Table of contents
How we vet every listicle
Every agency featured on Web Tonic passes our 84-point editorial review before a single listicle goes live. This is how we vet each pick:
Verified client outcomes: We require real case studies with measurable KPIs — revenue, ROAS, CPA, retention — tied to the exact category being ranked. No cherry-picked wins, no unverifiable numbers.
Independent reputation: We cross-check Clutch, Google, G2, and Trustpilot ratings, and screen for review-bombing or suspicious patterns. Only operators with a consistent, verifiable track record make the cut.
Beyond that, every listing goes through a quarterly re-audit. We check 84 criteria across 6 pillars to make sure it still holds up — here are some of the checks we run:
A conversion rate optimization agency works on traffic you already pay for: it instruments the site, reads where visitors abandon, turns each guess into a written hypothesis, then proves or kills it with a controlled A/B or multivariate test before the winning version is built for good.
Our screen was deliberately narrow: twelve external firms serving New York survived it, judged on testing and analytics work shown on their own sites rather than a CRO line in a services menu. Most of the bench sells CRO beside SEO and paid media, and the page says which is the core craft.
What does a New York conversion rate optimization agency actually deliver?
Research, instrumentation, written hypotheses and tested changes to the pages your traffic already lands on. Twelve external firms working in New York cleared our evidence read; ten publish a New York address, five credit a client you can check, and none prints a rate.
1. Web Tonic
About: Web Tonic runs testing inside the growth program rather than as a side project, so the measurement work, the paid traffic that fills the page and the build that ships a winning variant are briefed together. Briefs from New York usually arrive with plenty of sessions and no test history, so the first session is spent on what that traffic can actually prove
Key Services: Growth Marketing, Paid Social, PPC, Meta Ads, SEO, Google Ads, Snapchat Ads, Amazon Ads, Reddit Ads, TikTok Ads, TikTok Shop, GEO-AEO, Webflow Design, Shopify Design, WordPress Design, UGC, Social Media Management, Pay Per Click Management, Marketing Analytics, Analytics Implementation & CDPs, Performance Branding, Performance 360° Audit, Programmatic Ads, OOH Ads, HR Marketing
Industries Served: eCommerce, SaaS, B2B, Construction Professionals, Home Services, SMEs, Health Spa & Wellness, Retail, Legal & Judicial Services, Food & Beverages, Pets, Fitness, Family & Children, Finance & Insurance, Travel, Non-Profits & Organizations, Furniture & Decoration
Notable Clients: WorldRemit, Jack & Jones, Ardene, L’Oréal, Sendwave, Nestlé, Airbnb. Serve Fortune 500 companies and smaller fast-paced startups.
Locations: HQ in San Francisco with notable offices in New York, Chicago, Miami, Toronto, Montreal, Dubai, Singapore, Sydney and more. Offices on five continents.
Pricing: Starting at USD $3,000 per month. Flexible and scalable plans at any time according to your enterprise needs. Book a call to learn more.
Great For: Mid-market to enterprise-level businesses requiring ongoing, on-tap growth and performance marketing services.
Website: Web Tonic
2. MacroHype
About: MacroHype is a digital marketing agency headquartered in New York that offers conversion rate optimization (CRO) services utilizing user research, website analytics, and A/B testing to improve user experience and website performance. Their team leverages data-driven insights and proprietary technology tools to help businesses scale lead generation and online revenue.
Key Services: Conversion Rate Optimization (CRO), A/B Testing, Search Engine Optimization (SEO), Pay-Per-Click (PPC) Management, Web Design and Development, Social Media Management
Industries Served: E-commerce, Real Estate, Healthcare, Finance, Technology
Notable Clients: Universal Relocations, Second Start Financial, Perimtec, Bridge Financial
Locations: New York, New York
Pricing: Quote-based
Great For: E-commerce brands, Real Estate brands, Healthcare brands
Website: MacroHype
3. BusySeed
About: BusySeed is a revenue growth and digital marketing agency headquartered in New York City. They provide comprehensive conversion rate optimization (CRO) services, including A/B testing, funnel and UX audits, landing page testing, and checkout optimization to systematically lift revenue from existing traffic.
