Scoped to one job: selling a founder-owned B2B services company in the lower middle market. Business services is the single broadest category in M&A, so the useful question is not who is best overall but who is best in your vertical.
- Salt Creek Advisory Best Fit: both founders run every deal, success-fee weighted
- The Advisory Investment Bank: essential and field services; Axial's #1-ranked firm for Q2 2026
- FOCUS Investment Banking: since 1982, dedicated business and IT services teams, $10M–$150M
- Kaulkin Ginsberg: outsourced business services specialist since 1991
- Cornerstone Business Services: defined multi-offer process, $5M–$250M revenue
- Peakstone Group: deep bench, plus capital raising and restructuring
What Business Services Covers
Business services is a broad category that spans professional services, facility services, business support services, and specialized trades. In our practice we focus on founder-owned service businesses with recurring relationships and real margins. From facility services to professional services, we understand how buyers underwrite them and where the value drivers hide.
What ties them together in a buyer's mind is simpler than it looks: they deliver recurring value to business customers (not consumers), they scale through people and systems rather than inventory, and their valuation depends far more heavily on how much of the business actually survives the founder's departure than it does for a product business.
What Buyers Actually Underwrite
When a buyer evaluates a business services company, they focus on a few things in particular, and an advisor who understands these gets better outcomes for owners who understand them too.
- Customer concentration. How many customers account for a meaningful portion of revenue? Service businesses that are heavily reliant on one or two large contracts are riskier to acquire, and buyers will discount for that risk.
- Contract-based vs. project-based revenue. Recurring, contracted revenue is worth far more than one-time project work. A buyer paying for stability needs to see stable revenue. This is often the single biggest value driver in the space.
- Customer retention and switching costs. Are your customer relationships sticky? Do customers stay because they have to, or because they want to? Service businesses whose customers would find it genuinely painful to switch command higher multiples than those that compete on price alone.
- Management depth beyond the owner. This is where most service business owners leave value on the table. If the business depends on you personally to close deals, deliver work, or manage relationships, the buyer is not buying a business, they are buying a job. Building a team the business can run without you often adds more value than anything else an owner can do before a sale.
- Pricing discipline and margins. Service businesses built on low prices are hard to sell. Buyers look for real margins and evidence that you price for value, not just volume.
Who Is Actively Acquiring in Business Services
Business services has one of the deepest buyer pools in the lower middle market, which works in an owner's favor. A few names dominate:
- Springdale Industries. A permanent capital vehicle reporting “375+ partner companies” and more than 700 individual equity partners, founded by Jake Sloane and Frank Zhang (Springdale). Its pitch to founders is that “business builders should stay at the helm,” so management generally stays rather than being replaced. Worth knowing the vehicle itself began operations in April 2025, though its founders have been acquiring businesses together since 2016.
- Alpine Investors. The most relevant name for many B2B services owners, because Alpine builds platforms that then acquire relentlessly. In 2024 its HVAC, plumbing and electrical platform Apex Service Partners completed 47 acquisitions, its managed-IT platform Evergreen Services Group 32, its accounting platform Ascend 14, and its infrastructure and engineering platform Trilon 11 (Alpine). Apex alone has reached 107 brands and roughly $1.3 billion of revenue.
- Shore Capital Partners. Recognized by PitchBook for leading US private equity deal volume across the ten years from 2015 to 2024, with assets under management above $14 billion after closing $850 million across two new funds (Shore Capital). Its model is built specifically around founder-owned businesses at lower middle market size.
Beyond these names, there are dozens of smaller PE-backed platforms, strategic acquirers in specific verticals, and family offices actively buying in business services. The key is that unlike some industries where buyers are few, business services has real competition. That competition is your leverage.
What Advisors Charge, and What the Market Looks Like
Two numbers are worth knowing before you take a single meeting. The first is how much of the deal market you are competing in. Axial, a lower middle market deal network, reports that B2B services transactions made up almost 20% of all deals brought to its platform, with the majority concentrated in IT services, marketing services, and staffing services (Axial). That is a crowded field, which cuts both ways: plenty of buyers, but your business has to stand out on paper. IT services is the largest slice of it, and it prices differently from the rest of business services, because buyers separate contracted managed-services revenue from project and resale work before applying a multiple. If that is your vertical, see our guide to MSP valuation multiples and our page on selling an MSP.
