Invesp review
Shortlist-ready for CRO / Web Conversion, with the caveats below.
Authoritative CRO agency (co-founders wrote the book; 'SHIP' framework) with a rare 'no lift, no fee' model, they don't get paid until conversions rise. 100% positive reviews. Premium ($7k+/mo).
Pricing: $7,000 per month Published by the agency
Invesp uses a 'no lift, no fee' model and starts around $7,000/mo. source ↗
How it scored
Every dimension is scored against this discipline’s published rubric. Open one to see the claim it was scored on, what the rubric measures there and how much it weighs, and where the evidence came from.
How we scored this
We read the agency’s public record first-hand — its site, pricing, case studies and independent reviews — and score what is checkable: what is published, not how it is phrased. There is no keyword counting or sentiment scoring. The label is a judgment on those facts, which is why each dimension shows the fact that decided it, the band it was judged against, and the sources — so you can check the call, and tell us if you think it is wrong. The full method, and who pays, is on how we vet.
Experimentation rigor (valid A/B testing)Excellent
Excellent — 5 of 5 on this rubric’s scale, from Poor (1) to Excellent (5). This dimension carries 25% of the total score.
Benchmark — across the 25 other agencies evaluated in this discipline, this dimension runs Excellent 16 · Strong 7 · Weak 1 · Poor 1. The typical agency here scores Excellent, and none scores higher than this one.
What this dimension measures: Runs statistically-valid experiments: proper sample sizes/power, avoids peeking, sequential/Bayesian methods, honest win-rate reporting.
Scores high — Named testing methodology and honesty about losers/flat tests score 4-5.
Scores low — 'We A/B test button colors' or claims of 90%+ win rates score 1-2 (a red flag).
What we found — 'SHIP' framework; rigorous hypothesis-driven testing. That is the high band above, which is why it scored Excellent.
Evidence: verified — checked against a named source you can open; the links under Sources below are where to check it yourself.
Conversion research & UXStrong
Strong — 4 of 5 on this rubric’s scale, from Poor (1) to Excellent (5). This dimension carries 18% of the total score.
Benchmark — across the 25 other agencies evaluated in this discipline, this dimension runs Excellent 13 · Strong 10 · Adequate 1 · Weak 1. The typical agency here scores Excellent, and 13 of them score higher than this one.
What this dimension measures: Grounds tests in real research: heuristic analysis, analytics, session replay, surveys, user testing, not guesses.
Scores high — Research-led hypotheses score 4-5.
Scores low — Best-practice checklists with no research score 1-2.
What we found — Research-led scrutiny before hypotheses. That is the high band above, which is why it scored Strong.
Evidence: inferred — our reading of indirect evidence, not a documented fact.
Landing page / site design & devStrong
Strong — 4 of 5 on this rubric’s scale, from Poor (1) to Excellent (5). This dimension carries 15% of the total score.
Benchmark — across the 25 other agencies evaluated in this discipline, this dimension runs Excellent 6 · Strong 17 · Adequate 2. The typical agency here scores Strong, and 6 of them score higher than this one.
What this dimension measures: Can design AND build high-converting pages/sites fast (not just recommend).
Scores high — In-house design + dev score 4-5.
Scores low — Recommendations handed back to the client's team score 2-3.
What we found — Implements changes, not just recommendations. That is the high band above, which is why it scored Strong.
Evidence: inferred — our reading of indirect evidence, not a documented fact.
Analytics & attributionStrong
Strong — 4 of 5 on this rubric’s scale, from Poor (1) to Excellent (5). This dimension carries 15% of the total score.
Benchmark — across the 25 other agencies evaluated in this discipline, this dimension runs Excellent 7 · Strong 14 · Adequate 4. The typical agency here scores Strong, and 7 of them score higher than this one.
What this dimension measures: Sound measurement: clean analytics implementation, event tracking, attribution, and guarding against false positives.
Scores high — Strong analytics score 4-5.
Scores low — Reliance on platform vanity dashboards scores 2.
What we found — Sound measurement underpins the framework. That is the high band above, which is why it scored Strong.
attribution — working out which marketing touch actually caused a sale. Good practice names its model and its blind spots; bad practice quotes each ad platform’s self-graded numbers, which overlap and overclaim.
Evidence: inferred — our reading of indirect evidence, not a documented fact.
Measurement tied to revenue liftExcellent
Excellent — 5 of 5 on this rubric’s scale, from Poor (1) to Excellent (5). This dimension carries 12% of the total score.
Benchmark — across the 25 other agencies evaluated in this discipline, this dimension runs Excellent 13 · Strong 10 · Adequate 2. The typical agency here scores Excellent, and none scores higher than this one.
What this dimension measures: Reports revenue-per-visitor / incremental revenue lift, not just conversion-rate deltas on micro-conversions.
Scores low — Revenue-lift focus scores 4-5; micro-conversion vanity scores 1-2.
