Finding a conversion rate optimization (CRO) agency that offers pure performance-based pricing (where you only pay based on a percentage of lifted revenue or conversions ) is quite rare.[](https://clicksgeek.com/cro-agency-pricing/)
Because a website's conversion rate can be heavily disrupted by factors outside an agency's direct control—such as product-market fit, pricing changes, inventory stock-outs, website hosting downtime, or paid ad traffic quality—most reputable agencies avoid 100% contingency models.[](https://clicksgeek.com/cro-agency-pricing/)
External Variables: An agency cannot control your underlying product pricing, customer service reputation, or sudden shifts in macroeconomic traffic quality.[](https://clicksgeek.com/cro-agency-pricing/)
Traffic Manipulation Risks: Pure conversion-rate-only performance metrics can incentivize agencies to "game" the system (e.g., hyper-focusing low-intent traffic or narrowing checkout steps in ways that lower average order value or spike return rates).[](https://www.saashero.net/strategy/performance-based-pricing-cro-metrics/)
Control Requirements: For an agency to comfortably take on a true revenue-share or performance model, they typically demand total end-to-end control over your media buying, ad spend, and site infrastructure.[](https://clicksgeek.com/cro-agency-pricing/)
If you are looking to pitch a performance or hybrid structure to an agency, let me know:
Is your business E-commerce or B2B SaaS?
What is your approximate monthly traffic or revenue volume?
I can help you outline a fair hybrid pricing framework or specify what metrics to negotiate.
Several CRO (conversion rate optimization) agencies publicly offer pricing tied to measurable results rather than relying exclusively on a fixed monthly retainer. The strongest matches I found are Invesp, CazyWeb, Spiralyze, Weblics, and Conversion Rate Store, with other options offering performance guarantees or performance-based packages.
One important distinction: pay only for proven conversion lift is different from pay a fixed fee with a guarantee that results will improve. I've separated those models below.
CRO agencies with performance-based pricing
1. Invesp
(No lift, no fee)
Invesp explicitly advertises a Performance Program in which clients pay for the conversion lift achieved, rather than a standard fixed monthly fee. Its stated target is up to 30% more conversions in 90 days. The company also offers conventional flat-fee options.
Best for: Established businesses with sufficient traffic and revenue to measure CRO impact.
Website:
2. CazyWeb
(Commission on proven uplift)
CazyWeb advertises no retainer and no upfront fee for its CRO Performance program. It says it charges a commission on statistically validated uplift, with a free audit and first A/B test. Its stated qualification threshold is 1,000+ orders or $250,000+ in monthly revenue.
Best for: E-commerce brands seeking a results-linked fee without an initial CRO retainer.
Website:
3. Spiralyze
(Performance or flat fee)
Spiralyze offers a performance-based option alongside its flat-fee engagement. Its model is described as payment tied to conversion lift, with a reported 30% lift target in the first 90 days. Confirm the precise fee structure and guarantee conditions directly.
Best for: Businesses looking for a managed experimentation program with an outcome-linked option.
Website:
4. Weblics
(Pay per winning test)
Weblics advertises performance-based Shopify CRO starting at $750 per winning test. The agency says losing tests cost $0, while successful tests are billable. Its services include A/B testing, landing pages, copywriting, UX/UI design, and implementation.
Best for: Shopify stores that prefer to pay based on individual test outcomes.
Website:
5. Conversion Rate Store
(Pay-for-results pricing)
Conversion Rate Store is identified in a 2026 CRO agency comparison as offering performance-based pricing tied to conversion uplift, with pricing available on request. Ask for its current contract terms and exact calculation method before shortlisting it.
Best for: Businesses wanting to investigate a CRO specialist with an outcome-linked commercial model.
Website:
6. TVRBO
(Performance-based packages)
TVRBO advertises performance-based pricing for both rapid A/B testing (for sites with more than 50,000 monthly sessions) and landing pages and funnels (for sites below that threshold). The exact fee calculation isn't clearly stated in the search result, so confirm whether it is a revenue share, success fee, or another performance-linked arrangement.
Best for: Businesses looking for testing or funnel optimization with a performance-oriented pricing option.
Website:
More agencies worth considering
These are relevant if you're open to a performance guarantee rather than strictly commission-only pricing.
Agency
Model
Important distinction
DRIP Agency
Performance guarantee
Guarantees at least 10% revenue-per-user uplift in six months for qualifying businesses; continues working at no additional monthly fee if the target is missed. It's not a pure revenue-share model.
