Department of Product
Investor Due Diligence Report
substackBusiness
Product-led analysis and AI Knowledge for people who work in tech. Join product managers, designers, engineers and VCs from Spotify, Netflix, Apple, Stripe and more.
54K
3.6K paid
~0%
Subscriber count is a platform estimate
Insufficient data
23 of 30 days needed
Pricing
$12/mo
$120/yr annual option
$34K
3.6K paid subs
$34K/mo – $34K/mo(±0%)
0.4
28.4
0.05%
(comments + likes) / subscribers
Weekly
1.6 posts/week
64/100
Consistent (~4.4d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| Founding Journey | 240K | N/A | $50/mo | substack |
| a16z speedrun | 202K | +4.0% | Free | substack |
| Refactoring | 173K | N/A | $15/mo | substack |
| Clouded Judgement | 87K | N/A | Free | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 52.5K | $33,304.14 | — |
| Mar 2026 | 54K | $34,258.14 | +2.9% |
| Apr 2026 | 54K | $34,258.14 | ~0% |
| May 2026 | 54K | $34,258.14 | ~0% |
Platform Dependency
Hosted on substack subdomain
Publishing Consistency
Variable publishing frequency
Key Person
Single-author publication — key-person dependency
Audience Concentration
Consistent engagement across posts
Subscriber threshold
54K subscribers — above the 2K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
100% of 86 similar-size peers in Business have paid tiers
Pricing position
$12/mo vs $7/mo category median (1519 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $12 | $120 |
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.
Score based on available components only.
| Component | Score | Weight |
|---|---|---|
| Engagement Rate | 43/100 | 30% |
| Paid Subscriber Ratio | 90/100 | 25% |
| Publishing Consistency | 82/100 | 10% |
| Secret Strategist |
| 78K |
| +0.7% |
| Free |
| substack |
Revenue Model
Active paid subscription tier