throughout the deal

Large M&A advisory firms often assign junior staff to handle day-to-day client work, with senior partners appearing only for key meetings. Eton is different.

Our boutique structure means you work directly with senior advisors from day one, not junior analysts or layers of account managers. This gives you access to professionals with deep M&A expertise and a proven track record in high-stakes transactions.

Direct senior access means you get:

  • Clear answers when you have urgent questions
  • Faster momentum when timing is critical
  • Personalized guidance tailored to your specific situation

Even after the deal closes, our senior team stays available to support valuation defense, integration challenges, and any issues that arise, ensuring continuity when you need it most.

2. Eton combines M&A advisory and valuation expertise under one roof

Many M&A advisory firms offer deal support but outsource valuation work. Eton does both in-house.

With over 10,000 valuations completed internally, our team brings firsthand knowledge of how valuation reports are actually built, not just how to interpret them. This dual expertise means we can deliver:

  • Sharper insights into what truly drives value in your business
  • Clear understanding of how risks translate into pricing decisions
  • Strategic guidance on where negotiation leverage exists

Whether you’re preparing for a sale or evaluating an acquisition, you get advice grounded in valuation fluency, so you can negotiate from a position of strength and avoid costly surprises.

3. Eton’s M&A advisory is grounded in industry-specific expertise

Different sectors require specialized knowledge of buyer behavior, value drivers, and competitive activity to maximize deal success.

With experience across technology, healthcare, consumer products, financial services, and more, we understand the specific dynamics that shape deals in your space. This means we can:

  • Anticipate the buyer concerns and objections specific to your industry
  • Structure deals around the valuation drivers that actually matter in your sector
  • Understand the competitive landscape and recent transaction activity in your space

This specialized expertise gives you the industry credibility required to secure the best possible deal.

Here’s what clients say about working with Eton:

Eton - M&A advisory firm
Eton testimonial

You can read more testimonials from our clients here.

Click here to get a free consultation with Eton Venture Services.

2. Fultonbridge – Best Boutique M&A Firm for the Consumer, Industrial & Technology sector

Revenue Range: $10M – $200M

Years of Experience: 24

Specialty: Lower middle market companies in consumer, industrial, and technology sectors

Based in: Chicago, IL

If you’re looking for an expert in the consumer, industrial, or technology sector, Fultonbridge is a good choice. They can help you with:

  • Buy-side mergers & acquisition advisory
  • Sell-side mergers & acquisition advisory
  • Capital raising transactions

Founded in 2000 and headquartered in Chicago, the firm has worked globally on total transactions of over $10 billion, with over half of its assignments completed for repeat clients.

Unlike Big-4 firms, the advisors at Fultonbridge stress on not using cookie-cutter approaches, but carefully understanding your goals to provide tailored services. 

3. Three Sixty Seven Advisors – Best Boutique M&A Advisory Firm for the Healthcare Sector

Revenue Range: $10M – $1BN

Years of Experience: 5

Specialty: M&A and Corporate Debt Advisory for Healthcare companies

Based in: Tampa, FL

Three Sixty Seven Advisors is a boutique M&A advisory firm based in Tampa, Florida. 

Although it helps middle-market companies across all sectors with M&A and corporate debt advisory, it excels in healthcare transactions.

Recently, the team served as the exclusive advisor to BioSpine Institute in its successful transaction with Praesentia Healthcare, a leading healthcare services organization. 

367 Advisors has also helped other healthcare providers navigate M&A deals, like:

  • KNR Therapy
  • Autism Learning Center (ALC)
  • Dermatology Medical Partners

Experienced M&A professionals at Three Sixty Seven Advisors bring a broad range of perspectives and data points to spot and solve problems that could disrupt a deal before they happen.

They have an exceptional close rate, according to their Managing Principal Graham Woodard, which is a testament to their hard work and expertise.

📚 You might also like: 7 Top Healthcare Valuation Firms in 2024

4.M+A Squared – Best Boutique M&A Advisory for Technology, Media, Communications, and Life Sciences 

Revenue Range: Not publicly available

Years of Experience: 11

Specialty: Technology, media, communications, and life sciences sectors

Based in: New York

M+A Squared is a boutique advisory firm specializing in cross-border M&As for technology, media, communications, and life sciences sectors. 

Some of its cross-border M&A work includes:

Client

Transaction

Industry

Ripe (New York)

Acquisition by Hungry Marketplace (Washington DC)

Food Tech

Archer (Ukraine)

Acquisition by Cprime (US)

Software

CAC (Japan)

Acquisition of Mitrais (Indonesia)

IT Services

M+A Squared advise on both sell-side and buy-side. 