What we found — 'No lift, no fee', paid only when conversions rise.
Evidence: verified — checked against a named source you can open; the links under Sources below are where to check it yourself.
Platform depth (Shopify/Webflow/Next)Adequate
Adequate — 3 of 5 on this rubric’s scale, from Poor (1) to Excellent (5). This dimension carries 8% of the total score.
Benchmark — across the 25 other agencies evaluated in this discipline, this dimension runs Excellent 7 · Strong 9 · Adequate 9. The typical agency here scores Strong, and 16 of them score higher than this one.
What this dimension measures: Deep in the buyer's actual stack (Shopify for ecom, Webflow/Next for B2B/SaaS).
Scores low — Match scores 4-5; mismatch/generalist scores 2-3.
What we found — Platform-agnostic CRO.
B2B — business-to-business: selling to companies rather than consumers — longer deals, more decision-makers.
SaaS — software as a service: subscription software; as a client type it brings recurring revenue and metrics like churn and lifetime value.
CRO — conversion-rate optimization: raising the share of visitors who buy or sign up through structured testing, not redesign by taste.
Evidence: inferred — our reading of indirect evidence, not a documented fact.
Vertical & stage fitStrong
Strong — 4 of 5 on this rubric’s scale, from Poor (1) to Excellent (5). This dimension carries 4% of the total score.
Benchmark — across the 25 other agencies evaluated in this discipline, this dimension runs Excellent 11 · Strong 14. The typical agency here scores Strong, and 11 of them score higher than this one.
What this dimension measures: Ecommerce CRO vs B2B SaaS/lead-gen CRO are different crafts.
Scores low — Named clients matching the buyer score 5; mismatch scores 1-2.
What we found — Cross-vertical CRO with strong reviews.
CRO — conversion-rate optimization: raising the share of visitors who buy or sign up through structured testing, not redesign by taste.
B2B — business-to-business: selling to companies rather than consumers — longer deals, more decision-makers.
SaaS — software as a service: subscription software; as a client type it brings recurring revenue and metrics like churn and lifetime value.
Evidence: inferred — our reading of indirect evidence, not a documented fact.
Contract & pricing transparencyStrong
Strong — 4 of 5 on this rubric’s scale, from Poor (1) to Excellent (5). This dimension carries 3% of the total score.
Benchmark — across the 25 other agencies evaluated in this discipline, this dimension runs Excellent 2 · Strong 3 · Adequate 8 · Weak 9 · Poor 3. The typical agency here scores Adequate, and 2 of them score higher than this one.
Scores high — Month-to-month or short terms with a pricing anchor score 4-5.
Scores low — 12-month lock-ins or bespoke-only score 2.
What we found — Performance-aligned pricing; from ~$7k/mo. That is the high band above, which is why it scored Strong.
Evidence: verified — checked against a named source you can open; the links under Sources below are where to check it yourself.
Verdict
Invesp is a highly-credentialed CRO agency, its co-founders literally wrote the book on conversion optimization and created the 'SHIP' framework (Scrutinize, Hypothesize, Implement, Propagate), with overwhelmingly positive reviews (100% reporting conversion improvements) and praise for meticulous project management and fast responsiveness. Its standout is commercial: a 'no lift, no fee' model where it isn't paid until conversions go up, the strongest possible alignment with the rubric's revenue-lift standard. Pricing starts ~$7k/mo (category-typical $8-15k).
The only mild 'complaint' surfaced was clients slowing their own process by reworking designs. A top pick for buyers who want accountable, framework-driven CRO.
What you can do next
Koolav can make the introduction and handle the back-and-forth, or you can go straight to the agency.
This agency has not published a paid trial. What a paid trial is.
What we verified
Each claim below was checked against a named source, last on 2026-07-19. Follow any of them and check for yourself — that is the point of publishing them.
- Invesp's co-founders wrote the book on CRO and created the 'SHIP' framework; reviews are overwhelmingly positive. g2.com ↗
- Invesp uses a 'no lift, no fee' model and starts around $7,000/mo. invespcro.com ↗
What other platforms say
Framework-driven, accountable CRO with no-lift-no-fee alignment and strong reviews; premium pricing.
These are other platforms' numbers, not ours. We report them because they are part of the picture, and we do not average them into our score — our score comes from the published rubric above.
Red flags
- Premium pricing ($7k+/mo)
What we could not verify
- Exact terms of the no-lift guarantee
Sources
- https://www.invespcro.com
- https://www.g2.com/products/invesp-invesp/reviews
- https://themarketingagency.ca/blog/top-conversion-rate-optimization-agencies/
Others we evaluated in CRO / Web Conversion
Same rubric, same evaluator, same date range — so these are directly comparable to the verdict above.
See all 26 CRO / Web Conversion agencies we evaluated →
Think this is wrong?
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Evidence moves a verdict. Money never does — no agency pays us for a listing, a placement, or a re-review. Whatever we conclude we publish, including that the verdict stands.