Founders rarely lose leverage because they do not know every legal term in a deal. They lose leverage when a buyer uses the vocabulary of M&A to move faster than they can respond.
This glossary explains the 40 terms SaaS, AI, and tech founders are most likely to encounter when researching an exit, reviewing an LOI, preparing a data room, or comparing acquisition offers. The definitions are intentionally plain English. Each term opens with a clean definition and then explains why it matters in a tech exit.
Use this as a reference before buyer conversations, during exit planning, or when aligning your board, investors, and management team around process language.
SaaS M&A terms
ARR / MRR
ARR and MRR are recurring revenue metrics that annualize or monthly-track subscription revenue. In a SaaS exit, they help buyers separate durable revenue from services, one-time implementation, or usage spikes. Buyers will test what is truly recurring, contracted, retained, and collectible before applying a revenue multiple.
See: /insights/guide-saas-valuation and /insights/saas-revenue-recognition
ARR multiple (EV/ARR)
An ARR multiple is enterprise value divided by annual recurring revenue. It is one of the most common shorthand valuation metrics in SaaS M&A, but it only becomes meaningful when paired with growth, retention, margin quality, market position, and buyer demand. A clean process helps founders prove where in the multiple band the company belongs.
See: /insights/saas-multiples and /insights/saas-exit-multiples
Rule of 40
The Rule of 40 is a SaaS performance heuristic where revenue growth plus profit margin should equal or exceed 40%. Buyers use it to understand whether a company is balancing growth and efficiency. In 2026, the quality of that margin matters more than simply showing growth at any cost.
See: /insights/saas-rule-of-40
NRR (Net Revenue Retention)
NRR is the percentage of existing customer revenue retained after churn, contraction, expansion, and upsell. NRR above 100% means the existing customer base grows before adding new logos. In M&A, strong NRR signals product stickiness, expansion potential, and lower dependency on new sales to maintain growth.
See: /insights/nrr-saas and /insights/saas-customer-retention-strategies
GRR (Gross Revenue Retention)
GRR is the percentage of existing customer revenue retained before expansion or upsell. It isolates downside protection by showing how much revenue remains after churn and downgrades. Buyers care because high NRR can hide weak gross retention if expansion from a smaller set of accounts is masking customer loss.
See: /insights/nrr-saas and /insights/saas-customer-retention-strategies
Gross / logo churn
Gross churn measures recurring revenue lost from existing customers, while logo churn measures the number of customers lost. In a tech exit, buyers look at both because revenue churn shows economic leakage and logo churn reveals product-market or customer-fit issues that may not appear in top-line ARR.
Burn multiple
Burn multiple is the amount of capital burned to generate each dollar of net new ARR. It connects growth to capital efficiency. A lower burn multiple helps founders show that growth is not dependent on excessive spend, which matters when buyers are underwriting sustainability, not just historical expansion.
CAC payback
CAC payback is the time it takes to recover customer acquisition cost from gross profit generated by a customer. Shorter payback periods indicate efficient go-to-market motion and lower capital intensity. In M&A, buyers use it to judge whether growth can continue profitably after the transaction.
See: /insights/saas-customer-retention-strategies
Customer concentration
Customer concentration is the percentage of revenue tied to one customer or a small group of customers. High concentration can reduce valuation or increase structure risk because a single renewal, churn event, or pricing renegotiation can materially affect future revenue. Buyers will diligence contracts, renewal history, and account dependency closely.
See: /insights/customer-concentration-risk
AI M&A terms
AI defensibility / data moat
AI defensibility is the evidence that an AI product has durable advantages beyond access to a third-party model. A data moat can come from proprietary datasets, workflow embedding, feedback loops, distribution, or domain-specific outcomes. Buyers test whether the AI feature is a product advantage or a replicable interface layer.
See: /insights/ai-impact-saas-valuation and /insights/how-to-value-ai-wrappers
AI roll-up
An AI roll-up is an acquisition strategy that uses AI to modernize, automate, or consolidate a fragmented market. In tech M&A, buyers may acquire vertical software, services, or workflow businesses and use AI to expand margins, improve delivery, and build a platform. Founders need to understand whether they are being valued as a target, a platform, or a bolt-on.
See: /insights/ai-rollups and /insights/vertical-ai-saas
Model dependency (vendor risk)
Model dependency is the risk that a product relies too heavily on a third-party AI model, infrastructure provider, or platform roadmap. In an exit, buyers ask what happens if pricing changes, access is limited, model performance shifts, or the provider releases competing functionality. The more mission-critical the dependency, the more important mitigation becomes.
See: /insights/how-to-value-ai-wrappers and /insights/ai-agents-vs-saas
Cross-cutting deal terms
NDA
An NDA is a confidentiality agreement signed before sensitive company information is shared with buyers or investors. In a sell-side process, it protects financials, customer data, product information, and strategic plans. A strong NDA also defines permitted use, disclosure limits, return or destruction of materials, and sometimes employee or customer non-solicit provisions.