For sell-side advisory, their experts take care of the entire process so their clients can focus on day-to-day operations: 

  • Heavy lifting of deal marketing
  • Identifying and initiating discussions with potential acquirers
  • Facilitating communication with the C-suite
  • Managing due diligence
  • Advising on strategic options
  • Assisting in negotiating and closing transactions

For buy-side advisory, they use their global network of relationships to:

  • Conduct targeted searches
  • Identify acquisition opportunities
  • Offer advice on the value and advantages of potential acquisition targets
  • Negotiate deal structure and terms on behalf of their clients

If financing is required, they use their connections with money lenders to find affordable financing options.

5. Blackcastle Partners – Best M&A Advisory Firm for Architecture, Engineering, and Construction Sectors

Revenue Range: $2M – $100M

Years of Experience: 13

Specialty: Architecture, Engineering, and Construction sectors

Based in: US and Canada – based in Las Vegas, NV

Blackcastle Partners is a well-known M&A advisory company in the AEC—Architecture, Engineering, and Construction sector. They are trusted by both U.S. and Canadian firms in this field. 

 Blackcastle Partners offers the following services:

  • Mergers & acquisitions
  • Corporate development
  • Exit planning
  • Strategic planning
  • Professional development services

The team has extensive experience in AEC. Within it, they have worked with the following sub-sectors:

  • Architecture & Interior Design
  • Construction/Program Management (CM/PM)
  • Environmental Services
  • Fire and safety
  • Geomatics, and more

While this is their main niche, they have also had clients in the following industries: 

  • Business services
  • Distribution
  • Healthcare
  • HR Services
  • Investment / Asset Recovery

6. Carter Morse & Goodrich – Best Boutique M&A Firm for Founder-Led & Family-Held Businesses

Revenue Range: $25M – $250M

Years of Experience: 35+

Specialty: Founder-led and family-held businesses

Based in: Southport, CT

Carter Morse & Goodrich specializes in representing founder-led and family-held businesses valued between $25 million and $250 million. 

The firm’s goal is to achieve maximum value in a transaction, and they use their 35 years of investment banking experience to consistently achieve this goal.  

Their team of senior bankers with an average of 25 years of experience has completed 450+ client engagements with a total transaction value of $5Bn+.

They have a comprehensive service strategy that combines the following:

  • Hands-on service
  • Senior banker attention
  • Strategic guidance
  • Smooth transaction execution
  • Extensive network of resources in the U.S. and internationally

CMG’s services include:

  • Business sales and divestitures
  • Equity and debt capital raises
  • Acquisition services
  • Pre-transaction advisory services

The team also believes in giving back. They actively participate in local education programs, youth sports programs, and hospitals and clinics.

7. MDR & Associates – Best M&A Consulting Firm for Manufacturing, Distribution, Service & Construction Industries

Revenue Range: $1M – $100M 

Years of Experience: 17

Specialty: Manufacturing, Distribution, Service and Construction industries

Based in: Dallas, Fort Worth, Frisco, Austin & Houston

MDR & Associates is a comprehensive business valuation and M&A advisory firm. It helps sell Companies in the manufacturing, distribution, service and construction industries for maximum value.

They offer the following services:

  1. Business valuations for divorce, sudden death of the business owner or a partner buy-out.
  2. Business sales/mergers & acquisitions
    1. Selling a business: The firm has a 10-step unique process that maximizes value in the shortest time. You can watch the explanation of the process here: 

2. Buying: The firm uses its network of hundreds of companies considering or planning to sell soon to find you a buyer.

3. Business financing: The advisors are well versed in all types of capital requirements and have a solution for most financing needs, such as:

  • Mezzanine financing
  • Equity financing
  • Bridge money
  • Factoring account receivables

They have completed over 200 transactions in the last 17 years.

8. Kratos Capital – Best Boutique M&A Firm for Middle-Market Sales, Divestitures, and Acquisitions

Revenue Range: $25M –  $300M

Years of Experience: 18

Specialty: Sales, divestitures, mergers, and expansion through acquisition of middle-market businesses

Based in: Dallas, TX

Kratos Capital is an independent M&A advisory firm that specializes in the following for a broad range of sectors:

  • Sales
  • Divestitures
  • Mergers
  • Expansion Through Acquisition

It is a client-centric firm, with a focus on quality over quantity.

It boasts a high-touch approach of a boutique agency along with the resources of a large firm.

Kratos Capital has completed over 200 transactions, with a total of over $1 billion dollars in completed transactions in the private middle market.

Routinely, the methods the firm uses result in attractive initial offers, and clients closing a deal at or above their initial valuation range.

