Hiflyer Digital
#1 in Ecommerce
Email and SMS retention agency for ecommerce, focused on converting one-time buyers into repeat customers.
- Founded
- 2015
- HQ
- Hackensack, NJ
- Team
- 6-15
Editor’s Choice — honoree press kit available
Access press kit →Founder
Meet the founder
Isaac Hyman
Founder & CEO
Isaac Human is founder and former VP of retention at HiFlyer Digital, an ecommerce email and SMS marketing agency based in New Jersey. With 15+ years in the retention marketing space, he has led campaigns generating $425M in revenue for 100+ retail clients.
Editorial
Editor’s take
HiFlyer Digital positions itself narrowly around email and SMS retention for DTC ecommerce retailers, citing 150+ clients and $425M in generated revenue. The founder is a former VP of retention, which anchors the positioning. The site emphasizes playbooks, advanced automations, and segmentation over commoditized email sends. Claims are substantial (1B+ emails sent, specific revenue figures) though not independently verified on the site.
What they do
Services
Email Marketing Management
Full done-for-you or done-with-you execution of the Klaviyo (or other ESP) program for ecommerce retailers, including a 12-month campaign calendar personalized to the brand's promotional rhythm, merchandising cycles and customer segments rather than generic holiday sends.
SMS & Push Marketing
Layered onto email rather than run as a standalone channel, with attention to list growth compliance, segmentation and message cadence so SMS complements flows instead of cannibalizing them. Push notifications are added for brands with app ecosystems.
Advanced Flows & Automations
Builds out beyond the standard welcome, abandoned cart and post-purchase sequences into behavioral and predictive journeys, browse and category-specific flows, winback ladders and replenishment logic tuned to each retailer's average order cycle.
Retention Strategy & Segmentation
Applies the in-house S.P.A.M. framework to turn one-time buyers into repeat customers, with custom RFM-style segmentation, churn diagnostics and a focus on growing email and SMS as a percentage of total store revenue (commonly targeting the 25-30% range).
Creative, Copy & Design
In-house creative team produces on-brand email and SMS creative from concept to send, with emphasis on customer-voice copy and modular templates designed for ecommerce merchandising rather than newsletter-style blasts.
Weekly Strategy & Reporting
Weekly or bi-weekly client calls with on-demand Slack access, plus monthly reporting that goes beyond opens and clicks into revenue per recipient, flow-level contribution and list health metrics, paired with a rolling 12-month roadmap.
Proof of work