See: /insights/m-a-nda-saas-companies
CIM (Confidential Information Memorandum)
A CIM is the detailed marketing document used in a sell-side M&A process to present the company, market, financials, product, team, growth drivers, and investment thesis. For founders, the CIM is not a brochure. It is the first structured articulation of why the business deserves buyer attention and competitive tension.
See: /insights/sell-side-m-a-guide and /insights/mid-market-saas-m-a-playbook
IOI (Indication of Interest)
An IOI is a preliminary, non-binding expression of buyer interest, usually submitted before deeper diligence. It may include valuation range, structure, strategic rationale, and key assumptions. IOIs help a seller and advisor qualify buyers before narrowing the process and inviting more detailed diligence toward an LOI.
See: /insights/letter-intent-m-a
LOI (Letter of Intent)
An LOI is a document that outlines the proposed terms of an acquisition before the definitive agreement is negotiated. Even when mostly non-binding, an LOI sets price, structure, exclusivity, diligence scope, timing, and leverage. Founders should treat it as a major negotiation point, not an administrative step.
See: /insights/letter-intent-m-a
No-shop / exclusivity
A no-shop clause gives one buyer exclusive access to continue diligence and negotiate a deal for a defined period. It usually appears in the LOI. For founders, exclusivity can be dangerous if granted too early or too broadly because it reduces competitive leverage while the buyer confirms diligence and negotiates final terms.
See: /insights/letter-intent-m-a
Data room
A data room is a secure digital workspace where sellers share diligence materials with buyers. In tech M&A, it typically includes financials, contracts, product and technology materials, customer data, HR information, security documentation, and legal records. A well-prepared data room keeps momentum high and reduces surprises after LOI.
See: /insights/data-room-investors and /insights/saas-due-diligence-checklist
Definitive agreement (SPA)
A definitive agreement, often an SPA or merger agreement, is the binding contract that completes the acquisition. It converts the commercial terms into legal obligations, including purchase price, payment mechanics, reps and warranties, covenants, indemnification, closing conditions, and post-closing obligations. This is where headline value becomes enforceable economics.
See: /insights/m-a-deal-closing-process
Enterprise value (EV)
Enterprise value is the total value of a business before adjusting for cash, debt, debt-like items, and working capital. In SaaS M&A, EV is often the numerator in EV/ARR or EV/EBITDA multiples. Founders should distinguish enterprise value from equity value because the cash proceeds can differ materially.
See: /insights/guide-saas-valuation and /insights/saas-multiples
Cash at close
Cash at close is the portion of the purchase price paid to sellers when the transaction closes. It is the most certain form of consideration. Founders should compare cash at close against total headline value because earnouts, rollover equity, escrow, and holdbacks can materially change the risk and timing of the payout.
See: /insights/m-a-deal-structures-saas
Earnout
An earnout is a contingent payment tied to post-closing performance, milestones, or revenue targets. Buyers use earnouts to bridge valuation gaps or allocate future-performance risk. Founders should negotiate the metric, measurement period, operating control, information rights, acceleration triggers, and dispute process before accepting an attractive headline number.
See: /insights/earnouts-ma and /insights/how-to-negotiate-earnout-founder
Equity rollover
Equity rollover is the portion of sale proceeds a founder or seller reinvests into the buyer or new holding company instead of taking cash at closing. It is common in private equity-backed deals. Rollover can create a second bite at the apple, but it also exposes the seller to future execution, leverage, dilution, and exit timing risk.
See: /insights/m-a-deal-structures-saas and /insights/how-to-negotiate-earnout-founder
Escrow
Escrow is a portion of the purchase price held by a third party after closing to secure buyer claims, purchase price adjustments, or indemnity obligations. In founder exits, escrow affects liquidity and downside risk. The size, duration, release mechanics, claim thresholds, and interaction with RWI should be reviewed carefully.
See: /insights/m-a-deal-structures-saas
Holdback
A holdback is a portion of the purchase price withheld by the buyer and released later if specified conditions are satisfied. Unlike third-party escrow, a holdback may remain with the buyer. Sellers should understand whether the holdback secures indemnity, working capital, customer retention, transition services, or other post-closing obligations.
See: /insights/m-a-deal-structures-saas
Working capital adjustment
A working capital adjustment is a post-closing true-up that compares actual working capital at closing to an agreed target. In tech deals, the definition can affect proceeds if deferred revenue, receivables, accrued expenses, or prepaid items are treated differently than the founder expects. It is a financial detail with real economic impact.
See: /insights/m-a-deal-structures-saas
Asset deal vs stock deal
An asset deal transfers selected assets and liabilities, while a stock deal transfers ownership of the legal entity. The structure affects taxes, contracts, employee transfer, liability allocation, customer consent, and closing complexity. For SaaS founders, assignment restrictions in customer contracts and IP ownership can make structure a major diligence topic.