9. Sun Mergers & Acquisitions – Best M&A Advisory Firm for Owner-Led, Closely Held Companies

Revenue Range: $3M – $75M

Years of Experience: 25+

Specialty: Sell-side advisory for founder-led, privately held mid-market businesses

Based in: New Jersey

Sun Mergers & Acquisitions is a boutique M&A advisory firm focused on the sale of entrepreneurial, privately held companies. Their team works exclusively on the sell-side and provides full-service support from strategy to closing.

They help clients with:

  • Business valuation and financial recasting
  • Identifying and vetting strategic and financial buyers
  • Structuring and negotiating deals
  • Managing due diligence and closing
  • Protecting confidentiality at every stage

What makes Sun M&A stand out is their ability to attract multiple qualified acquirers, creating more options, stronger leverage, and better outcomes for sellers. 

For entrepreneurs going through the sale process for the first time, Sun provides hands-on guidance and a proven process from start to finish.

A Comparison of M&A Advisory Boutique Firms

Here’s the comparison chart of the different boutique advisory firms listed above.
# Firm Revenue Range Years of Experience Specialty Based In
1 Eton Venture Services $5M – $150M 20 Private equity, investors, high-net-worth individuals Austin, TX (but we work with clients from all over the United States)
2 Fultonbridge Not publicly available 24 M&A advisory and capital raising for the middle market Chicago, IL
3 Three Sixty Seven Advisors $10M – $1BN 5 M&A and Corporate Debt Advisory for Middle-Market Companies Tampa, FL
4 M+A squared Not publicly available 11 Cross-border M&A at the intersection of technology, media, communications, and life sciences NY
5 Blackcastle Partners $2M – $100M Not available M&A advisory for the AEC sector Las Vegas, NV
6 Carter Morse & Goodrich $25M – $250M 35+ Founder-led and family-held businesses Southport, CT
7 MDR & Associates $1M – $100M 17 Manufacturing, distribution, service, and construction sectors Dallas, TX
8 Kratos Capital $25M – $300M 18 Sales, divestitures, mergers, expansion through acquisition Dallas, TX
9 Sun Mergers & Acquisitions $3M – $75M 25+ Sell-side advisory for founder-led, privately held mid-market businesses New Jersey

M&A Advisory Boutique Firms – FAQs

Have more questions about boutique M&A advisory firms? I answer them below:

What does an M&A Boutique firm do?

An M&A boutique firm is a specialized advisor focused on mergers and acquisitions. 

Unlike larger investment banks, these firms are smaller and provide personalized services. 

They guide clients through the entire merger or acquisition process, which includes identifying potential partners, valuing businesses, negotiating terms, and facilitating the deal’s closure.

M&A boutique firms often have deep knowledge in specific industries (e.g. healthcare, technology, or engineering), which can be especially helpful for complex transactions.

Here are five key reasons why you should choose a boutique M&A firm:

#1 Personalized Service:

You receive personalized attention due to smaller client rosters, ensuring high-level involvement and availability from senior advisors throughout your transaction.

#2 Specialized Expertise:

You benefit from deep industry insights and specialized knowledge, as many boutique firms focus on specific sectors or transaction types, which is crucial for complex deals.

#3 Flexibility and Agility:

With less bureaucracy than larger firms, boutique firms adapt quickly to your changing needs, offering innovative solutions and faster deal execution.

#4 Senior-Level Attention:

You enjoy direct engagement with senior-level experts (like me) who bring extensive experience to every aspect of your deal, helping you navigate M&A complexities effectively.

#5 Cost-Effectiveness:

Boutique firms typically have lower overheads, allowing them to offer more competitive pricing. This makes them a cost-effective choice for high-quality advisory services.

At Eton Venture Services, we’ve helped hundreds of private equity firms, high net worth individuals, and investors navigate M&A deals with confidence. 

We understand that every M&A transaction is unique, which is why we provide personalized attention to each of our clients. 

You’ll have direct access to me, the CEO, and a senior M&A advisory expert dedicated to your project, ensuring that you receive the expert guidance you need at every step.

Our Big-4 trained experts can also help you with whatever valuations you need along the way, whether it’s M&A valuations, 409A valuations, or portfolio valuations. We defend our valuations in court too, if needed. 

Our commitment to excellence is reflected in our strong track record and positive feedback from esteemed clients like Dutchie, Cedar, and Pinterest.

You can read all the testimonials here.

Get in touch with me today!

get in touch

Let's talk.

Schedule a free consultation meeting to discuss your valuation needs. 

President & CEO

Chris Walton, JD, is is President and CEO and co-founded Eton Venture Services in 2010 to provide mission-critical valuations to private companies. He leads a team that collaborates closely with each client’s leadership, board of directors, internal / external counsel, and independent auditors to develop detailed financial models and create accurate, audit-ready valuations.

Table of Contents

Related Posts

Schedule a Meeting