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October 22, 2026·11 min read·LBO · Capital Structure · Tech · Returns

The Avaya LBO: How TPG and Silver Lake's $8.3B Enterprise Telecom Bet Filed Chapter 11 Twice in Six Years

In October 2007 TPG and Silver Lake took Avaya private for $8.3B at $17.50 per share. Nine years later the company filed Chapter 11 and wiped the sponsor equity. Five years after that, the reorganized company filed Chapter 11 again and wiped the public shareholders. Inside the slow-motion LBO bust.

Most peak-cycle 2007 LBO failures end quickly. TXU filed in year seven. Harrah's slid into Chapter 11 at the operating subsidiary in year seven. Chrysler was gone in twenty-one months. The deal that ends in bankruptcy usually ends there well inside the fund's hold period, while the sponsors still own the equity.

Avaya is the opposite case. TPG and Silver Lake closed the $8.3 billion take-private of Avaya on October 26, 2007 — three months before Bear Stearns, five months before the leveraged-loan market seized up, and about as close to the top of the pre-crisis LBO cycle as any mega-deal got. The company then serviced ~$6 billion of debt for more than nine years before finally filing Chapter 11 in January 2017. The restructuring wiped the original sponsor equity and handed the reorganized company to its creditors.

That reorganized company then listed on the NYSE in January 2018, ran for about five years as a public enterprise telephony vendor, and filed a second Chapter 11 in February 2023 — this time wiping the public shareholders. Two bankruptcies, two sets of equity holders extinguished, one business that is still trading somewhere under the Avaya name. This is what a slow-motion LBO bust looks like.

What the deal was

Avaya was the pure-play enterprise-communications business — PBXs, call-center systems, enterprise desk phones — that Lucent Technologies had spun out in October 2000. By 2007 it was a mid-cap NYSE-listed hardware company whose main competitors were Cisco (growing fast) and Nortel (already struggling). On June 4, 2007 Silver Lake Partners III, L.P. and TPG Partners V, L.P. announced a definitive merger agreement to take the company private.

Deal termValue
Price per share$17.50 cash
Premium to May 25, 2007 close ($13.67)28%
Premium to prior 30-day average~33%
Aggregate shareholder consideration~$8.21B
Total funds required (incl. ~$0.28B fees)~$8.49B
Transaction value at close~$8.3B
Each sponsor equity commitment (Silver Lake and TPG)up to ~$1.097B each
Co-invest equity from debt-financing affiliates (per proxy)~$0.45B
Debt financing arrangersJPMorgan, Morgan Stanley, Citigroup
ABL revolver at close (undrawn)$335M
Stockholder voteSeptember 28, 2007
Closing dateOctober 26, 2007

Two things in that table matter more than the headline $8.3 billion.

The first is the price. Credit Suisse's own fairness opinion inside the merger proxy applied trading-comparables multiples of 6.5x–8.5x estimated 2007 EBITDA, which implied a per-share equity reference range of $11.58–$14.52. The precedent-transactions analysis landed in roughly the same band. The $17.50 agreed price sat materially above that range — about 20% above the top end of the trading-comps band. The banker's math said the sponsors were paying a strategic premium on an industrial-tech business. The thesis had to be strong enough to earn that premium.

The second is the capital structure. Each sponsor contributed about $1.1 billion of cash equity. Total initial sponsor-group equity, including the debt-financing affiliates' co-invest, was roughly $2.65 billion against a ~$5.5 billion debt stack. That is roughly 32% equity in the sources-and-uses — not aggressive by 2007 mega-LBO standards (Freescale was lower, Harrah's was lower), but still far enough levered that the thesis had to work for the capital structure to work.

For a reader who wants to see how the sources-and-uses math balances at this scale, the sources & uses post walks through the standard template and the three errors junior associates make with it. To pressure-test whether a given debt-service burden is sustainable at a given EBITDA level, the free debt capacity calculator will surface which covenant binds first under which stress scenario.

