Updated at 6:06 p.m. Pacific to add startups to the list, thanks to some help from Draper himself.

Silicon Valley venture-capital veteran Tim Draper has consistently been blunt about his bullishness on the Bitcoin cryptocurrency.

“I am a big Bitcoin fan,” he told VentureBeat in an email conversation the other day.

He couldn’t say whether Draper Fisher Jurvetson, the venture firm he cofounded in 1985, has moved to back Coinbase, as some reports have indicated. But he could disclose his own holdings in other Bitcoin-related young companies.

“I have backed 17 startups,” as he put it in the email.

Well, Mr. Draper, we couldn’t help but wonder if we knew about all 17. We were able to come up with most of them — 16 to be exact. He wouldn’t identify the 17th.

Without further ado, here are the ones we do know about:

Mirror (formerly Vaurum), a Bitcoin escrow exchange

Korbit, a Korean Bitcoin wallet and exchange service

BitPagos, a Bitcoin payment service

CoinLab, a Bitcoin business incubator

CoinPlug, a Bitcoin wallet and payment startup

SnapCard, a startup that lets businesses accept Bitcoins

Gliph, a startup with a messaging app that lets you send Bitcoins

Volabit (formerly Coincove), a Mexican Bitcoin exchange

Hedgy, a startup with contracts for cutting down on the volatility of Bitcoin value

CoinHako, a startup that lets people buy Bitcoin with Singapore dollars

Block Cypher, a startup with tools for increasing trading speeds

OKCoin, a Chinese Bitcoin exchange

Atlas, a Bitcoin debit card

Paytagz, an ecommerce startup focusing on mobile photos

Pagatech, a Nigerian mobile-payment startup

Alydian, a now-bankrupt Bitcoin mining operation

If you, loyal VentureBeat reader, happen to know Draper’s missing Bitcoin startup, please do email our tips line (tips@venturebeat.com).