Key Services: Conversion Rate Optimization (CRO), A/B & Multivariate Testing, Funnel & UX Audit, Landing Page CRO, Checkout & Form Optimization, Lead Capture & Experimentation, Search Engine Optimization (SEO), Generative Engine Optimization (GEO), Paid Advertising (PPC), B2B Lead Generation
Industries Served: SaaS, Financial Services, Home Services, Legal, E-Commerce, Automotive, Hospitality, Healthcare
Notable Clients: Cielo Global Holdings
Locations: New York, New York
Pricing: Quote-based
Great For: SaaS brands, Financial Services brands, Home Services brands
Website: BusySeed
4. NinjaPromo
About: NinjaPromo is a full-service digital marketing agency offering a subscription-based model with cross-functional dedicated marketing teams. Their services include conversion rate optimization, landing page and funnel optimization, and A/B testing frameworks to help brands maximize traffic value.
Key Services: Conversion Rate Optimization (CRO), A/B Testing Framework, Landing Page Optimization, Funnel Analysis, UX/UI Recommendations, Signup Flow Optimization
Industries Served: B2B, SaaS, Crypto, Fintech, E-commerce, iGaming, AI
Notable Clients: No client publicly named on the firm's own site
Locations: London, United Kingdom
Pricing: Quote-based
Great For: B2B brands, SaaS brands, Crypto brands
Website: NinjaPromo
5. Chatter Buzz
About: Chatter Buzz is a full-service digital marketing and advertising agency that emphasizes data-driven growth strategies, integrated media, and in-house creative execution. Their service offerings include dedicated conversion rate optimization and rigorous testing protocols designed to improve page performance and drive user actions.
Key Services: Conversion Rate Optimization, Fractional CMO Services, Integrated Marketing Services, SEO + AEO + GEO, Custom Web Development, Paid Search Advertising, Social Media Advertising, Local Geofencing Advertising
Industries Served: Financial Services, Credit Unions & Banks, Home Builders, Manufacturing & Industrial, Healthcare, Technology & SAAS, Government, Tourism & CVBs
Notable Clients: No client publicly named on the firm's own site
Locations: Orlando, Florida
Pricing: Quote-based
Great For: Financial Services brands, Credit Unions & Banks brands, Home Builders brands
Website: Chatter Buzz
6. DiscoverMyBusiness Digital Marketing Agency
About: DiscoverMyBusiness is a digital marketing and lead generation agency headquartered at 261 Madison Avenue in New York City. The agency provides comprehensive digital marketing and web services, explicitly noting that conversion rate optimization typically shows measurable lift within 60 to 90 days after testing begins.
Key Services: Digital Marketing, Pay Per Click Advertising, Search Engine Optimization, Website Development, Conversion Rate Optimization
Industries Served: Healthcare, Home Services, Real Estate, Travel Agencies
Notable Clients: PowerPak, Anchor Health Home Care
Locations: New York, New York
Pricing: Quote-based
Great For: Healthcare brands, Home Services brands, Real Estate brands
Website: DiscoverMyBusiness Digital Marketing Agency
7. Leadige Media Group
About: Leadige Media Group is a full-service digital marketing agency offering customized growth solutions including search engine optimization, paid advertising, web development, and email campaign optimization. They position their work around driving performance through technical infrastructure, targeted acquisition, and conversion-focused design.
Key Services: Search Engine Optimization, Paid Ads and PPC Management, B2B Marketing, Design Services, Website Design & Development, Email Marketing & A/B Testing
Industries Served: B2B, Automotive, Legal, E-commerce, Web3, VFX
Notable Clients: No client publicly named on the firm's own site
Locations: New York, New York
Pricing: Quote-based
Great For: B2B brands, Automotive brands, Legal brands
Website: Leadige Media Group
8. Digital Drew SEM
About: Digital Drew SEM is a boutique digital marketing agency based in New York City specializing in performance marketing, Google Ads, SEO, and conversion optimization. The agency emphasizes hands-on campaign execution, A/B testing, and data-driven growth strategies managed by senior specialists.
