Castrum Istanbul ✓

@castrumistanbul · Senate · joined 13 Apr 2015

Castrum İstanbul is the next-generation blockchain ecosystem, shaped by the inspiration sourced from Ancient Rome.

25 916Followers

325Following

5 373Posts total

16.5KViews on collected posts

Latest posts

Castrum Istanbul ✓@castrumistanbul16 Jul

We’re doubling down on @SwarmBase. After leading its previous round, Castrum has made a follow-on investment in SwarmBase, reinforcing our long-term conviction in the team. SwarmBase is building the coordination layer for autonomous AI agents, and the team’s execution made this 7.7K views · 10 likes · 2 reposts · 3 replies Open on X →

Castrum Istanbul ✓@castrumistanbul3 Jul

.@Circle is in Istanbul. @jerallaire is in Istanbul. Stablecoin payments aren’t a trend anymore they’re becoming infrastructure. The market is clearly shifting toward institutional adoption, and that’s telling us where the next cycle is headed. https://t.co/g6b6FEvlFl

1:09

1.3K views · 10 likes · 0 reposts · 0 replies Open on X →

Castrum Istanbul ✓@castrumistanbul26 Jun

Interesting perspective we get what you're trying to say. That said, I'm not sure Uber and Airbnb are the best comparisons for Binance. The regulatory and operational dynamics of crypto infrastructure are fundamentally different from those of the sharing economy. Still, I agree 1.4K views · 5 likes · 1 reposts · 0 replies Open on X →

Castrum Istanbul ✓@castrumistanbul21 Jun

Great leaders build companies. Great fathers build generations. Happy Father's Day to all fathers around the world. — Castrum Capital https://t.co/8BOKjEgdZK

640 views · 4 likes · 0 reposts · 0 replies Open on X →

Castrum Istanbul ✓@castrumistanbul19 Jun

Honored to see Castrum recognized among the most active VCs in the ecosystem. We’ll keep backing ambitious founders, supporting innovation, and building for the long term. The journey continues. 💪 1.4K views · 10 likes · 2 reposts · 0 replies Open on X →

Castrum Istanbul ✓@castrumistanbul19 Jun

Top 10 most active crypto VCs in 2026 (by deals) 1. @cbventures - 30 2. @animocabrands - 18 3. @a16zcrypto - 18 4. @tether - 14 5. @castrumistanbul - 10 6. @BeckerVentures - 9 7. @GSR_io - 9 8. @ycombinator - 8 9. @circle_ventures - 7 10. @paradigm - 7 https://t.co/RKM2T5ukHd

4K views · 42 likes · 5 reposts · 3 replies Open on X →

Against accounts of the same size

6 posts from the last 90 days, next to the 10K–100K follower range. shown widely, but few of those viewers react.

Median views1 405this account1 026median for 10K–100K

Reach, %5.42%this account3.75%median for 10K–100K

Engagement, %0.72%this account1.68%median for 10K–100K

Metric	This account	Median for 10K–100K	Ratio
Median views per post	1 405	1 026	1.37×
Reach (views ÷ followers)	5.42%	3.75%	1.45×
Engagement rate	0.72%	1.68%	0.43×

Others in this range → Compare with another account → How these benchmarks are built →

Growth & engagement

How the posts we collected actually performed: views and reaction rate post by post, what the audience did with them, and where the follower count goes.

Views per post

4K19 Jun

1.4K

64021 Jun

1.4K26 Jun

1.3K3 Jul

7.7K16 Jul

Last 6 collected posts, oldest on the left. The scale is logarithmic: one post can outrun the rest a hundred times over.

Engagement rate per post

1.32%19 Jun

0.86%

0.62%21 Jun

0.43%26 Jun

0.82%3 Jul

0.19%16 Jul

Reactions — likes, reposts, replies and quotes — divided by views. Median for 10K–100K accounts is 1.68%.

What the audience does

Likes77.9%81 in total

Reposts9.6%10 in total

Replies5.8%6 in total

Quotes2.9%3 in total

Bookmarks3.8%4 in total

Share of every reaction we collected for this account. Replies mean argument, reposts mean endorsement, bookmarks mean the post was worth keeping.

The follower curve appears once this account has two daily snapshots — we take one a day, and this one is on its first.