Introduction
The origin of an acquisition idea rarely becomes public, but a merger proxy sometimes records it in a sentence. ORBCOMM's 2021 merger proxy says PJT Partners introduced GI Partners to the company's management in December 2020 because it knew from earlier conversations that GI's data infrastructure team wanted Internet of Things (IoT) and fleet telematics businesses, and because ORBCOMM had said it would meet relevant financial sponsors. Neither fact was a valuation. One described the buyer's mandate, the other the owner's willingness, and the idea existed where they met. Idea generation for a sponsor is the search for those intersections, and the sponsor book is where a coverage team keeps them, a page per idea, revised as funds age and owners' circumstances change. Each page has to answer why this sponsor, why this company and why now.
Screening Targets Against a Fund's Written Mandate
A sponsor's mandate is more specific than its website suggests, because its limited partners (LPs) are told what they are funding. When New Jersey's Division of Investment recommended a commitment of up to $150 million to Hg Saturn 4 in January 2025, the staff memo to the State Investment Council set out the box. Hg, the London-based software specialist, targeted eight to ten platform investments with equity checks above $1.25 billion, in companies with enterprise values above $1.5 billion and earnings before interest, taxes, depreciation and amortization (EBITDA) above $50 million, headquartered in Europe or transatlantic, in named software groupings such as tax and accounting, payroll, and legal and regulatory compliance.
The box is literal. In January 2026 Hg agreed to buy OneStream, a Michigan-based finance software provider taken public by KKR in 2024, for about $6.4 billion of equity value, completing on April 1, 2026, according to OneStream's announcements: finance software, transatlantic, far above the size floor. Filtering a universe by size and fit is the mechanical part, covered in the analyst's target screen.
Hard Limits in the Fund Agreement
Behind the strategy sit contractual limits. The Institutional Limited Partners Association (ILPA) model limited partnership agreement term sheet lists investments a fund will not make without its advisory committee's consent, leaving percentages to negotiation:
- More than a set share of commitments in a single portfolio company or one sector.
- Companies outside the target region.
- Publicly listed securities, other than through an existing portfolio company's offering.
- Investments linked to a hostile bid.
Sector exclusions often sit in the general partner's environmental, social and governance (ESG) policy, which the term sheet binds the fund to; the clauses are covered in the Private Capital Advisory guide's limited partnership agreement article.
- Concentration Limit
A cap in a private equity fund's limited partnership agreement on the share of total commitments that may go into one portfolio company, and sometimes one sector, without advisory committee consent. It sets the largest equity check one fund can write alone.
On a page, the limit becomes arithmetic. Hypothetically, a $5 billion fund capped at 15% can put about $750 million into one company; an idea needing more equity needs consent or partners, as in club deals and co-investment syndication.
Soft Limits: Leverage, Control and Reputation
Other limits are house style: sponsors that rarely take minority stakes, avoid cash flows that cannot carry their usual leverage, or shun sectors their LPs dislike even where no clause forbids them. These preferences show in the deal record, in the processes a sponsor entered, the leverage it accepted and the deals it walked away from.
What Makes an Acquisition Idea Actionable
Fit makes an idea possible; a reason for the owner to act makes it actionable. Most well-fitting companies are not for sale, so a bank adds a view on timing: a fact suggesting the owner may sell, take a partner or split the business while the fund is investing. Such facts cluster by owner type:
| Owner | Trigger | Where it surfaces | What the page must test |
|---|---|---|---|
| Founder or family | Succession | Industry bankers, advisers, lenders | Appetite for a partial sale |
| Corporate parent | Non-core unit | Earnings calls, investor days | Separation cost |
| Listed company | Derating, activist stake, strategic review | Share price, filings | The premium a board needs |
| Sponsor owner | Fund age | Fund vintage, pension tables | Exit near the mark |
| Leveraged owner | Debt maturity | Loan terms, ratings | Sale versus refinancing |
Listed companies give the most visible signals. An investor crossing 5% of a listed company's voting shares with intent to influence control must file a Schedule 13D within five business days, a deadline the Securities and Exchange Commission (SEC) shortened in February 2024, and campaigns for a sale or break-up often create a take-private trigger, as shareholder activism and the banking work around it explains. The clearest signal is the board's own.
- Strategic Alternatives Review
A board-led process, often announced publicly, in which a company weighs options such as a sale, merger, divestiture, recapitalization or remaining independent, usually with a financial adviser. It signals that offers will be considered, not that a sale will happen.
For sponsor-owned targets, the trigger is usually the owner's fund, read through the fund lifecycle from the coverage seat. For take-private ideas, the page must show that a premium the board could accept still leaves the sponsor its return, the question behind US take-privates from the sponsor seat.
Anatomy of a Sponsor Book Page
A client pitch book follows a fixed sequence, laid out in the standard pitch book structure. A sponsor book page is shorter, each block answering an objection the deal partner will raise:
- Snapshot: the business, its scale and recent performance.
- Why this sponsor: the buying fund, the check against its mandate, and any portfolio company it would join.
- Owner and motivation: the trigger and the evidence for it.
- Indicative value and leverage: a range, with the debt lenders would likely provide.
- The bank's angle: its relationship with the owner, the financing it could commit and any conflict that limits its role.
The value block borrows the logic of what a financial buyer can afford. Add-on ideas use the same blocks but start from the portfolio company's plan, the approach in the sponsor value creation playbook.
The book is maintained, not produced. Each page carries a status (shown, passed, live or dead) with the date and reason for every change, and pages return when a fact moves: a pass on price after a share price fall, a pass on timing when a successor fund holds its first close. The book also records who has seen what, because showing one founder-owned company to five sponsors in a week can reach the owner as a sale rumor.
Following Up and Turning Ideas Into Mandates
How Sponsors Respond to Ideas
Sponsors rarely buy the first idea a bank shows them. A pass is information: too small, the wrong sector, an unreachable price, or an owner the sponsor knows will not sell. Recorded, the reasons sharpen the next page; ignored, they return as the same idea in a new deck. Volume costs analyst and partner time on both sides.
Follow-up also respects the information line: public-information ideas travel freely, a seller's plans from the bank's own pipeline do not without that client's consent and the control room's clearance, as described in how sponsors source deals and where banks fit.
From Introduction to Mandate: ORBCOMM and GI Partners
With Raymond James, ORBCOMM had contacted eight private equity firms in 2020, not including GI, and declined an indication of about $5.00 a share. GI sent a letter of intent at $10.50 in February 2021. PJT disclosed its prior relationships with GI to the board, which interviewed several advisers and hired PJT as its non-exclusive financial adviser. The merger agreement was signed in April at $11.50 with a go-shop; Evercore advised GI, and four lenders committed $410 million of debt. The deal, valuing ORBCOMM at about $1.1 billion including net debt, completed in September 2021.
The introducing bank earned the seller's mandate; the buyer's advice and debt went elsewhere. An idea can convert into:
- Buy-side advice, when the sponsor wants the bank to carry the approach.
- Acquisition financing, when the bank can commit debt for the bid.
- A role with the seller, when the owner relationship is stronger and conflicts were disclosed early.
How a buy-side engagement is scoped and paid is covered in buy-side advisory for sponsors.
Over time, the record of passes becomes a more precise mandate than any memo. A fund's LP documents say what it may buy; the reasons a sponsor gives for declining twenty pages say what its investment committee will approve, at what price and from which kind of seller. The strongest pages are written against that second mandate, which no fund publishes and only a well-kept book can reconstruct.
