Phage Directory

Get your message to the
heart of the phage community.

Phage Directory is a community of phage therapy researchers and professionals. Hundreds of the world’s most prominent phage researchers, clinicians, and biotech professionals visit our website and read Capsid & Tail every week.

Capsid & Tail, our weekly newsletter, consists of a mix of phage therapy and industry news, phage jobs, community requests and announcements, and deep articles on phage research, phage therapy, and current regulations.

Sponsor an issue of Capsid & Tail

Get in front of the entire phage community. Show us how your company is helping to advance phage therapy.

Impressing the phage field means attracting the best minds in the field and potential investments.

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Hire a phage expert

Post your position on the job board and feature it on Capsid & Tail to find your next phage expert, student or postdoc.

Have us Promote your job on Capsid & Tail and Twitter to speed your search.

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Phage Consulting

Looking to invest in phage? We can help you understand phages and the fields of phage therapy and phage biocontrol.

Troubleshooting phages? We can help with that too, by pulling our wide network of phage experts to help you troubleshoot any phage problems you might have.

Learn More

We Work With

Kisaco Research

We’ve Previously Worked With


Locus Bio


Phage Directory growth & metrics

Since the launch of Capsid & Tail in late 2018, Phage Directory has grown substantially, both in its readership and in its network of phage experts, clinicians, and biotech professionals.

Website Metrics

Capsid & Tail Metrics

Since its inception in October 2018, Capsid & Tail has grown tremendously, at around a 20% monthly rate. In 36 weekly issues, we’ve been able to reach a worldwide audience of 528 people, while maintaining a near 50% open rate.

First Issue October 18, 2018
Opted-in Subscribers 528
Open / Click Rate 47% / 14.6%
Reader Top Origins US, UK, Australia, Japan, Finland, Belgium, France, Israel
Newsletter Frequency Once weekly (usually Thursday afternoons, EST)

last updated: 7/25/2019

Twitter Analytics

July 2019 (28 day summary with change over previous period)

Tweet Impressions 71.5K (up 113.5%)
Followers 2,278 (up 139)
Audience top interests Science News (97%), Technology (90%)

Twitter 28 day summary, last updated: 7/25/2019


Get in front of the entire phage community.

We’re a tight community of hundreds of phage experts. Sponsor Capsid & Tail and let the community learn about your products and latest developments.

We are exploring various sponsorship models, including content development, affiliate marketing, and other forms of partnerships.

If you’re interested in working with us, please get in touch by emailing us at

Post a Job

Hire experts from the largest community of phage researchers and phage therapy enthusiasts. Now for free!

Post a Job

Post your phage job for free

List your academic, startup, or pharma phage job in the jobs section, absolutely for free. We are encouraging the phage field to grow, and that means helping both academic labs and biotechs hire the best people, and helping newly grads find great positions within the phage world.

All jobs will be easily found under the jobs board in chronological order. Each week, we’ll highlight a handful of jobs for Capsid & Tail.

Boost your job, get more visibility!

Ensure your job gets prominent visibility in Capsid & Tail and in front of our ~2,000 phage-centric Twitter followers.

  • Promoted jobs will appear on Capsid & Tail twice: once on launch, and once before expiration.
  • Promoted jobs will be tweeted four times between launch and expiration.
  • Promoted jobs will appear at the top of the Job board for 30 days.

Our goals are to grow Phage Directory’s network and to be independently sustainable, so we’re asking for $100 per promoted job.
If you’re able to help us in different ways: like connect us with prominent funders, researchers, regulators, and clinicians in your area, please reach out to us.

Post a Promoted Job

Consulting Services

We can help you with specific phage issues
or with understanding the broader phage therapy market

We can help your organization gain a basic understanding in the phage biology and the phage therapy market. We can also connect you to our wide network of phage experts to help you dig deeper into troubleshooting and understanding any phage problems.

Looking to invest in phages?

We can help you understand the key players in the phage startup and biotech world, and help guide your portfolio strategy.

Troubleshooting phages?

We can help with that too, by pulling our wide network of phage experts to help you troubleshoot any phage problems you might have.

We can help you:

  • Develop phage-related content
    • We worked with Kisaco Research to produce an interview with BiomX, and we’re on advising both the Evergreen Phage Meeting and Phage Futures Europe
  • Help conduct deep market research into the phage world
  • Help you find and fill open phage positions
  • Guide your team through bioinformatics and data science issues

Send us an email at for more information.

Capsid & Tail

Follow Capsid & Tail, the periodical that reports the latest news in phage therapy and the phage community.

We send Phage Alerts to the community when doctors require phages to treat their patient’s infections. If you need phages, please email us.

Supported by

Leona M. and Harry B. Helmsley Charitable Trust

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