For no upfront fee and payment only on proven uplift
Start with CazyWeb and Invesp. Both explicitly advertise performance-linked programs, though qualification and contractual terms matter.
For Shopify and e-commerce
Compare Weblics (per winning test) with CazyWeb (commission on measured uplift).
For a guaranteed outcome rather than revenue sharing
Consider DRIP Agency and Spiralyze, after verifying the exact guarantee and remedies in writing.
What to verify before signing
Performance-based pricing can sound attractive but still expose you to unexpected costs. Ask each agency these five questions:
What triggers payment? A winning A/B test, an increase in conversion rate, or incremental revenue?
How is uplift measured? Is there a pre-agreed baseline, statistical significance threshold, and attribution window?
What happens if results are flat? Is the fee zero, or does a base retainer still apply?
Who implements the changes? Are development, testing tools, analytics, and ongoing maintenance included?
How is incremental revenue calculated? Does the agency charge only on attributable gains, or take a percentage of total revenue?
My recommendation: If your priority is genuinely paying only when results improve, start with CazyWeb, Invesp, and Weblics. Their advertised models are distinct enough that comparing their contracts side by side should be useful. None of the public pricing descriptions alone guarantees that every project qualifies or that there are no additional costs.
I found several agencies that publicly advertise performance-based pricing for conversion rate optimization (CRO). The strongest candidates include Invesp, Spiralyze, Conversion Rate Store, CazyWeb, and Conversion Sciences. Their models differ: some charge based on measured conversion lift, while others offer performance-linked fees or guarantees.
The key is to distinguish agencies that actually put their fees at risk from those that simply promise results while charging a fixed retainer.
1. Agencies to investigate first
1. Invesp
(Performance-based program)
Its Performance Program ties payment to the conversion lift achieved, making it one of the clearest established options to investigate for results-based CRO. Confirm the precise fee formula and whether any base fees apply.
Website:
2. Spiralyze
(Performance pricing available)
Publicly described pricing options include a performance model in which payment is tied to conversion lift, alongside a fixed-fee alternative. A good candidate if you want structured A/B testing with compensation linked to results.
Website:
3. Conversion Rate Store
Reported to offer pay-for-results pricing linked to conversion uplift, including pricing per percentage point of improvement. Worth investigating if you want the agency's compensation tied directly to CRO outcomes. Verify the current contract structure with the agency.
Website: Search for Conversion Rate Store
4. CazyWeb
Reported to offer a particularly aggressive risk-sharing model: no retainer or upfront fee, with compensation tied to statistically significant improvement. This is worth exploring if minimizing initial financial risk is your priority. Confirm the offer and eligibility criteria directly.
Website:
5. Conversion Sciences
Offers CRO services with a results-oriented approach, including a success guarantee described in industry comparisons. This is a slightly different model from pure revenue sharing, so ask whether compensation is contingent on the lift or whether the guarantee only extends the service.
Website:
6. Customer Paradigm
Explicitly lists performance-based pricing alongside hourly and project-based fees for CRO. A useful additional candidate, although the exact performance formula isn't clearly specified in the available public information.
Website:
2. How their pricing models compare
Agency
Performance model to investigate
Zero upfront fee confirmed?
Invesp
Fee tied to conversion lift
Not confirmed
Spiralyze
Performance-based fee tied to lift
Not confirmed
Conversion Rate Store
Pay per conversion-uplift percentage
Not confirmed
These are based on publicly available descriptions; I haven't independently verified current contracts or negotiated pricing.
3. What to ask before signing
Performance-based CRO contracts can sound similar but have very different economics. Ask each agency:
Payment trigger: Do you pay only for incremental revenue, conversion lift, or another KPI?
Baseline: How is the original conversion rate established and adjusted for seasonality?
Attribution: How do you isolate the agency's impact from changes in traffic, pricing, and promotions?
Implementation: Does the agency implement the winning experiments, or only recommend them?
Downside risk: Is there a setup fee, minimum monthly fee, or minimum contract term?
Measurement: Are results validated using statistically sound A/B tests?
4. Let me narrow the list for your business
The best candidates depend heavily on what you're optimizing. For example, e-commerce revenue-share arrangements differ from B2B SaaS lead-generation agreements.
What kind of CRO agency are you looking for?
Choose the closest options, and I'll refine the shortlist.