See: /insights/m-a-deal-structures-saas
EBITDA / Adjusted EBITDA
EBITDA is earnings before interest, taxes, depreciation, and amortization. Adjusted EBITDA normalizes EBITDA for agreed one-time, non-recurring, or owner-specific items. In tech M&A, buyers use adjusted EBITDA to assess sustainable profitability, but founders need clean support for every adjustment because diligence will rebuild the number from source data.
See: /insights/guide-saas-valuation
Strategic acquirer
A strategic acquirer is a corporate buyer that acquires a company to strengthen product, market, customer, talent, or technology position. Strategics may value synergies differently from financial buyers, but they still diligence revenue quality, integration risk, and strategic fit. The best strategic premium usually comes from a competitive process, not a single inbound conversation.
See: /insights/financial-vs-strategic-buyers
Financial sponsor (PE)
A financial sponsor is an investment firm, usually private equity, that acquires companies to generate returns through growth, margin expansion, leverage, multiple expansion, or future exit. PE buyers often focus on durability, cash generation, management depth, and acquisition potential. For founders, PE can mean recapitalization rather than a full exit.
See: /insights/financial-vs-strategic-buyers
Platform vs bolt-on (add-on)
A platform is the core company a buyer uses as a base for future acquisitions. A bolt-on, or add-on, is acquired to expand that platform through product, customer, geography, or capability. Platform assets usually command more strategic attention because they must support broader growth, integration, and future M&A.
See: /insights/ai-rollups and /insights/ma-trends-2026
Roll-up
A roll-up is a strategy of acquiring multiple smaller companies in a fragmented market and combining them into a larger platform. In tech and AI, roll-ups may target vertical software, service workflows, or data-rich operators. Founders should understand whether the buyer values them for standalone quality, consolidation potential, or integration synergies.
See: /insights/ai-rollups
Take-private
A take-private is the acquisition of a publicly traded company that removes it from public markets. In technology, take-privates often involve PE buyers, strategic repositioning, operational improvement, or carve-out opportunities. Even for private founders, take-private activity matters because it can reshape buyer appetite, comparable multiples, and strategic consolidation dynamics.
Synergies
Synergies are the financial or strategic benefits a buyer expects from combining two companies. They can include revenue expansion, cost savings, product integration, cross-sell, market access, or technology leverage. Sellers should understand which synergies are credible because buyer-specific value can support competitive tension and stronger valuation arguments.
Reps & warranties
Reps and warranties are factual statements and assurances a seller makes about the business in the definitive agreement. They typically cover authority, capitalization, financial statements, taxes, contracts, employees, IP, data privacy, litigation, and compliance. If a rep is untrue, the buyer may have a claim after closing.
RWI (Reps & Warranties Insurance)
RWI is insurance that covers certain losses from breaches of reps and warranties in an acquisition agreement. It can reduce seller indemnity exposure and lower escrow requirements, but it does not remove all risk. Policies usually include exclusions, retention amounts, diligence requirements, and separate treatment for known issues.
Indemnification (cap & basket)
Indemnification is the contractual mechanism that allocates responsibility for certain post-closing losses. A cap limits maximum liability, while a basket sets the loss threshold before claims can be made or paid. In a founder exit, these terms determine how much of the purchase price remains economically at risk after closing.
MAC clause (Material Adverse Change)
A MAC clause gives a buyer potential rights if a major adverse event affects the target between signing and closing. The drafting usually allocates broad market risk, industry risk, and company-specific risk. Founders should pay attention to exceptions and carve-backs because the clause can influence closing certainty and renegotiation leverage.
Drag-along rights
Drag-along rights allow specified majority holders to require minority holders to participate in a sale on the same terms. They help deliver a clean exit when a buyer wants 100% ownership. Founders should understand approval thresholds and whether drag rights can force a sale before every shareholder independently agrees.
Tag-along rights
Tag-along rights allow minority holders to participate in a sale by majority holders on the same terms. They protect minority investors from being left behind when control shareholders sell. In exit planning, tag rights affect cap table logistics, buyer certainty, and how proceeds are shared across shareholder groups.
How tech sellers get paid
In tech M&A, the headline purchase price is only part of the economics. Founders should compare when consideration is paid, who controls the outcome, and how much of the value remains at risk after signing or closing.
What this means for founders
Knowing the language does not replace a process. It helps founders ask better questions, compare offers more accurately, and recognize when a buyer is shifting value from price to structure. If you are preparing for a strategic exit, L40° helps mid-market technology founders run structured, competitive sell-side processes designed to protect leverage from preparation through closing. Learn more about L40° sell-side advisory.
Recommended
- Sell-Side M&A: An In-Depth Guide for Tech & SaaS Founders
- M&A Deal Structures for SaaS
- Earnouts in M&A: What Founders Need to Know
- How to Sell a Mid-Market SaaS Company in 2026
Ready to understand how these terms affect your actual exit options? Talk to L40° about your sell-side process.