Key Services: Google Ads / PPC, Meta & Social Ads, SEO, AI Search & GEO, Email Marketing, Web Development, A/B Testing
Industries Served: E-commerce, B2B Lead Generation, Local Service, SaaS
Notable Clients: No client publicly named on the firm's own site
Locations: New York
Pricing: Quote-based
Great For: E-commerce brands, B2B Lead Generation brands, Local Service brands
Website: Digital Drew SEM
9. Voy Media
About: Voy Media is a performance-based digital marketing and advertising agency based in New York, NY, specializing in scaling e-commerce and DTC brands through paid media, creative production, and website optimization. They provide comprehensive digital growth strategies combining data analytics, targeted social advertising, and continuous conversion tracking.
Key Services: Performance Marketing, Paid Social Advertising, Creative Studio, Website Optimization, Growth Marketing, Landing Page Optimization
Industries Served: E-commerce, DTC, SaaS, Education, Startups
Notable Clients: No client publicly named on the firm's own site
Locations: New York, New York
Pricing: Quote-based
Great For: E-commerce brands, DTC brands, SaaS brands
Website: Voy Media
10. Astoria Advertising Company
About: Astoria Advertising is a digital marketing agency built on strategy, creativity, and agility, delivering data-driven strategies and transparent reporting. They provide comprehensive digital services including SEO, email marketing, conversion rate optimization, web analytics, and paid advertising.
Key Services: Web Analytics, Paid Advertising, SEO, Email Marketing, CRO, Web Design
Industries Served: Not publicly stated
Notable Clients: Dermaclara
Locations: New York
Pricing: Quote-based
Great For: Local and regional brands
Website: Astoria Advertising Company
11. Vab Media Digital Agency, LLC
About: Vab Media Digital Agency, LLC is a New York City-based boutique digital marketing and web design agency founded in 2010. They provide landing page optimization, website development, content marketing, paid ad management, and SEO services to help brands maximize conversions. Their core focus includes ecommerce growth, small business marketing, and executive thought leadership.
Key Services: Landing Page Optimization, Website Development, SEO Web Design, Content Marketing, Paid Search (PPC), Social Media Marketing
Industries Served: Ecommerce, Small Business, Executive Thought Leadership, Consumer Electronics, Solar, Coworking, Financial Services, Construction, Security Systems, Accounting, Entertainment, Retail
Notable Clients: Studio Abachar, Mykonos Kouzina
Locations: New York, New York
Pricing: Quote-based
Great For: Ecommerce brands, Small Business brands, Executive Thought Leadership brands
Website: Vab Media Digital Agency, LLC
12. Demand Growth Digital
About: Demand Growth Digital is a performance digital marketing and A.I. automation agency headquartered at 135 Madison Ave in New York, NY. The firm specializes in data-driven marketing campaigns, sales funnel creation, and implementation of A/B testing to tweak and improve conversion rates across paid channels.
Key Services: Digital Marketing & Consultancy, Search Engine Optimization (SEO), Pay Per Click (PPC) Management, Paid Advertising (Social, Search SEM, Display, Native & Programmatic), Social Media Marketing, Email and SMS Marketing, Website and Mobile App Design & Development, A/B Testing & Conversion Optimization
Industries Served: Healthcare & Medical Spas, Ecommerce, Solar, Roofing, Professional Services
Notable Clients: No client publicly named on the firm's own site
Locations: New York
Pricing: Quote-based
Great For: Healthcare & Medical Spas brands, Ecommerce brands, Solar brands
Website: Demand Growth Digital
13. e9digital
About: e9digital is a digital web agency based in New York City that specializes in web design, web development, and conversion rate optimization. They focus on combining strategy, design, and user behavior insights to build conversion-focused websites that turn visitors into leads and customers. Their approach integrates analytics, forms optimization, and layout adjustments to enhance site performance and drive measurable business results.