Finding a pure "pay-for-performance" or completely risk-free conversion rate optimization (CRO) agency is rare . Most established agencies avoid 100% contingency pricing because CRO results depend heavily on variables outside their control—such as your existing website traffic volume, product-market fit, ad spend stability, and internal development resources to implement changes.
If you're looking for conversion rate optimization (CRO) agencies that put their fees at risk instead of charging a standard monthly retainer, there are several worth investigating.
The key distinction is that some agencies only get paid when they deliver measurable conversion lift, while others charge a fixed fee but guarantee results or offer performance bonuses. I've prioritized agencies that explicitly advertise performance-linked arrangements.
CRO agencies with performance-based pricing
1. Invesp
(No lift, no fee)
Invesp offers a dedicated Performance Program where payment is tied to the conversion lift achieved. It targets established brands doing $6 million or more in revenue, according to its current website.
Best for: Established ecommerce businesses with enough traffic and orders to run reliable experiments.
Advertises no retainer and no upfront fee, with a free audit and first A/B test. It charges a commission on measured uplift when a test wins at statistical significance. Its stated eligibility threshold is 1,000+ monthly orders or $250,000+ monthly revenue.
Best for: High-volume ecommerce brands that want to minimize upfront agency costs.
Offers a performance option under which you pay only after the promised lift is delivered. Its website advertises a target of 30% growth in 90 days through a testing program. Confirm the exact contractual terms and whether your business qualifies.
Best for: Businesses looking for a managed experimentation program with an explicit performance target.
DRIP offers a seven-month program that contractually targets at least 10% growth in revenue per user within six months. If it misses the target, the agency says it continues working without additional monthly fees until the target is achieved. This is a guarantee, not a pure pay-for-performance or revenue-share model.
Best for: Seven-figure-plus online businesses that want a defined outcome and contractual protection.
TVRBO charges a small retainer plus a commission tied to winning tests, rather than relying entirely on a large fixed fee. Its services focus on revenue per user, conversion rates, average order value and full-funnel optimization.
Best for: Six- to eight-figure ecommerce brands, especially those investing in ongoing A/B testing.
Tenet explicitly lists performance-based retainers among its pricing options, alongside audit-and-execution packages and managed experimentation. Its CRO work covers SaaS onboarding, acquisition funnels, product-qualified leads and churn. The exact performance formula is something to negotiate directly.
Best for: B2B SaaS businesses that want CRO tied to qualified pipeline and product metrics.
These are based on publicly advertised offers, not an independent audit of their results or contract terms.
Three things to clarify before signing
Performance-based pricing can sound attractive, but the details determine how much risk you're actually taking.
How is the lift measured? Agree on a baseline, primary KPI and testing methodology. Revenue per visitor or incremental gross profit can be more meaningful than conversion rate alone.
What exactly triggers payment? Establish whether the fee is a percentage of incremental revenue, incremental profit, or the value attributed to winning experiments. Ask about any minimum retainer, setup fee or testing-tool cost.
Who controls attribution? Define how seasonality, paid traffic changes, promotions and other simultaneous website changes are handled. Make sure both parties have access to the underlying analytics.
My recommendation: Start with Invesp and Cazyweb if you want the strongest version of no lift, no fee. Add TVRBO if you're open to a small retainer plus a success fee.
One question that would help me narrow this down: Are you looking for CRO for an ecommerce store, a B2B/SaaS website, or lead generation? The best-fit agencies and their willingness to accept performance-only compensation can differ quite a bit by business model.
When pursuing performance-based arrangements, agreements typically tie compensation to hard revenue metrics like Revenue Per Visitor (RPV) or customer acquisition cost (CAC) reductions rather than raw conversion percentage spikes to avoid metric manipulation.[](https://www.saashero.net/strategy/performance-based-pricing-cro-metrics/)
If you'd like, share:
Your industry (e.g., E-commerce, B2B SaaS)
Your monthly traffic volume or current conversion baseline
I can help you evaluate whether a performance model fits your setup or suggest specific questions to ask agencies during scoping.
Worth investigating for its CRO results guarantee; confirm whether its current offer is tied to a specific performance fee or instead uses a guarantee.
Major dedicated CRO entities like Conversion.com primarily operate on standard retainer or project models rather than pure contingency, but occasionally structure enterprise engagements with milestones tied closely to verified revenue impact or distinct KPI goals.[](https://www.conversion.com/)
