L Squared Locks In BTX Precision Hold via Continuation Fund

L Squared Capital Partners just chose to keep BTX Precision rather than sell it. The Dallas-based mid-market firm closed a continuation fund this week that extends its ownership of the environmental testing and consulting platform—giving existing limited partners the option to cash out or roll equity into what's effectively a second hold period. Most chose to stay in.

It's a structure that's become common among buyout shops sitting on appreciated assets in sectors where the next three years look better than the last three. L Squared's thesis: BTX sits at the intersection of infrastructure spending, stricter EPA enforcement, and an aging industrial base that needs more environmental compliance work, not less. Selling now would mean handing that upside to someone else.

The continuation fund was anchored by Lexington Partners, the secondaries giant, alongside a handful of other institutional buyers. L Squared didn't disclose the fund size or valuation, but the structure tells the story: the firm believes it can generate another 2-3x from here, and its LPs—many of whom have been in since the original acquisition—agreed enough to reinvest rather than take liquidity.

BTX Precision, headquartered in Gonzales, Louisiana, provides environmental testing, remediation consulting, and compliance services across the Gulf Coast and beyond. The company works with industrial clients—refineries, chemical plants, utilities—that face escalating scrutiny from federal and state regulators. Since L Squared's original investment, BTX has added lab capacity, broadened its geographic footprint, and absorbed several tuck-in acquisitions to deepen its service mix. Revenue has grown steadily, but the real value creation story, according to L Squared's announcement, is what comes next—not what already happened.

Continuation vehicles—sometimes called GP-led secondaries—have exploded over the past five years. According to Evercore's 2025 secondaries market report, GP-led transactions accounted for roughly $70 billion in volume last year, up from $30 billion in 2021. The structure is simple: a GP takes one or more portfolio companies out of an aging fund, transfers them into a new vehicle, and gives existing LPs a choice—cash out at today's valuation or roll into the new fund and bet on additional upside.

For GPs, it solves a timing problem. Traditional fund life is 10 years, and many firms hit that mark with assets they're not ready to sell—either because the market's soft, the strategic buyer universe is thin, or the company's growth trajectory hasn't peaked. Selling into a weak exit environment crystallizes mediocre returns. A continuation fund resets the clock.

For LPs, the structure is more contentious. Critics argue it lets GPs avoid accountability for missing exit windows and creates conflicts of interest—who's to say the valuation in the transfer is fair? Proponents counter that LPs get real liquidity if they want it, and those who stay in do so voluntarily. The middle ground: continuation funds work well when the underlying business has genuine momentum and the GP can articulate a credible plan for the next value creation phase.

L Squared appears to be banking on the latter. The firm's statement emphasized that the majority of existing investors chose to roll their equity rather than exit—a sign that the thesis isn't just the GP talking its own book. When LPs with full information opt to stay in, it's a referendum on the plan.

BTX operates in a corner of the industrials economy that's easy to overlook but hard to offshore: environmental testing and compliance. Refineries, chemical plants, and utilities need to test soil, water, and air quality continuously—both to meet regulatory requirements and to manage liability. The work is technical, local, and recurring. It's not software-margin beautiful, but it's sticky, and demand correlates with regulatory intensity more than GDP growth.

The regulatory backdrop has shifted. The EPA under the current administration has ramped up enforcement actions and tightened standards around PFAS (per- and polyfluoroalkyl substances), lead in drinking water, and hazardous waste site remediation. According to EPA enforcement data, civil penalties and compliance orders issued to industrial facilities rose 40% year-over-year in 2025. That translates directly into more testing, more consulting, and more demand for firms like BTX.

Infrastructure spending adds another layer. The 2021 Infrastructure Investment and Jobs Act allocated billions for brownfield remediation, water system upgrades, and Superfund site cleanup. Much of that money is flowing now, and it's creating multi-year visibility for environmental services providers. BTX's Gulf Coast footprint positions it well—the region is dense with aging petrochemical infrastructure and ports that need compliance work.

