Insights

Innovative Genome Platforms Replay's development of disruptive platform technologies such as high payload HSV vectors and hypoimmunogenic genome writing positions it as a leader in advanced gene therapy solutions, creating opportunities to collaborate with biotech firms seeking cutting-edge delivery and editing tools.

Strategic Business Model The hub-and-spoke model separates technology development from therapeutic applications, enabling partner companies to leverage Replay’s platforms for diverse disease targets, opening potential for licensing or technology partnership agreements.

Recent Funding Advances With significant investments including a $55 million seed round and a $1.56 million grant from the Gates Foundation, Replay demonstrates strong financial backing and validation, making it an attractive partner for joint ventures or co-development projects focused on genomic medicine.

Expanding R&D Focus Replay’s recent initiatives, including T cell receptor based therapies and launching Eudora for retinal diseases, showcase growth into immune cell therapies and precision medicine, presenting sales opportunities with biotech and pharmaceutical companies targeting these areas.

Emerging Market Potential With a lean team and a revenue range of up to $10M, Replay’s innovative approach and technological capabilities offer scalable partnerships for established life sciences firms seeking to incorporate genome writing and big DNA delivery into their pipelines.

Replay Tech Stack

Replay uses 8 technology products and services including Wix, Webpack, Apple iCloud Mail, and more. Explore Replay's tech stack below.

  • Wix
    Content Management System
  • Webpack
    Development
  • Apple iCloud Mail
    Email
  • React
    Javascript Frameworks
  • Next.js
    Javascript Frameworks
  • Heroku
    Platform As A Service
  • Node.js
    Programming Languages
  • Google Tag Manager
    Tag Management

Replay's Email Address Formats

Replay uses at least 1 format(s):
Replay Email FormatsExamplePercentage
FLast@replay.bioJDoe@replay.bio
46%
First.Last@replay.bioJohn.Doe@replay.bio
4%
FLast@replay.bioJDoe@replay.bio
46%
First.Last@replay.bioJohn.Doe@replay.bio
4%

Frequently Asked Questions

Where is Replay's headquarters located?

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Replay's main headquarters is located at 5555 Oberlin Drive San Diego, California 92121 United States. The company has employees across 3 continents, including North AmericaAsiaEurope.

What is Replay's stock symbol?

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Replay is a publicly traded company; the company's stock symbol is RPLA.

What is Replay's official website and social media links?

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Replay's official website is replay.bio and has social profiles on LinkedInCrunchbase.

What is Replay's SIC code NAICS code?

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Replay's SIC code is 8733 - Noncommercial Research Organizations NAICS code is 541714 - Research and Development in Biotechnology (except Nanobiotechnology).

How many employees does Replay have currently?

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As of March 2026, Replay has approximately 33 employees across 3 continents, including North AmericaAsiaEurope. Key team members include Head Of Marketing: C. B.Co-Founder: R. W.Founder: A. W.. Explore Replay's employee directory with LeadIQ.

What industry does Replay belong to?

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Replay operates in the Biotechnology Research industry.

What technology does Replay use?

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Replay's tech stack includes WixWebpackApple iCloud MailReactNext.jsHerokuNode.jsGoogle Tag Manager.

What is Replay's email format?

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Replay's email format typically follows the pattern of FLast@replay.bio. Find more Replay email formats with LeadIQ.

How much funding has Replay raised to date?

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As of March 2026, Replay has raised $55M in funding. The last funding round occurred on Jul 25, 2022 for $55M.

When was Replay founded?

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Replay was founded in 2021.

Replay

Biotechnology ResearchCalifornia, United States11-50 Employees

Replay is a genome writing company, which aims to define the future of genomic medicine through reprogramming biology by writing and delivering big DNA. The Company has assembled a toolkit of disruptive platform technologies – including a high payload capacity HSV platform, a hypoimmunogenic platform, and a genome writing platform – to address the scientific challenges currently limiting clinical progress and preventing genomic medicine from realising its full potential. The Company’s hub-and-spoke business model separates technology development within Replay from therapeutic development in product companies, which leverage the technology platforms. For example, Replay’s synHSV™ technology, a high payload capacity HSV vector capable of delivering up to 30 times the payload of AAV, is utilized by Replay’s four gene therapy product companies, bringing big DNA treatments to diseases affecting the skin, eye, brain, and muscle. The Company has, additionally, established an enzyme writing product company engaging its evolutionary inference machine learning and genome writing technology to optimize functionality. Replay is led by a world-class team of academics, entrepreneurs and industry experts.

Section iconCompany Overview

Headquarters
5555 Oberlin Drive San Diego, California 92121 United States
Website
replay.bio
SIC Code
8733 - Noncommercial Research Organizations
Stock Symbol
RPLA
NAICS Code
541714 - Research and Development in Biotechnology (except Nanobiotechnology)
Founded
2021
Employees
11-50

Section iconFunding & Financials

  • $55M

    Replay has raised a total of $55M of funding over 2 rounds. Their latest funding round was raised on Jul 25, 2022 in the amount of $55M.

  • $1M$10M

    Replay's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $55M

    Replay has raised a total of $55M of funding over 2 rounds. Their latest funding round was raised on Jul 25, 2022 in the amount of $55M.

  • $1M$10M

    Replay's revenue is estimated to be in the range of $1M$10M

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