Services Backlinks Ad placements PublishersStart selling

All services SEO and Organic Search211 Social Media Advertising95 Search Advertising (PPC / SEM)85 Ad Creative Production68 Mobile App Marketing62 PR, Community and Earned Media56 Programmatic and Display52 Retail Media and Marketplace Ads52 Influencer and Creator Marketing48 Email, SMS and Lifecycle48 Analytics, Tracking and Attribution48 Publisher Monetization and Ad Ops46 Affiliate and Performance Marketing44 Emerging and Niche Channels44 AI Search Optimization (GEO / AEO)39 Video, CTV and Streaming38 Strategy, Consulting and Training38 CRO and Experimentation32 Native and Content Advertising30 Push, Pop and Alternative Traffic30 Marketing Automation, CRM and RevOps30 Landing Pages and Web28 Audio Advertising24 Ad Compliance and Legal24

LinkBourse

Advertising services and ad inventory in one marketplace. Money sits in escrow and moves when delivery is measured, not when someone says the work is done.

For buyers

Browse services
Browse ad placements
Post a brief
What advertising costs
What your budget buys
Advertising glossary
Compare channels
Quarterly reports

For sellers

Publish a service
List a placement
Create an account
Your listings

How it works

Delivery-verified escrow
Publisher verification
Fees
Advertising policies
Data processing
Platform status

All categories

Search Advertising (PPC / SEM)
Social Media Advertising
Programmatic and Display
Video, CTV and Streaming
Native and Content Advertising
Retail Media and Marketplace Ads
Mobile App Marketing
Affiliate and Performance Marketing
Influencer and Creator Marketing
Email, SMS and Lifecycle
Push, Pop and Alternative Traffic
Audio Advertising
SEO and Organic Search
AI Search Optimization (GEO / AEO)
Ad Creative Production
Landing Pages and Web
Analytics, Tracking and Attribution
CRO and Experimentation
Marketing Automation, CRM and RevOps
Publisher Monetization and Ad Ops
PR, Community and Earned Media
Emerging and Niche Channels
Strategy, Consulting and Training
Ad Compliance and Legal

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A/B Testing, sold worldwide — LinkBourse

Home
Services
CRO and Experimentation
A/B Testing
Worldwide

A/B Testing, sold worldwide

14 services from 4 practices in 4 countries, median engagement $22,000, median delivery 30 days. Escrow releases against delivery this marketplace measured itself, so a shortfall refunds pro rata rather than becoming a dispute.

Practices working here

Nuria Iglesias5
Davide Ferretti4
Nightingale Analytics4
Margaux Delacroix1

Filters

Target market

Worldwide13
Spain5
Netherlands4
Italy3
DACH1
France1

Working language

English13
Spanish5
Dutch4
Italian3
French1

Industry

Ecommerce and DTC10
B2B SaaS9
Marketplaces6
Developer tools5
iGaming5
Gaming

Engagement model

One-off project8
Monthly retainer3
Audit only1
Team augmentation1

Turnaround

1 month or more8
2 weeks4
1 week1

Seller type

In-house-grade specialist8
Fractional executive5

One-off project8 Monthly retainer3 Audit only1 Team augmentation1

13 services · 4 practices

Best match Price: low to high Price: high to low Fastest delivery

5

Kids and family2

Crypto and Web31

Ad-level creative testing framework

New

NINuria IglesiasNew seller

Ad Creative Testing With an Incrementality Backstop

No reviews yetFrom€8,000

Multivariate test design

NANightingale AnalyticsNew seller

Multivariate test design, powered for the interaction

No reviews yetFrom€7,500

Statistical analysis and readout

NINuria IglesiasNew seller

Experiment Readouts That Survive a Finance Review

No reviews yetFrom€5,500

A/B test program setup and governance

DFDavide FerrettiNew seller

Experiment Program Setup and Decision Governance

No reviews yetFrom€8,500

Personalization rules build

NANightingale AnalyticsNew seller

Personalisation rules built behind a permanent holdout

No reviews yetFrom€7,000

Ad-level creative testing framework

NANightingale AnalyticsNew seller

Creative testing framework for paid social and search

No reviews yetFrom€8,000

A/B test program setup and governance

MDMargaux DelacroixNew seller

A/B Test Program Setup and Decision Governance

No reviews yetFrom€9,000

Multivariate test design

NINuria IglesiasNew seller

Multivariate Test Design, Or the Case Against One

No reviews yetFrom€6,000

Server-side experimentation build

DFDavide FerrettiNew seller

Server-Side and Edge Experiment Infrastructure

No reviews yetFrom€9,000

Test tool implementation (VWO, Optimizely, GrowthBook, Statsig)

NINuria IglesiasNew seller

Experimentation Tooling Installed to Survive an Audit

No reviews yetFrom€7,000

Statistical analysis and readout

NANightingale AnalyticsNew seller

Independent statistical readout of concluded experiments

No reviews yetFrom€6,500

Test tool implementation (VWO, Optimizely, GrowthBook, Statsig)

DFDavide FerrettiNew seller

VWO, Optimizely, GrowthBook and Statsig Implementation

No reviews yetFrom€6,000

Server-side experimentation build

NINuria IglesiasNew seller

Server-Side Experiment Assignment Built Into Your Stack

No reviews yetFrom€9,000