Comparing M&A Advisors
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.
Retainer-Backed GuaranteeSide-by-Side Comparison
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.
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.
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.
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.
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.
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.
Competitor Profiles
Know who else is in the room.
Generational Group
Deal size: $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.
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
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
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+
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
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
We Put Our Fee On the Line. Literally.
Before we start, we give you a documented valuation range built from real transaction data and your actual financials. That range is our stake in the ground — not a number designed to get you excited, not a vague estimate. It is the number we are willing to be held accountable to.
"If we cannot produce a written LOI from a verified buyer at or above the floor of our documented valuation range within 12 months of going to market, we refund your full preparation retainer. No conditions. No fine print."
— Pete Martin, Founder, Vestara Advisors
The range is ours, not yours
We derive the valuation range from market data and your financials — not from what you tell us you want. That removes any incentive to inflate it to win your business.
12 months from go-to-market
The clock starts when we formally begin buyer outreach — not from day one of preparation. A well-run process reaches qualified buyers within that window. If it doesn't, you get your retainer back.
A qualified offer is a written LOI
Not a verbal indication. Not a term sheet. A written Letter of Intent from a buyer we have verified as financially capable of closing, at or above the floor of the range.
Why we can offer this: We only take clients whose businesses we believe are genuinely sellable at the range we document. We turn down engagements. We do not promise outcomes we cannot deliver. This guarantee is not a marketing gimmick — it is the logical result of doing honest work before we ever ask for your business.
Questions founders ask about the guarantee
The Real Question
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.