The second is fees, which you can benchmark before an engagement letter appears. The Firmex M&A Fee Guide, run annually with Axial and Divestopedia, models a sell-side success fee of about 6.3% on a $5 million transaction, 3.9% at $20 million, and 2.0% at $100 million in its 2023–24 US edition of 189 US respondents; its 2024–25 global edition of 456 respondents models 4.8%, 3.4%, and 2.0% at those same sizes. Roughly three-quarters of advisors also charge a work or retainer fee payable whether or not the deal closes, most commonly $5,000 to $10,000 a month, and only 54% credit that money back against the success fee at closing. Ask every firm what the monthly fee is and whether it is credited, and get the answer in writing.
Momentum varies sharply by vertical, which is the strongest practical argument for hiring someone who lives in yours. Staffing M&A, for instance, opened 2026 with 35 transactions in the first quarter, its strongest opening quarter since 2022, with one industry tracker projecting 85 to 100 deals for the full year. A generalist reading headline middle-market data would miss that entirely.
How We Evaluated These Firms
Each advisor below was assessed against four criteria. First, vertical fit: does the firm actually transact in your specific corner of business services, rather than listing it as one of a dozen industries. Second, deal-size fit: is a founder-owned company at your revenue level squarely inside its range instead of at the bottom of it. Third, verifiable evidence: can the track record be confirmed from something other than the firm's own marketing, whether an Axial league-table placement or a published transaction. Fourth, who does the work, and whether the person pitching you runs your process.
Where a claim comes only from a firm's own website, it is cited to that firm and labelled as self-reported. Where a ranking is cited, it is attributed to the body that published it. Axial rankings deserve a specific note: Axial states that its league tables use only first-party platform data and that “no self-reported data or paid placements factor into the results,” and its Q2 2026 table evaluated more than 400 investment banks and advisory firms (Axial). The limit is eligibility: only Axial member firms that marketed a qualifying deal in the period can be ranked, so absence from the table proves nothing. Salt Creek Advisory is not on it. On fees, none of the firms below publishes a fee schedule, so this article reports no fee figures for any of them and instead gives you the published market benchmarks above to hold each one against.
Comparison at a Glance
Six advisors side by side. Ranks are Axial Q2 2026 league-table placements and carry the eligibility limits described above.
| Advisor | Strongest Verticals | Deal Range | Signal | Best For |
|---|---|---|---|---|
| Salt Creek Advisory Best Fit | Business services, ECE, industrials | $2M–$75M revenue | Both founders run every deal, no hand-offs | Founder-owned sellers wanting principal attention |
| The Advisory Investment Bank | HVAC, plumbing, electrical, landscaping, field services | $2M–$100M revenue | Axial #1 (Q2 2026); AI buyer platform, 4,500+ acquirers | Essential and field services owners |
| FOCUS Investment Banking | Business services, IT services, MSPs, professional services | $10M–$150M | Founded 1982; Axial #9 (Q2 2026); 36 countries | Larger deals or cross-border buyer reach |
| Kaulkin Ginsberg | Receivables, revenue-cycle and customer management | Niche-specific | Advising the ARM industry since 1991 | Outsourced business services owners |
| Cornerstone Business Services | Professional services, distribution, logistics | $5M–$250M revenue | Axial #3 (Q2 2026); "Assurance 360" process | Owners wanting a defined multi-offer process |
| Peakstone Group | Generalist, broad LMM coverage | Lower middle market | Axial #7 (Q2 2026); 40+ professionals | Owners needing capital raising alongside a sale |
Salt Creek Advisory Best Fit
Salt Creek Advisory is a family-owned lower middle market investment bank based in Chicago, working with founder-owned businesses in the $2 million to $75 million revenue range, roughly $500,000 to $5 million of EBITDA. Business services is one of three core sectors. Both principals have spent their careers on the buy side: Jack Pitts at the private equity firms Blue Wolf Capital and Kingfish Capital, and Connor Pitts at the middle-market advisory firm Brown Gibbons Lang & Company before three years inside Cadence Education working through more than 40 acquisitions. That matters in this sector specifically, because the platforms named above negotiate deals for a living and run the same playbook every time. Both founders work every engagement personally, and the firm charges no retainer: it is paid a success fee earned at closing and nothing before it.
The honest limits: business services is enormous and we are not specialists in all of it. If you run a receivables-management or revenue-cycle business, Kaulkin Ginsberg has covered that niche since 1991 and we have not. If you are an HVAC or field-services roll-up candidate, The Advisory's buyer database and Axial #1 ranking are real advantages. If your deal needs cross-border reach or a capital raise alongside a partial sale, FOCUS or Peakstone are better equipped. We are also a young firm with a two-person capacity ceiling, so there are periods when we cannot take a new mandate at all, and we do not carry a published league-table rank.
