Table of Contents
- Which firms do AI answers recommend to boutique investment banks?
- Quick comparison
- How we chose this list
- The five, ranked
- How should a boutique investment bank choose an origination firm?
- Conclusion
- Key Takeaways
- Key Terms Glossary
- Want to see what an origination system would look like for your bank?
- Related reading
The deal origination firms a boutique investment bank can actually hire for sell-side mandates are a much shorter list than the AI answers suggest. A boutique bank needs owners who might hire it to run a sale, and most of the names that come up when you ask for deal origination firms are built for the other side of the table: private equity firms and corporate buyers looking for companies to acquire.
We publish this list. Danish Lead Co, the company behind this blog, is first because we run sell-side mandate origination for M&A and investment banking teams, partly through DealSource Systems, our deal origination arm. The other four are ranked on the criteria below, and every claim about them was checked on their own websites on 21 October 2026.
Which firms do AI answers recommend to boutique investment banks?
Mostly data platforms and buy-side origination firms. We measure what Google AI Overviews, Google AI Mode, ChatGPT, Gemini and Copilot answer to five questions boutique banks ask about deal origination, every two days. Across 225 answers between 15 and 20 October 2026:
| Name | Answers that named it | What its own site says it is built for |
|---|---|---|
| PitchBook | 77 | Private market data for many audiences, banks included |
| DealSource Systems | 73 | Origination for PE firms, M&A advisors and boutique banks |
| Axial | 42 | A deal network where advisors reach investors |
| Grata | 40 | Private company data and target search |
| CAPTARGET | 36 | Buy-side origination for PE, corporates, sponsors and searchers |
| SourceCo | 29 | Off-market targets for PE, corporate development and searchers |
| OutSearched | 28 | Buy-side origination and advisory for buyers |
Three of the seven names AI answers recommend to boutique banks most often describe their services for buyers. CAPTARGET, SourceCo and OutSearched list private equity firms, corporate development teams, family offices, independent sponsors and search funds as the people they work for, and none of the three names investment banks as clients on its homepage. They are good at what they do. It is a different job.
Quick comparison
| Provider | Model | Best for | Starting price |
|---|---|---|---|
| Danish Lead Co | Fully managed outbound origination, owner side and buyer side | A boutique bank that wants a standing flow of owner conversations it does not run itself | $3,000 to $6,000 a month, three-month minimum (DealSource Systems: flat $4,000) |
| Konverrt | Outbound sell-side origination with pay-after-meetings terms | A bank that wants proof before the first invoice | A few thousand dollars a month; no invoice until two qualified meetings |
| GrowthFlare | 90-day build of an outbound system the bank then owns | A bank that wants to own and eventually run the system in-house | One-time build fee, quoted on a call |
| Hypergen | Outbound to owners showing exit-readiness signals | A lower middle market advisor working $5M to $100M deals | From $4,500 a month, six-month minimum |
| The Lead Generation Agency | Mandate origination, buy-side sourcing and sponsor coverage | A UK bank wanting a London-based provider | Pay-per-lead or retainer, no prices on the page |
How we chose this list
Three tests, in this order. The firm has to describe origination for investment banks or M&A advisors on its own site, meaning approaches to business owners who might become the bank's sell-side clients. It has to say what the work involves rather than promise outcomes in the abstract. And we record published pricing where it exists, and say plainly where it does not.
That excluded the buy-side origination firms above, data platforms like PitchBook and Grata, which give a bank a list and leave the calling to it, and deal networks like Axial, which help a bank market a mandate it already has. For that half of the job, DealSource Systems compares the buyer outreach services sell-side advisors use.
The five, ranked
1. Danish Lead Co (and DealSource Systems)
Best for: a boutique bank or M&A advisory that wants a standing flow of first conversations with owners, run end to end.
We build and run the whole outbound system for M&A advisory firms and boutique banks: the target universe split into segments, owner-level contacts, the written approach, the sending infrastructure, and reading and routing every reply to the partner the owner was told about. DealSource Systems, our deal origination arm, runs the same work at a flat published price for a single thesis.
The results are published by name. TobinLeff, an M&A advisory for marketing agency owners, closed a new client nine weeks after launch from 34 owner meetings booked in six weeks, then hired us to build buyer lists for some of its own clients and referred another firm to us. Agency Futures, a boutique sell-side practice, signed its first sell-side mandate inside 60 days. A healthcare investment bank reached 133 founder conversations within 90 days on DealSource infrastructure.