The thesis — and the market that killed it

The LBO thesis for Avaya rested on three claims.

The first was that enterprise voice was a mature oligopoly that would consolidate around a handful of integrated hardware vendors. Avaya was the market leader in enterprise PBXs; the next leg of consolidation would be grabbing Nortel's installed base as Nortel declined. The second was that cash flow from the installed base — the maintenance, services and upgrade stream from the millions of PBX seats already in production — was defensible even if new PBX sales slowed. The third was that private-equity ownership could cut cost, exit non-core businesses and run the balance sheet more aggressively than Avaya's public-company management had.

All three claims aged badly.

Enterprise voice in 2007 was not a mature oligopoly. It was a market three years into being replaced. Cisco had been pushing VoIP into the enterprise aggressively since the mid-2000s. Microsoft was building Office Communications Server (the ancestor of Skype for Business, which later became Teams). RingCentral was founded in 2003 and would go public in 2013. Zoom would be founded in 2011. The thesis that premium-priced on-premises PBXs would continue to generate the cash flow that supported the debt stack assumed a world in which enterprises kept buying hardware. They did not.

The installed base held up longer than the new-sales thesis — maintenance revenue is sticky, enterprises take years to rip out a working phone system — but every year the stickiness bought was a year the capital structure needed back. And the cost cuts and divestitures that private-equity ownership was supposed to deliver ran into the same macro problem: a cost-cut hardware business is still a hardware business in a world moving to cloud software.

Doubling down on Nortel in 2009

Rather than retrenching, Avaya doubled the thesis. On December 18, 2009 Avaya closed the acquisition of Nortel Networks' Enterprise Solutions business out of Nortel's Chapter 11, for $943 million in cash at close ($933 million final after post-closing adjustments). Avaya had opened at a $475 million stalking-horse bid; its final price reflected a competitive auction against Siemens Enterprise Communications and Gores Group. Approximately 6,000 Nortel employees transferred to Avaya.

The strategic rationale was that Nortel's installed base, patents and enterprise networking capability would push Avaya past Cisco in enterprise telephony. In practice the deal added installed base at the exact moment installed base was ceasing to be the asset the sponsors had thought it was. It also added integration risk, cultural dilution, and roughly a billion dollars of fresh cash outlay on top of a capital structure that was already servicing $5+ billion of LBO debt.

Avaya filed to IPO in 2011 — a reported ~$1 billion offering that would have valued the whole company at roughly $5 billion. The offering never priced. That the sponsors were trying to monetize at a $5B valuation on a company they had bought for $8.3B four years earlier is a quiet admission that the thesis was already in trouble.

The 2017 Chapter 11

By FY2016, Avaya was paying about $470 million of annual interest expense against total debt of roughly $6.3 billion. The business was still generating cash — this was never a liquidity crisis in the classic sense. It was a maturity-wall problem. The debt instruments the sponsors had financed in 2007 were coming due in 2017 and 2018, and no refinancing offer the company could get at those terms worked at the business's declining EBITDA trajectory.

CEO Kevin Kennedy framed it bluntly on the filing: "Avaya's current capital structure is over 10 years old and was put in place to support our business model as a hardware-focused company." On January 19, 2017 Avaya filed voluntary Chapter 11 petitions in the U.S. Bankruptcy Court for the Southern District of New York with a committed $725 million debtor-in-possession facility underwritten by Citibank. The company had explored selling its contact-center business to Clayton, Dubilier & Rice before the filing but couldn't reach a deal.

The reorganization took almost all of 2017. Avaya emerged in mid-December 2017 having reduced total debt by approximately $3 billion and holding more than $300 million in cash. The equity in the reorganized company was issued to pre-petition creditors — predominantly senior secured bondholders — under the plan of reorganization. The original 2007 sponsor equity in the pre-petition Avaya Inc. parent was substantially extinguished rather than monetized. Contemporaneous reporting put the sponsors' loss at most of the ~$2 billion they had invested across the 2007 LBO and the 2009 Nortel acquisition.

