Letterhead
Blogging & Newsletter Platforms
1backers · Florida Opportunity Fund
10+team · employees, estimated range
2020founded
40stories in the press
Overview
Master newsletters at scale. 10× your newsletters across content production, audience intelligence, and revenue.
Funding and backers
Team
11-50
employees, estimated range
Backers
1
Florida Opportunity Fund
Momentum
15/100
in the news
Last sign of life
1 mo ago
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
2020
Founded
Tractionpublic signals, read monthly
Web presence
top 6%
of 133.2M domains by links, Common Crawl
Backed byfrom the funds' portfolios and accelerator catalogs
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Growth
Hiring Momentum
24/100
Hiring freeze
Open positions
0
0 opened / 0 closed in 30 days
Median time-to-fill
227 days
faster than 5% of the market
Hiring Dynamics
0%
Activity Timeline
Added Machine Learning to stack
Sep 2026
Tech stack
Technologies named in job postings at Letterhead over the last 12 months, by layer, with the share of postings for each.
Technologies in use
1
Postings analysed
3
Stack modernity
85/100
Practices & domains
Machine Learning
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Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
Florida Opportunity FundVia a fund
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
News
Newsletter Engagement Segments: The Five Reader Types
Every newsletter list is really five lists: loyalists, new, casual, fading, and ghosts. What each group needs, and why the ghosts cost you deliverability.
Read more
Report
Report
Three things that separate a newsletter from a content product
Most newsletters are scheduled email. A few are products. The difference is three habits that take a quarter to install and a year to perfect.
Read more
Report
How to Increase Newsletter Engagement & Keep Readers
Learn how to increase newsletter engagement with practical tips for creating valuable content, improving open rates, and building lasting reader relationships.
Read more
Report
Newsletter Performance Metrics: A Complete Guide
Get clear on newsletter performance metrics. Learn which metrics matter, how to track them, and practical tips to improve your email results.
Read more
Report
Newsletter Sponsorship Packages: A Publisher's Guide
Learn how to create effective newsletter sponsorship packages, set pricing, and attract the right sponsors to grow your newsletter revenue with confidence.
Read more
Report
Email Deliverability Monitoring: A Publisher's Guide
Master email deliverability monitoring with practical tips for publishers. Learn how to track, maintain, and improve your newsletter's inbox placement.
Read more
Report
How to Improve Email Open Rates: 15 Proven Tactics
Learn how to improve email open rates with 15 proven tactics for better subject lines, timing, segmentation, and list management. Get practical tips now.
Read more
Report
Newsletter Open Rate Benchmarks: A Modern Guide
Get clear insights on newsletter open rate benchmarks, what impacts your results, and practical tips to improve your email engagement and performance.
Read more
Report
7 Free Responsive Newsletter Templates That Just Work
Find 7 free responsive newsletter templates that look great on any device. Save time and create professional emails with these easy-to-use designs.
Read more
Report
Show more news
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
Miami
United States
HQ
A team obsessed with building better newsletters.
10-50 est. staff
Based in Miami; team distributed across the US. 12555 Biscayne Blvd, Miami, FL 33127.