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Agency mandate origination: what two advisors learned.

Agency Mandate Origination: What Two Advisors Learned

Agency mandate origination works better than almost any other sector we run, and the reason is the agency owner. Across 54,454 emails to marketing agency owners in our dataset, 1.7 per 1,000 were open to a conversation about an exit or a partnership, and 28% of the owners who replied were open, the second-highest share of the twelve sectors we measured. Two advisors who specialise in agencies have now run sell-side origination with us long enough to show what that looks like in practice: one booked 34 owner meetings in six weeks, the other signed its first sell-side mandate inside 60 days.

DealSource Systems is the deal origination arm of Danish Lead Co, and both advisors appear here by name because their results are published case studies. The outreach figures come from our owner response rates by sector research and a new cut of the same data, reported at sector level as all our research is.

Why do agency owners answer when other owners do not?

Because in an agency the founder is the asset, and most founders have already wondered what an exit would look like. Clients, staff and pricing power often sit with one or two people, so the owner knows the business cannot simply be sold out from under them, and that a sale will often involve them for years, typically through an earnout. That makes the first conversation about options rather than about price, which is exactly the conversation an advisor is built for.

It also explains why the category rewards specificity. A performance marketing shop, a PR firm and a healthcare communications agency have different buyers, different multiples and different reasons to sell, and their owners can tell within a sentence whether the person writing understands that. For the buyer's view of the same category, see digital marketing agency acquisitions.

Which agency owners are most open to an exit conversation?

Smaller agencies, by a wide margin. We split the 54,454 agency owner emails in our dataset by the size band each list was built on, a cut we have not published before.

Agency size bandEmailsHuman replies per 1,000Open per 1,000 emailsEmails per open ownerOpen share of human repliesDo-not-contact share
$5m to $50m revenue27,2129.02.836331%23%
$10m to $500m revenue, 10 to 500 employees27,2423.70.71,36220%23%
All agency owner emails54,4546.31.757328%23%

The owners of $5m to $50m agencies replied two and a half times as often, were more open when they did, and needed about a quarter of the emails per open owner. The do-not-contact share was identical, so the larger agencies were not more annoyed, they were simply harder to reach and less curious. Our reading is that a larger agency usually has a management team, a CFO and sometimes an investor between the owner and an inbound email, and a founder with that much structure has often already chosen an advisor.

The two bands overlap between $10m and $50m and each rests on its own list and message, so treat the gap as a direction rather than a precise multiple. It is still the single most useful targeting decision we can point an agency advisor to.

What happened when two agency advisors ran it?

Both ran a standing function rather than a campaign, and both got to a commercial result fast.

TobinLeffAgency Futures
AdvisorM&A advisory for marketing and communications agenciesBoutique sell-side advisory for owner-operated agencies
PeriodFrom 9 August 2026, ongoingSeptember 2025 to end of February 2026
Headline result34 meetings booked in the first six weeksFirst signed sell-side mandate inside 60 days
Supporting numbers80 positive owner replies, 54 of them high intent; first meeting one day after the first email; a new client closed by week nine, then a second engagementAbout eight off-market founder conversations a week, sustained for more than four months
What made it workTesting segments and finding a six-fold spread in reply rate between agency sub-verticalsFive agency segments running in parallel, each with its own positioning

TobinLeff is an M&A advisory specialising in marketing and communications agencies. Its first meeting was booked the day after the first email, it had closed a new client from those conversations by week nine, and its blended result across every segment and message tested runs at roughly two and a half times our own platform average for positive replies. Agency Futures worked sell-side mandates, recapitalisations and strategic partnerships for owner-operated agencies, and one closed deal paid for the engagement, which is the arithmetic of sell-side origination: a small number of conversations decides the return.

How should an agency M&A advisor run mandate origination?