But here's the tension: regulatory tailwinds are real, but they're also policy-dependent. A different administration or a budget-constrained EPA could slow enforcement, defer cleanups, or ease standards. L Squared's bet is that the structural demand—aging infrastructure, heightened public scrutiny, corporate liability management—overwhelms the policy risk. That's plausible, but it's not guaranteed.

The table shows where BTX's growth drivers sit on the durability spectrum. The strongest case for the continuation fund rests on the bottom row—structural demand from an industrial base that isn't getting younger.

L Squared's original investment in BTX was classic mid-market PE: acquire a founder-owned business with strong local market share, professionalize operations, add acquisition capacity, and roll up smaller competitors. The firm has executed that playbook across its portfolio—prior deals include Gulf Coast infrastructure services businesses and other regionally focused industrial platforms.

BTX's growth strategy from here is straightforward: more tuck-ins, more labs, more geographies. Environmental testing is a fragmented market—hundreds of small, often family-owned labs and consulting shops serve local markets. Consolidation is slow but rational. A scaled platform like BTX can offer better pricing to large industrial clients, invest in specialized testing equipment that small labs can't afford, and cross-sell services across a broader footprint.

The math works if you can buy small labs at 4-6x EBITDA and integrate them into a platform trading at 10-12x. That arbitrage funds growth without diluting returns. It's not a novel strategy—it's the mid-market PE handbook—but it requires patience. You need two to three years post-acquisition to integrate, optimize, and demonstrate margin improvement to a buyer.

That's the timeline L Squared is signing up for with the continuation fund. The firm told investors it sees a path to doubling EBITDA over the next three years through a combination of organic growth and add-ons. If that happens, the continuation fund works. If integration stalls, organic growth disappoints, or the exit market stays cold, the LPs who rolled equity will regret not taking liquidity now.

One wrinkle: acquisition financing just got more expensive. The cost of debt has risen sharply over the past two years, and while BTX likely has access to credit given its recurring revenue profile, the spread between what you pay to buy a tuck-in and what you earn on the integrated EBITDA has compressed. That makes the arbitrage tighter and puts more pressure on operational execution to drive returns.

L Squared isn't alone in this thesis. Several mid-market PE firms have built or acquired environmental services platforms in the past few years. AE Industrial Partners owns TestAmerica, one of the largest environmental testing networks in the U.S. Saw Mill Capital has rolled up environmental consulting firms. H.I.G. Capital owns several specialized labs focused on PFAS and other emerging contaminants.

The competition for add-ons has intensified. Five years ago, a regional environmental lab might field one offer from a strategic acquirer and one from a private equity platform. Today, it's more like three to five platforms bidding, plus a strategic. That's pushed tuck-in multiples higher and made it harder to execute the arbitrage cleanly. L Squared's advantage with BTX is that the platform is already scaled—it's not starting from scratch.

Lexington Partners is one of the most active secondaries buyers in the world—it's deployed over $70 billion across GP-led and LP-led transactions since inception. When Lexington anchors a continuation fund, it's doing deep diligence on the business, the market, and the GP's execution capability. It's not a rubber stamp.

Lexington's involvement here suggests that BTX's fundamentals passed institutional scrutiny. The firm wouldn't commit capital if it thought the continuation fund was just a face-saving exercise for a missed exit. That doesn't mean the investment is risk-free—Lexington has a different return hurdle than the original LPs—but it does validate that the growth story has legs.

It also tells you something about pricing. Lexington negotiates hard. If the valuation transfer from the old fund to the new vehicle was inflated, Lexington wouldn't play. The fact that it did implies the valuation was at or below where a third-party strategic buyer might have bid in a sale process—which makes the LPs' decision to roll equity more rational.

The structure creates an interesting dynamic: Lexington and the rolling LPs are now aligned on executing the next phase, but they came in at potentially different basis points. If the continuation fund exits at a strong multiple, everyone wins. If it exits flat or down, the rolling LPs—who've been in since the original deal—will have lower blended returns than Lexington, which stepped in later. That's the trade-off of staying in.

