Not all M&A advisors are the same. The differences matter more than you think.

We've analyzed the leading sell-side M&A advisory firms in the lower middle market. Here's what we found — and why the model your advisor uses determines your outcome before the process even starts.

The attributes that actually determine your outcome.

Generational Group

$1M – $50M+

One of the largest M&A advisory firms in North America, focused on privately-held businesses across all industries. Known for their M&A Master Class educational events and high transaction volume.

B2B Tech Exclusive Focus
Retainer-Funded Preparation
6–18 Month Prep-First Approach
Earnout Reduction Focus
Lead Advisor Sold Own Company
CEPA Certified

Cornerstone Business Services

$5M – $250M

A 25-year-old investment bank serving the lower middle market ($5M–$250M revenue). FINRA/SIPC registered, with a proprietary Assurance 360™ process and membership in the Cornerstone International Alliance.

B2B Tech Exclusive Focus
Retainer-Funded Preparation
6–18 Month Prep-First Approach
Earnout Reduction Focus
Lead Advisor Sold Own Company
CEPA Certified

FNDRS

Not specified

A founder-focused growth and exit ecosystem offering community, events, and advisory services. Known for their NXT90 program claiming to prepare businesses for sale in 90 days.

B2B Tech Exclusive Focus
Retainer-Funded Preparation
6–18 Month Prep-First Approach
Earnout Reduction Focus
Lead Advisor Sold Own Company
CEPA Certified

IT ExchangeNet

$5M+

Axial's #1 Sell-Side Technology M&A Advisor for 2025. Focuses exclusively on MSPs, MSSPs, VARs, and digital marketing agencies with a database of 90,000+ IT decision-makers.

B2B Tech Exclusive Focus
Retainer-Funded Preparation
6–18 Month Prep-First Approach
Earnout Reduction Focus
Lead Advisor Sold Own Company
CEPA Certified

Aventis Advisors

$10M – $200M

A technology-focused M&A advisory firm serving tech and tech-enabled business services companies globally. Known for publishing detailed SaaS and software valuation multiples research.

B2B Tech Exclusive Focus
Retainer-Funded Preparation
6–18 Month Prep-First Approach
Earnout Reduction Focus
Lead Advisor Sold Own Company
CEPA Certified

Vestara Advisors

$2M – $50M revenue

Exclusively B2B tech and services. Retainer-funded preparation model. 100% close rate. 55% fewer earnouts. Led by a founder who sold his own company to KPMG at 12× EBITDA.

B2B Tech Exclusive Focus
Retainer-Funded Preparation
6–18 Month Prep-First Approach
Earnout Reduction Focus
Lead Advisor Sold Own Company
CEPA Certified

Know who else is in the room.

Generational Group

Deal size: $1M – $50M+

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One of the largest M&A advisory firms in North America, focused on privately-held businesses across all industries. Known for their M&A Master Class educational events and high transaction volume.

Strengths

  • Large firm with 1,800+ completed transactions
  • Strong brand recognition
  • Free M&A Master Class events
  • Ranked #1 for sub-$25M deals by M&A Advisor Awards

Limitations

  • Generalist — not tech-specific
  • Large firm means less personalized attention
  • Success-fee model incentivizes speed over preparation
  • No retainer-funded preparation phase

Cornerstone Business Services

Deal size: $5M – $250M

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A 25-year-old investment bank serving the lower middle market ($5M–$250M revenue). FINRA/SIPC registered, with a proprietary Assurance 360™ process and membership in the Cornerstone International Alliance.

Strengths

  • FINRA/SIPC registered investment bank
  • 25 years of experience
  • Assurance 360™ proprietary process
  • Both buy-side and sell-side capabilities

Limitations

  • Not tech-specific
  • Buy AND sell (not exclusively sell-side)
  • No retainer-funded preparation phase
  • No specific earnout reduction focus

FNDRS

Deal size: Not specified

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A founder-focused growth and exit ecosystem offering community, events, and advisory services. Known for their NXT90 program claiming to prepare businesses for sale in 90 days.

Strengths

  • Strong founder community and network
  • Events and education focus
  • NXT90 90-day prep program
  • Modern, founder-friendly brand

Limitations

  • Not tech-specific
  • 90-day prep is insufficient for complex exits
  • Community/lifestyle brand vs. serious M&A advisory
  • No specific track record or close rate data

IT ExchangeNet

Deal size: $5M+

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Axial's #1 Sell-Side Technology M&A Advisor for 2025. Focuses exclusively on MSPs, MSSPs, VARs, and digital marketing agencies with a database of 90,000+ IT decision-makers.

Strengths

  • Axial #1 ranked tech M&A advisor
  • 90,000+ buyer database
  • 25 years in IT M&A
  • Deep MSP/MSSP channel expertise

Limitations

  • Narrow focus (MSPs/VARs only — not B2B SaaS)
  • Marketplace model vs. deep advisory
  • No retainer-funded preparation phase
  • No earnout reduction focus

Aventis Advisors

Deal size: $10M – $200M

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A technology-focused M&A advisory firm serving tech and tech-enabled business services companies globally. Known for publishing detailed SaaS and software valuation multiples research.

Strengths

  • Strong tech sector focus
  • Excellent content marketing (SaaS multiples research)
  • International reach
  • Both sell-side and buy-side

Limitations

  • International/larger deal focus
  • No retainer-funded preparation phase
  • No earnout reduction focus
  • No CEPA certification

The question isn't which advisor is "best." It's which model is right for your situation.

If you're ready to sell today and you want to move fast, a success-fee-only advisor who will take you to market immediately might be the right choice. You'll likely leave value on the table, and you may face an earnout — but you'll close faster.

If you want to maximize the value of the most important financial transaction of your life, and you're willing to invest 6–18 months in preparation, Vestara is built for you.

We're not the right advisor for every founder. We are the right advisor for founders who understand that preparation is the investment — and who want an advisor who has lived the process from the other side.