Key Takeaways

  • Mid-market infrastructure sponsors are engineering liquidity before entry rather than counting on multiple expansion or loose refinancing windows.
  • Sam Lissner identifies three distinct buyer archetypes during due diligence: regulated utilities with lower capital costs, core funds seeking long-duration yields, and mega-fund portfolio companies hunting scale.
  • Mac Bell highlights that Fengate Asset Management's 2017 vintage Fund III has already exited half of its investments, providing realized DPI during an otherwise frozen fundraising environment.
  • Value creation across mid-market water utilities, short-line rail, and data centers comes from platform add-ons and contract de-risking, not financial engineering.
  • Realized liquidity in closed-ended vehicles requires Lissner's Pre-Investment Exit Underwriting Framework.

Lissner's Pre-Investment Exit Underwriting Framework

Step 1: Identify Natural Successor Ownership

Ask during due diligence who the next natural owner of the business will be (e.g., a regulated utility with lower cost of capital, a core infrastructure fund seeking long-duration yield, or a mega-fund portfolio company seeking scale and synergies).

Step 2: Define Buyer Value Drivers

Determine what specific operational, regulatory, and financial characteristics that target buyer will value and pay a premium for.

Step 3: Formulate Scalability and Resilience Initiatives

Define concrete operational milestones to execute during the holding period, such as strengthening management, investing in systems, expanding geographically, and completing add-on acquisitions.

Step 4: Package a Scaled Platform with a Credible Next Chapter

Position the stabilized business so the incoming buyer has a clear operational trajectory to further scale and enhance the platform.

When This Works (and When It Doesn't)

This framework functions best in closed-ended mid-market infrastructure funds investing in fragmented sub-sectors like US municipal water, regional short-line freight rail, and edge digital infrastructure. In these sectors, smaller assets can be bought at attractive entry multiples, professionalized, and assembled into platforms that large-cap managers cannot build directly. As Lissner puts it: “A utility may bring a different cost of capital or regulatory footprint. Core infrastructure fund may have a longer duration ownership model. A mega fund portfolio company may provide economies of scale or geographic reach or strategic synergies.”

It stumbles when managers misjudge market structure. If a sponsor builds an asset tailored solely for a single strategic buyer, a sudden shift in that acquirer's balance sheet or regulatory approvals can kill the exit. Similarly, when macroeconomic conditions drive up borrowing costs across the board, long-duration core funds often pull back from acquisitions, leaving mid-market sellers holding assets with higher capital expenditure demands than anticipated.

Why It Matters

Infrastructure fundraising contracted sharply in 2026, shifting LP attention from paper markups to distributed cash. As Bell explains: “Starting with the end buyer in mind is critically important because we know that we're looking to exit in our closed-ended funds. And we want to make sure that before we put our capital to work in something, we already have a game plan of how we will exit so that we're not stranded with an asset that we can't get out of.” For Fengate, that discipline produced tangible returns: “Our 2017 vintage fund, that was our initial close. Fund three has already exited about a half of them so far. So our DPI is continuing to creep up, which is fantastic, especially when we're marketing a new fund.”

This dynamic exposes a growing split in private infrastructure. Mega-funds managing tens of billions often struggle to find buyers capable of writing multi-billion-dollar equity checks, trapping their capital in extended hold periods. In contrast, mid-market platforms built around clear downstream buyers can trade smoothly to strategic utilities or core open-ended vehicles. In an illiquid market, exit engineering is the primary driver of top-quartile performance.