Refactoring
Investor Due Diligence Report
substackBusiness
Join 170,000+ engineers and managers getting practical ideas on engineering leadership, technical strategy and high-performing teams. Free, every week.
Investor Due Diligence Report
Join 170,000+ engineers and managers getting practical ideas on engineering leadership, technical strategy and high-performing teams. Free, every week.
174K
7.4K paid
+0.3%
Insufficient data
29 of 30 days needed
Pricing
$15/mo
$150/yr annual option
$88K
7.4K paid subs
$88K/mo – $88K/mo(±0%)
1.1
36.6
0.02%
(comments + likes) / subscribers
~2x per week
2.5 posts/week
90/100
Very Consistent (~2.9d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| SemiAnalysis | 321K | +0.5% | $50/mo | substack |
| Recruiting Brainfood | 41K | N/A | $7.99/mo | substack |
| Lolita's Newsletter | 23K | N/A | Free | substack |
| Upstream Ag | 20K | N/A | Free | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 174K | $88,185.38 | — |
| Mar 2026 | 173K | $87,684.53 | ~0% |
| Apr 2026 | 173K | $87,684.53 | ~0% |
| May 2026 | 173K | $87,684.53 | ~0% |
| Jun 2026 | 173K | $87,684.53 | ~0% |
| Jul 2026 | 172K |
Platform Dependency
Uses substack platform
Publishing Consistency
Regular publishing schedule
Key Person
Single-author publication — key-person dependency
Audience Concentration
Consistent engagement across posts
Subscriber threshold
174K subscribers — above the 2K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
60% of 42 similar-size peers in Business have paid tiers
Pricing position
$15/mo vs $5/mo category median (905 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $15 | $150 |
Disclaimer: This report is generated automatically based on publicly available data and proprietary estimation models. Estimated subscriber counts are derived from engagement patterns and should be verified through direct disclosure. Revenue estimates are based on known pricing and estimated paid subscriber counts. This report is for informational purposes only and should not be the sole basis for investment decisions.
| Component | Score | Weight |
|---|---|---|
| Engagement Rate | 60/100 | 30% |
| Paid Subscriber Ratio | 100/100 | 25% |
| Growth Consistency | 98/100 | 15% |
| Publishing Consistency | 84/100 | 10% |
| Engineering Futures |
| 12K |
| N/A |
| Free |
| substack |
| $87,171.75 |
| ~0% |
| Aug 2026 | 172K | $87,171.75 | ~0% |
| Sep 2026 | 173K | $87,684.53 | ~0% |
| Oct 2026 | 174K | $88,185.38 | ~0% |
Revenue Model
Active paid subscription tier