Key Services: Web Design, Web Development, Conversion Rate Optimization (CRO), Digital Marketing, UI/UX Design, Search Engine Optimization (SEO)
Industries Served: Not publicly stated
Notable Clients: No client publicly named on the firm's own site
Locations: New York
Pricing: Quote-based
Great For: Local and regional brands
Website: e9digital
Quick Comparison Table
| Agency | Key Specialty | Starting Price | Best For |
|---|---|---|---|
| 1. Web Tonic | Full-Service Performance Marketing | USD $3,000/mo | Mid-market to Enterprise |
| 2. MacroHype | Conversion Rate Optimization (CRO) | Quote-based | E-commerce brands |
| 3. BusySeed | Conversion Rate Optimization (CRO) | Quote-based | SaaS brands |
| 4. NinjaPromo | Conversion Rate Optimization (CRO) | Quote-based | B2B brands |
| 5. Chatter Buzz | Conversion Rate Optimization | Quote-based | Financial Services brands |
| 6. DiscoverMyBusiness Digital Marketing Agency | Digital Marketing | Quote-based | Healthcare brands |
| 7. Leadige Media Group | Search Engine Optimization | Quote-based | B2B brands |
| 8. Digital Drew SEM | Google Ads / PPC | Quote-based | E-commerce brands |
| 9. Voy Media | Performance Marketing | Quote-based | E-commerce brands |
| 10. Astoria Advertising Company | Web Analytics | Quote-based | Local and regional brands |
| 11. Vab Media Digital Agency, LLC | Landing Page Optimization | Quote-based | Ecommerce brands |
| 12. Demand Growth Digital | Digital Marketing & Consultancy | Quote-based | Healthcare & Medical Spas brands |
| 13. e9digital | Web Design | Quote-based | Local and regional brands |
Frequently Asked Questions
What sits inside a New York conversion rate optimization engagement?
Four parts, and each belongs on its own line of the quote. Research comes first: analytics review, session recordings, heatmaps and whatever user testing the budget allows. Hypotheses follow, written so a result can settle them. Testing is third, which is where sample size, test duration and statistical significance decide whether you learn anything. Implementation is fourth, because a winning variant that never ships is a report, not a gain.
Why does this shortlist stop at twelve external firms?
Because the evidence bar removed everyone else. We started from the agencies a New York search surfaces, then read each site for conversion work on the record: testing programs described, experiment tooling named, optimisation service pages that load, and a logo of their own rather than stock art. Firms selling CRO only as a bullet under web design, and sites we could not fetch, were cut. Nothing was added to round the number up.
Which of these agencies name clients I can verify?
Five of the twelve. MacroHype names Universal Relocations and Second Start Financial, BusySeed names Cielo Global Holdings, and DiscoverMyBusiness Digital Marketing Agency names PowerPak and Anchor Health Home Care. The rest credit nobody on the pages we read, which under a confidentiality clause is ordinary rather than suspicious, though it pushes references into the first call. Ask for two tests in your own category, including one that lost, and for the numbers behind both.
How do I compare quotes when nobody publishes pricing?
Fix the deliverables before you read a figure. Since no firm here prints a rate, bids only become comparable once you have set how many tests run per month, who writes the hypotheses, whether development and design of each variant are included, which analytics and testing tools you pay for directly, how results are reported, and what happens to a winner. Two bids on one brief routinely differ threefold on those lines.
Do I have enough traffic, and does the agency need to be in New York?
Traffic decides more than geography. A test needs enough conversions per variant to settle inside a few weeks, so low-volume sites are better served by research, qualitative testing and outright redesign than by a split-testing retainer. Ten of the twelve firms publish a New York address and the rest sell into the city from elsewhere: NinjaPromo (London, United Kingdom) and Chatter Buzz (Orlando, Florida). Proximity helps while the research is being argued out, and matters little once tests are running.
Choosing a Conversion Rate Optimization Partner in New York
Ten of the twelve external firms here publish a New York address, so geography alone will not shorten this list. What separates them is whether experimentation is the core craft or a service sold under a website build.
Five credit a client you can check, and not one prints a rate. Settle how many tests a month you are buying, and who builds the winning variant, before you collect quotes.
Programs fail on volume and on implementation, rarely on ideas. Ask what conversion volume your pages need for a valid test, how long each one runs, and who ships the winner into the live site.
Whoever takes the brief, read the research plan and the reporting together, because a test with no hypothesis behind it is decoration. If you would rather hold measurement, testing and the growth program in one place, read our latest analysis or see how we work in New York.