Not everyone rolled. L Squared's announcement noted that the majority of LPs opted to stay in, which means a meaningful minority took liquidity. Why sell if you believe in the thesis?

Several reasons. Some LPs have liquidity mandates—they need cash back to meet distribution requirements or rebalance portfolios. Some are skeptical of continuation funds on principle, viewing them as a way for GPs to avoid accountability. And some may have simply decided that a guaranteed exit today beats an uncertain return three years from now, even if the upside case is compelling.

Continuation funds reset the clock, but they don't eliminate the exit question—they defer it. L Squared now has to find a buyer or take BTX public within the next three to five years, and the pressure to deliver a strong outcome is higher, not lower. The rolling LPs stayed in expecting a return. Lexington stepped in expecting a return. The GP's carried interest depends on delivering one.

The most likely exit path is a sale to a larger strategic buyer—a national environmental services firm, a publicly traded testing conglomerate, or a larger PE-backed platform looking to add Gulf Coast density. BTX is too small for a standalone IPO, and the public market appetite for industrial services businesses is muted unless you're generating software-like margins, which BTX isn't.

The strategic universe includes firms like AECOM, Jacobs Engineering, and Tetra Tech—all of which have environmental consulting and testing divisions and have done M&A in the space. The question is whether BTX can reach a scale and margin profile that makes it attractive at a valuation that delivers the returns L Squared is underwriting.

If the market for exits softens further, L Squared could face the same problem three years from now that it faced this year—holding an appreciated asset with no natural buyer. That would force another continuation fund or a sale at a lower multiple. The continuation fund buys time, but it doesn't eliminate execution risk.

How do these structures actually perform? The data is mixed. According to Evercore, GP-led secondaries delivered a median net IRR of 18% over the past decade—slightly below traditional buyout fund returns but above the performance of many aging fund tail-ends. The dispersion is wide, though. Some continuation funds generate outsized returns when the GP executes a clear value creation plan. Others underperform because the original thesis didn't improve, and the GP was just delaying a mediocre exit.

The best outcomes tend to share a few characteristics: the business had a genuine inflection point ahead (regulatory change, market expansion, product launch), the GP had a concrete plan beyond 'hold longer and hope,' and the rolling LPs had conviction, not just inertia. L Squared's case for BTX checks those boxes on paper. Whether it delivers in practice is the next three years' story.

These are illustrative, not disclosed, but they show the range of outcomes that rolling LPs are implicitly underwriting. The base case requires solid execution. The upside case requires everything going right. The downside case means the continuation fund was a mistake.

One thing's clear: L Squared didn't extend this hold just to tread water. The firm's public comments emphasize growth, expansion, and market opportunity. That's the right framing if you're asking LPs to re-up. Whether the fundamentals cooperate is another question.

The BTX continuation fund is a bet on regulatory durability, fragmented market consolidation, and a GP's ability to execute a buy-and-build playbook under tighter financial conditions. It's not a moon shot, but it's not a sure thing either.

Key indicators to track over the next 12-18 months: acquisition pace (is BTX closing tuck-ins at a rate that supports the growth plan?), margin trajectory (are integrations delivering the promised cost synergies?), and regulatory enforcement trends (is EPA activity sustaining or softening?). If BTX announces two to three add-ons in the next year and EBITDA margins expand, the thesis is on track. If integration slows or organic growth stalls, the continuation fund starts looking like a delayed exit rather than a value creation move.

The other thing to watch: how other mid-market firms with aging environmental services platforms respond. If L Squared's structure works, expect more continuation funds in this sector. If it struggles, expect more near-term sales—even at softer valuations—because LPs will lose patience with the 'just wait a bit longer' pitch.

For now, L Squared and its LPs have chosen to stay in the game. Whether that decision looks smart in 2029 depends on what happens between now and then—and not much of that is guaranteed.