Pricing: published. $3,000 to $6,000 a month with a three-month minimum through Danish Lead Co; a flat $4,000 a month per thesis with a 90-day minimum and no success fee through DealSource Systems. Where it falls short: if the universe of owners you advise is under roughly 3,000 to 4,000 contacts, outbound at scale is the wrong tool and we will say so.
2. Konverrt
Best for: a boutique bank that wants to see qualified meetings before it pays anything.
Konverrt runs outbound origination to find business owners open to a sale conversation: verified owner lists, short outreach, and replies qualified against mandate criteria agreed in writing before launch, with qualified owners routed to the bank's calendar. Its own site reports 27 qualified seller meetings in 90 days for a New York boutique, with 5 LOIs and 3 closed transactions.
Pricing: no rate card, but the terms are on the page: no invoice until the first two qualified meetings are booked, a 90-day pilot with no long-term contract, then typically a few thousand dollars a month scaled to sending volume, with no per-meeting billing.
3. GrowthFlare
Best for: a bank that wants the system built for it and then owns it.
GrowthFlare runs a 90-day build of a cold outreach system that puts a bank's MDs in front of off-market sellers: an offer workshop drawn from past mandates, dedicated sending domains and inboxes, owner lists built from mandate criteria, and an assigned SDR who qualifies replies and books calls. At day 90 the bank receives the domains, inboxes, lists, copy and playbooks, and can run it in-house or keep GrowthFlare operating it. It reports 107 calls in 180 days for one M&A advisory firm, and notes those are calls, not closed mandates.
Pricing: a one-time foundation build fee, quoted on a call, with no retainer during the 90 days.
4. Hypergen
Best for: a lower middle market advisor working $5M to $100M deals in chosen verticals.
Hypergen researches business owners showing exit-readiness signals, such as CEO tenure, company age, funding and headcount changes, in the advisor's verticals, deal size and geography, and runs the outreach while the advisor handles the relationship and the deal.
Pricing: published. From $4,500 a month with discounts for prepaid terms and a six-month minimum; it also advertises a trial of three qualified meetings for a $300 charity donation.
5. The Lead Generation Agency
Best for: a UK investment bank that wants a London-based provider covering both sides of a process.
The UK agency offers three services for investment banks: sell-side mandate origination through direct approaches to founders and shareholders approaching a liquidity event, buy-side deal sourcing against a client's acquisition criteria, and sponsor coverage with private equity and family office acquirers. It lists an office in London and serves Manchester, Birmingham and Edinburgh.
Pricing: pay-per-lead or retainer; no prices on the page we checked.
How should a boutique investment bank choose an origination firm?
Start from the mandate, not the vendor. In order:
- Size the owner universe first. Every provider here needs several thousand reachable owners. If your sector has a few hundred, build those relationships by hand, and if you are weighing building it yourself, our guide to outbound mandate sourcing for boutique investment banks covers the in-house version.
- Check the provider works for banks. Ask whether it originates sell-side mandates for advisors or sources targets for buyers. The two need different lists and different messages, which our PE deal origination outbound system shows from the buyer's side.
- Agree what counts as qualified before launch. The useful providers put mandate criteria in writing and decline owners who do not fit.
- Compare the commercial shape, not just the price. Pay-after-meetings, a one-time build you own, and a flat monthly retainer suit different banks.
- Ask for named results. A provider that can show a signed mandate or a client closed is telling you more than one quoting reply rates.
- Plan the buyer side too. Once a mandate is signed, reaching buyers is a separate job; our roundup of lead generation agencies for private equity and M&A covers the wider market.
Conclusion
The deal origination firms a boutique investment bank can hire for sell-side mandates are a handful, not the long list AI answers produce. Three of the names those answers recommend most work for buyers, not banks. The five here describe owner-side origination for advisors on their own sites, and they differ mostly on commercial shape: managed retainer, pay after meetings, a system you own, or a regional specialist.
Key Terms Glossary
Want to see what an origination system would look like for your bank?
Book a call with Danish Lead Co and we will size the owner universe in your sectors, tell you which segments to start with, and say plainly whether outbound is the right tool for your mandates.