Best for: founder-owned B2B services companies in the $2M–$75M range whose owners want both principals personally running the process against PE platform buyers. For a deep single-niche specialty or cross-border reach, choose accordingly from the firms below.
The Advisory Investment Bank
The Advisory Investment Bank, founded in 2024 and based in La Jolla, California, is the strongest choice on this list for essential and field services. It works exclusively with businesses in HVAC, plumbing, electrical, landscaping, pest control, fire safety, waste management, roofing and more than thirty other trade verticals, generating $2 million to $100 million in revenue with at least five years of operating history (The Advisory). Its most notable asset is technology: a proprietary AI platform for buyer identification maintaining profiles on more than 4,500 private equity firms and strategic acquirers, which is an unusually deep sourcing capability at this deal size.
Its credibility is no longer only self-reported. Axial ranked the firm #1 among all lower middle market investment banks for Q2 2026, out of more than 400 firms evaluated, on a methodology using only first-party platform data with no paid placements (Axial). Because it was founded in 2024, its volume figures cover a short history: it self-reports more than $630 million of 2025 transaction volume across 81 deals, works on a 100% success-fee model with no retainers, and markets a “30 Days to First Offer” promise. Its self-description as “the #1 investment bank in America exclusively for essential services” is its own positioning, distinct from the Axial ranking.
Best for: owners of HVAC, plumbing, electrical, landscaping and similar field-services businesses, especially those attracted by a no-retainer model. Less suited to professional services or knowledge-work businesses outside the trades.
FOCUS Investment Banking
FOCUS Investment Banking has been operating since 1982 and describes itself as “a global leader in the middle-market investment banking sector,” with 46 global partners across 36 countries and a stated track record in the $10 million to $150 million range (FOCUS). It runs dedicated industry teams, and business services and technology services are both among them, covering insurance brokers, legal services, managed service providers and professional services specifically. Axial ranked it #9 for Q2 2026 (Axial), and it also appeared on Axial's business services advisor list.
Two things to weigh. Its stated range starts around $10 million, so a smaller founder-owned company sits at the bottom of the band, and it is worth asking which specific banker would own your process. Against that, the international partner network is a genuine advantage if a foreign strategic acquirer is a plausible buyer, which is more common in IT and professional services than owners expect.
Best for: business services and IT services companies at the larger end of the lower middle market, or any owner who wants meaningful cross-border buyer reach.
Kaulkin Ginsberg
Kaulkin Ginsberg is the narrowest specialist here and, for the right owner, the most obvious call. Based in Germantown, Maryland, it has advised the accounts receivable management industry since 1991 and positions itself as the leading M&A and strategic advisor to the outsourced business services sector, concentrating on receivables management, revenue cycle management and customer relationship management, predominantly in healthcare, government, education and financial services (Kaulkin Ginsberg). Alongside M&A it offers strategic consulting, valuation, market intelligence and expert-witness work.
More than three decades in a single niche means it likely knows every credible buyer in that niche by name, which is difficult for a generalist to replicate. The tradeoff is scale and scope: it is a small firm, and if your business sits outside outsourced business process services its specialization stops being an advantage.
Best for: owners of receivables management, revenue-cycle, collections, or BPO-style outsourced services businesses. Not a fit outside that niche.
Cornerstone Business Services
Cornerstone Business Services, based in Green Bay, Wisconsin and founded in 2001, passed its twenty-fifth anniversary in January 2026 (Cornerstone). It works with companies from $5 million to $250 million in revenue and runs a team-based proprietary process it calls “Assurance 360,” explicitly designed to generate multiple competing offers rather than negotiating with a single buyer. Its industry coverage includes professional services, distribution, logistics and technology alongside agriculture, healthcare and food and beverage. Axial ranked it #3 for Q2 2026 (Axial), a strong placement on a methodology that scores process effectiveness directly.
The relevant tradeoff is breadth versus depth. Cornerstone is a generalist across many industries rather than a business services specialist, so it may not know the specific platform buyers in your vertical as intimately as a niche firm. Its process discipline, which is what the Axial rank actually measures, is the reason to consider it.
Best for: owners who care most about a defined, repeatable process engineered to produce competing offers, and who value a larger internal team.
