CRO Agencies in New York City, Midtown to SoHo (2026)
New York City has about 8.48 million people and 194,269 employer firms, per US Census QuickFacts. Plenty of “NYC CRO” pages come from firms with no office here.
Six agencies passed our check for a Manhattan office, a CRO page and 2026 activity. One more lists New York but no street.
Which New York CRO agency fits you?
For 2026, the New York CRO agencies worth a call are Tinuiti, Avenue Z, NoGood, Avex Designs, BusySeed, MacroHype and Prismfly.
- Large paid media programmes: Tinuiti
- PR and CRO together: Avenue Z
- Startup growth: NoGood
- Shopify Plus personalisation: Avex Designs
- Managed testing for smaller firms: BusySeed
- SEO-led local businesses: MacroHype
- DTC Shopify testing: Prismfly (office to confirm)
CRO agencies by part of Manhattan
All six sit in Manhattan, below 50th Street.
Midtown
Tinuiti on West 33rd Street and MacroHype on West 45th Street both work here. One leans on paid media, the other on SEO.
Flatiron, NoMad and Chelsea
Avenue Z on Fifth Avenue, BusySeed on Broadway and Avex Designs on Ninth Avenue cover PR-led CRO, managed testing and Shopify Plus.
SoHo
NoGood runs its head office here and plans growth work for startups. Prismfly lists New York with no street, so ask which team you would work with.
Build trust & FOMO
Highlight real-time activities like reviews, sales & sign-ups.
New York CRO agencies compared
None of the seven publishes a CRO price.
| Agency | Address | What it tests | Start with | Fits |
|---|---|---|---|---|
| Tinuiti Head office |
111 W 33rd St, Midtown | Landing pages and site tests for paid media | Get in touch | Big paid media budgets |
| Avenue Z PR plus performance |
156 5th Ave, Flatiron | UX design, A/B tests, funnel data | Contact form | Brands mixing PR and CRO |
| NoGood Growth agency |
SoHo head office | Split tests and heatmaps | Strategy call | Growth-stage startups |
| Avex Designs Shopify Plus |
368 9th Ave, Chelsea | Growth X program with personalisation | Consultation | Shopify Plus brands |
| BusySeed Since 2013 |
1178 Broadway, NoMad | Funnel, checkout and form testing | Free strategy session | Small and mid-size firms |
| MacroHype SEO and web |
115 W 45th St, Midtown | Usability and conversion analysis | Contact form | Local businesses on SEO |
| Prismfly Shopify CRO |
New York, no street shown | A/B tests and personalisation | Let’s talk | DTC Shopify brands |
The 7 CRO agencies in New York
Below: who runs each agency, what its CRO page promises, one fact worth knowing and who it suits.
1. Tinuiti: Paid Media CRO
Tinuiti is a large performance marketing agency with its head office at 111 West 33rd Street. Its CRO team builds and tests landing pages so ad traffic converts.
On its CRO page: Website and landing page optimisation, built without your developers.
Worth knowing: A CRO team with more than 40 years of combined experience.
Choose it for: Brands spending heavily on search and social ads.
2. Avenue Z: PR Meets CRO
Avenue Z works from 156 Fifth Avenue in the Flatiron District, with offices in Miami and Orlando. It pairs PR and influencer work with conversion services.
On its CRO page: UX and conversion design, structured A/B tests, heatmaps and funnel data.
Worth knowing: For Prometeo, abandoned cart conversion rose 172% and purchase conversion 35.4%.
Choose it for: Brands that want earned media and CRO from one team.
3. NoGood: Growth Testing
NoGood is a growth marketing agency headquartered in SoHo, with hubs in Miami and Dubai. CRO runs inside its wider growth programmes.
On its CRO page: A/B split tests and heatmaps inside a rapid experimentation framework.
Worth knowing: Its SoHo head office anchors teams on three continents.
Choose it for: Startups chasing fast growth.
4. Avex Designs: Personalisation
Avex Designs is a Shopify Plus agency at 368 Ninth Avenue in Chelsea. Its Growth X program mixes A/B tests with on-site personalisation.
On its CRO page: CRO for Shopify and Shopify Plus, with Dynamic Yield experiences.
Worth knowing: Product recommendations drove 13.7% of ALASTIN’s revenue over 30 days.
Choose it for: Shopify Plus brands ready for website personalisation.
5. BusySeed: Managed CRO
BusySeed has run digital marketing from New York since 2013 and now works from 1178 Broadway in NoMad. Its CRO service is a managed programme.
On its CRO page: Funnel leak audits, A/B and multivariate tests, checkout and form fixes.
Worth knowing: A 19.85% peak conversion rate on one client funnel and 38% more revenue per visitor.
Choose it for: Small and mid-size firms that want testing handled for them.
6. MacroHype: SEO Plus CRO
MacroHype is an SEO and web agency at 115 West 45th Street in Midtown. CRO sits beside its search, PPC and web builds.
On its CRO page: Usability analysis, conversion analysis and ready-made landing page templates.
Worth knowing: It runs its own platform with SEO, PPC and reporting toolkits.
Choose it for: Local businesses that already buy SEO.
7. Prismfly: Shopify CRO
Prismfly is a Shopify CRO agency that lists Dallas and New York as its bases. It handles strategy through to build for DTC brands.
On its CRO page: A/B testing, personalisation and competitor benchmarking.
Worth knowing: It claims $475m in client revenue generated, and 33% more revenue for Primal Kitchen.
Choose it for: DTC Shopify brands, once you confirm which office serves you.
Big agency, specialist or local shop?
New York’s bench splits three ways, so pick the lane first.
- Big agencies: Tinuiti and Avenue Z run CRO next to large media and PR teams.
- Specialists: NoGood, Avex Designs and Prismfly focus on growth or Shopify.
- Local shops: BusySeed and MacroHype suit smaller budgets and SEO buyers.
- Ask for a test plan: any lane should show how it sizes an A/B test before launch.
Build trust & FOMO
Highlight real-time activities like reviews, sales & sign-ups.
Wrap Up
Choose Tinuiti or Avenue Z for CRO inside big media, Avex Designs for Shopify Plus, and BusySeed for a managed programme on a smaller budget.
Outside the US? Our conversion rate optimization agencies roundup has picks by country.
For upstate options and the state view, see CRO agencies in New York.
Frequently Asked Questions
Who is the best CRO agency in New York City?
The best New York CRO agency depends on the brief: Tinuiti for big paid media, Avex Designs for Shopify Plus, and BusySeed for managed testing on smaller budgets.
How many CRO agencies have an office in Manhattan?
Six of the agencies we checked show a Manhattan office: Tinuiti, Avenue Z, NoGood, Avex Designs, BusySeed and MacroHype.
How much does a CRO agency cost in New York?
None of the seven New York CRO agencies here publishes a price, so expect a free strategy session, consultation or proposal before a quote.
Are there Shopify CRO agencies in New York?
Avex Designs in Chelsea runs a Shopify Plus CRO program, and Prismfly also tests Shopify stores, though it lists no New York street address.
Krunal Vaghasiya is a marketing tech expert who boosts e-commerce conversion rates with automated social proof and FOMO strategies. He loves to keep posting insightful posts on online marketing software, marketing automations, and improving conversion rates.
Capterra