For context on how long sponsors can hold a stuck LBO before writing it down, see the piece on PE hold periods and the 2010 Hilton debt restructuring — Blackstone's patience there is the counterexample that proves the Avaya rule. Patience alone doesn't save an LBO; the thesis has to actually come back.

The five-year afterlife — and the second Chapter 11

Avaya's common shares began trading on the NYSE under the ticker AVYA on January 17, 2018. The new equity holders were the 2017 creditors, now cashing out through a conventional public float. The reorganized company had less debt (~$3 billion reduced), more cash, and ostensibly a cleaner capital structure. What it still had was the same underlying business — on-premises enterprise communications — competing against the same cloud-native incumbents that had killed the first thesis.

The business did not recover. In August 2022 Avaya warned of substantial doubt about its ability to continue as a going concern. On February 14, 2023 Avaya Holdings Corp. and certain subsidiaries filed prepackaged Chapter 11 petitions in Houston. The plan targeted a reduction of total debt from approximately $3.4 billion to roughly $800 million — a cut of more than 75%. More than 90% of secured lenders had signed the restructuring support agreement before filing. DIP financing commitments totaled $628 million: a $500 million term loan led by Apollo and Brigade plus a $128 million Citigroup-led facility, with another $150 million of new money expected through a rights offering.

The 2023 wipeout fell on the public AVYA shares — the equity that had been issued to the 2017 creditors. Those shares were cancelled worthless on emergence.

Two bankruptcies. Two separate equity cohorts extinguished. One operating business that still exists. The Avaya story is specifically the story of what happens when a leveraged capital structure is overlaid on a secularly declining end-market: the business can survive the leverage once, but each round of equity has to be wiped before the balance sheet works for the underlying revenue trajectory.

What this says about peak-cycle LBO returns

The teaching lesson is not that Avaya was a bad deal because it was a 2007-vintage deal. The 2007 vintage includes Hilton, which returned $14B. It is specifically that the entry multiple sat above the banker's fairness range on a business whose end-market was in the early innings of a cloud transition, and that mid-hold doubling-down on the same thesis (Nortel 2009) accelerated the problem rather than solving it.

The returns math is painful. A ~$2.65 billion initial sponsor-group equity check (plus additional capital funded alongside the 2009 Nortel acquisition) sat in the capital structure for over nine years and was substantially written off at the 2017 Chapter 11. Even at a generous estimate of recovered management, transaction and monitoring fees, this is a near-total-loss outcome at the LBO-equity level. The IRR is deeply negative.

For a reader comparing deal outcomes across the library, the MOIC vs IRR post walks through why hold-period math matters as much as the multiple of money. Avaya is the extreme case: a near-zero MOIC compounded across nine-plus years produces an IRR that is worse than losing the money immediately in year one.

The practical takeaway

Three things worth remembering from Avaya for any PE associate or junior IB banker modeling a hardware-business LBO:

Secular decline eats leverage. A business whose end-market is in secular decline cannot carry an LBO capital structure, no matter how good the installed-base cash flow looks today. The leverage multiplies the exposure to a trajectory the sponsors cannot control.

Price above the fairness range costs you optionality. The $17.50 price was ~20% above Credit Suisse's trading-comp midpoint. That premium was the margin the thesis had to earn back. When the thesis didn't work, the premium became the thing that pushed the deal into Chapter 11.

Mid-hold acquisitions on top of levered balance sheets compound the thesis risk. Nortel Enterprise Solutions in 2009 cost ~$940 million of fresh cash and added integration complexity to an already-levered deal. If the base thesis is right, the add-on amplifies it. If the base thesis is wrong, the add-on amplifies that too.

Read the capital structure before you read the pitch deck.

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