Peakstone Group
Peakstone Group is a Chicago-based investment bank founded in 2008 with more than forty investment banking professionals, whose managing directors average over twenty-five years of experience (Peakstone). Those managing directors have collectively executed 500-plus transactions and raised over $200 billion in capital across their careers, a career-long total rather than a Peakstone-only deal count. Axial has ranked Peakstone #1 for full-year 2022 and 2024 and #7 for Q2 2026 (Axial). Beyond sell-side M&A it offers capital raising and restructuring.
That breadth is the reason to call Peakstone: if your situation is not a clean full sale, for example taking some money off the table while raising growth capital, having those capabilities under one roof matters. The tradeoff with any firm of this size is that a smaller founder-owned services business sits toward the lower end of what a deep bench typically handles, so confirm which banker owns your process day to day.
Best for: owners who need capital raising or restructuring alongside a sale, or who want a large, experienced bench and are comfortable being one mandate among many.
What a Salt Creek-Run Process Looks Like
Knowing what buyers look for is half the battle. The other half is running a process designed to surface all the buyers interested in your business and create real competition between them. Here is how we approach it:
We start with positioning. Most founder-owned service businesses sell themselves short. They understate their margins, they don't quantify customer stickiness, and they let the founder's role overshadow the actual business. Before we reach out to anyone, we work with you to build a clean story about what you have built: recurring relationships that won't evaporate, real economics, and a team that can run without you.
Then we build a buyer list by hand: strategic acquirers, private equity platforms that specialize in your vertical, and family offices with active investment mandates in the space. We vet each one. We know which buyers move fast and which ones slow-walk. We know who plays hardball and who negotiates fairly. Then we approach them strategically, one by one, with material that makes them want to see your business.
From there it is a managed process. We run the data room, coordinate diligence, field offers, and negotiate terms. Most owners have never negotiated earnouts, working capital, indemnification, or rollover equity. We have, repeatedly, on both sides of the table. That experience gets paid for many times over on a deal this size.
Throughout, both principals work your deal directly. No hand-offs to an associate, no unreturned calls, and no fee until you get paid.
Where Salt Creek Advisory Fits
Salt Creek Advisory focuses on the $2 million to $75 million revenue range, and business services is one of our three core sectors. Our relevant experience is buy-side: Jack Pitts worked inside the private equity firms Blue Wolf Capital and Kingfish Capital, and Connor Pitts trained at Brown Gibbons Lang & Company before spending three years inside Cadence Education, where he worked through more than 40 acquisitions. To be precise, those 40-plus deals were early childhood education transactions worked from inside an acquirer, not business services sell-side mandates, and we would rather draw that line ourselves. What carries across is knowing how platform buyers build models, which diligence questions kill deals, and where owners concede value they did not need to. Run us through the same four tests used in this article: vertical fit, deal-size fit, verifiable evidence, and who actually does the work. Compare our answers against the firms above, and if a single-niche specialist knows your corner of the market better, hire them.
The Question to Ask Yourself
Before you reach out to anyone, honest answer: how much of your business depends on you personally? If the answer is a lot, that is not a disqualifier. It is just the thing to fix first. Every day you spend building a team that can run without you is a day your business becomes more valuable. An advisor can help you understand what that gap looks like and how much value it costs you. That conversation is free, and it is worth having before you start shopping around. Our guide on when to start exit planning lays out how much runway that work actually needs, and what buyers look for in an acquisition target covers the rest of the checklist.
The Bottom Line
Match the advisor to your vertical, then hold them to the numbers. If you run HVAC, plumbing, electrical, or another field-services business, The Advisory Investment Bank's #1 Axial placement and 4,500-acquirer database are hard to argue with. If you are in receivables, revenue-cycle, or BPO-style outsourced services, Kaulkin Ginsberg has thirty-plus years in exactly that niche. If your deal is larger or a foreign strategic buyer is plausible, FOCUS Investment Banking. If a defined multi-offer process matters most, Cornerstone. If you need capital raising alongside a partial sale, Peakstone.
If you are a founder-owned B2B services company in the $2 million to $75 million range and you want the people negotiating against Alpine, Shore, or Springdale to have already worked from inside a buyer, that is the gap we were built for. Whichever way you go, do two things: talk to at least two firms, and ask each one what the monthly fee is and whether it credits against the success fee at closing. Against the published benchmark of roughly 3.4% to 3.9% at $20 million, those two answers will tell you more about a firm than any ranking. For the broader field beyond business services, our guides to top lower middle market investment banks and advisors for a $20 million sale go deeper on fee structures and how to compare firms.