Run it as a set of segments, not as one list. This is the playbook both engagements point to:

  1. 1. Split the category before you write a word. Performance, PR, creative, healthcare and B2B agencies are different markets. Agency Futures ran five segments in parallel with separate positioning, and TobinLeff found a six-fold spread in reply rate between sub-verticals.
  2. 2. Start with $5m to $50m agencies. In our data they needed 363 emails per open owner against 1,362 for larger agencies. Larger firms are worth pursuing, through relationships, once the pipeline is running.
  3. 3. Lead with the owner's options, not your credentials. Agency founders are curious about what an exit would look like even when they are not ready for one. A first email that answers that curiosity earns the reply; a capabilities statement does not.
  4. 4. Be ready to talk the same day. TobinLeff's first meeting was booked one day after the first email. Reply handling speed decides how many of the open owners actually reach a call.
  5. 5. Measure meetings and mandates, not replies. TobinLeff's 509 replies mattered less than its 34 meetings, and the new client it closed by week nine mattered more than both, just as Agency Futures' first signed mandate did.
  6. 6. Keep it standing for months. Agency Futures held around eight founder conversations a week for more than four months. Mandates come from a flow of conversations, and a flow takes time to fill.

For the general version of this playbook, see M&A mandate origination. The firms that build their pitch around advisors are compared in deal sourcing firms for M&A advisors, and the same sector question for other advisors is answered in healthcare sell-side mandates and home services sell-side outreach.

Where does DealSource Systems fit?

DealSource Systems runs sell-side mandate origination for agency M&A advisors and boutique banks: segment mapping, owner-level lists, positioning per segment, sending infrastructure, reply handling and qualification. It is a flat $4,000 a month for a single defined thesis, with a 90-day minimum and no success fee; a dedicated multi-thesis mandate is $8,000 a month and above, and the pricing is published in full. If you want to see how these two engagements compare with the other five we have published, our deal origination case studies line them up.

Conclusion

Agency mandate origination rewards the advisor who treats the category as many markets and starts where owners are most willing to talk. In our data, owners of $5m to $50m agencies were about four times as open as owners of larger agencies, and the two advisors who ran it as a standing function got to 34 meetings in six weeks and a signed mandate inside 60 days. The founder being the asset is what makes agency owners answer. Segmenting and speed are what turn their answers into mandates.

Key Terms Glossary

Mandate origination: the work of finding business owners who will hire an advisor to sell or recapitalise their business.
Earnout: part of a purchase price paid after closing, depending on the business's later performance.
Segment: a slice of the agency market, such as PR or performance marketing, with its own buyers and its own message.
Emails per open owner: emails sent divided by owners open to a conversation.
High-intent reply: a positive reply in which the owner is ready to talk about a transaction, not only curious.

Frequently asked questions

How do agency M&A advisors win sell-side mandates?

By running a standing flow of first conversations with agency owners who are not yet in a process, segmented by agency type. TobinLeff booked 34 owner meetings in six weeks this way, and Agency Futures signed its first mandate inside 60 days.

Which agency owners are most open to selling?

In our data, owners of agencies with $5m to $50m in revenue: 2.8 open owners per 1,000 emails and 31% of those who replied, against 0.7 per 1,000 and 20% for agencies with $10m to $500m in revenue.

Why do agency owners reply more than other owners?

Because the founder is usually the asset, so most have already thought about what an exit would mean for them. Across our dataset, 28% of agency owners who replied were open to a conversation, the second-highest share of twelve sectors.

How fast can agency mandate origination produce meetings?

TobinLeff's first meeting was booked one day after the first email, and 34 meetings were booked in the first six weeks. A new client takes longer: TobinLeff closed one by week nine, and Agency Futures' first mandate came inside 60 days.

Should an agency advisor target large agencies?

Larger agencies are worth having, but in our data they needed 1,362 emails per open owner against 363 for $5m to $50m agencies. Most advisors are better served starting smaller and reaching larger firms through relationships.

What does agency mandate origination cost?

DealSource Systems charges a flat $4,000 a month for a single defined thesis, with a 90-day minimum and no success fee.

See this run on your mandate

Thirty minutes on your thesis, your current origination coverage, and the founder conversations this system would open in your market. The call goes to Martin directly. If we are not confident it fits, we will say so.

Confidential, and handled by the team that would run your mandate. Or read how the engine works first.