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Revr

Biotech & Life Sciences · San Leandro, United States · Founded 2015

Formerly Tierra Biosciences. Accelerates bio-discovery using cell-free systems combined with powerful automation tools for data generation MoreLess

Revr (formerly Tierra Biosciences) founded in 2014 by Michael Nemzek, Zachary Sun, and George Church, operates at the forefront of the synthetic biology sector. The company emerged from research conducted at the California Institute of Technology (Caltech), with the founders leveraging their deep expertise in biochemistry and bioengineering. Michael Nemzek, the CEO, brings a background in biochemistry and molecular biophysics from Caltech, while CSO Zachary Sun holds a PhD in Bioengineering from the same institution. This strong scientific foundation is central to the company's approach.

The core of Tierra's business is its proprietary cell-free protein synthesis platform. This technology allows for the rapid, high-throughput production of custom proteins without the need for living cells, significantly accelerating research and development timelines. The platform operates on a 'protein-as-a-service' model, functioning through an e-commerce-like interface where clients can order specific proteins. This simplifies a traditionally complex and time-consuming process, making custom protein synthesis more accessible to a broader range of scientists and researchers.

Tierra's primary clients are scientists and R&D teams within pharmaceutical companies, agricultural technology firms, and other bio-based industries. By providing a streamlined method for creating and testing novel proteins, the company enables these clients to expedite the discovery and development of new drugs, sustainable materials, and agricultural products. For instance, the platform allows for the rapid screening of hundreds of protein variants to identify candidates with desired properties, a task that would be resource-intensive using conventional cell-based methods. Revenue is generated directly from these protein synthesis services. In 2021, the company secured $11 million in a Series A funding round, a milestone that has supported the expansion of its platform and team.

Keywords: synthetic biology, cell-free protein synthesis, protein-as-a-service, custom proteins, high-throughput screening, drug discovery, agricultural technology, bioengineering, R&D tools, biochemicals

Company overview

Revr company information

The essential company record, classifications and operating signals in one place.

Status
Operational
Founded
2015
Headquarters
San Leandro, United States
Employees
11
Open positions
None listed
Dealroom signal
62.9
client focusb2btechnologyArtificial IntelligencetechnologyHardwaretechnologyDeep Techsub industryPharmaceuticalsub industryBioTechnologysub industryAgriTechsub industryInnovative Foodbusiness modelManufacturingindustryHealthsectorBiotechnologysectorDNAsectorGenetics and genomicssectorCore AI

Valuation & funding

Revr funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES AEquity / VC Mar 2024 $11M $88M Social Capital · Creative Ventures · Freeflow Ventures · In-Q-Tel
EARLY VCEquity / VC Sep 2023 $18M $70M Undisclosed
SEEDEquity / VC Nov 2020 $3.6M $14M Undisclosed
SEEDEquity / VC Sep 2018 $2.6M $10M Fifty Years · KdT Ventures · Social Capital
GRANTOther financing Feb 2018 $1.3M US National Science Foundation
SUPPORT PROGRAMOther financing Aug 2016 The Strauch Cleantech to Market Program
GRANTOther financing Dec 2015 US National Science Foundation
SPINOUTOther financing Jul 2015 Caltech, California Institute of Technology · University of California, Los Angeles
Showing 8 recorded eventsUnlock the complete deal history →

Financials

Workforce over time

Available workforce history. Financial fields without reported data are omitted.

YearEmployees
2026 11
2025 13
2024 24
2023 17
2022 16
2021 16
2020 14
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Growth signals

Revr website traffic

Latest recorded traffic for Revr is 290 monthly website visits, down 83.9% over the last three months. Revr's team declined 15.4% over the past year.

Latest monthly visits290 3-month web change-83.9% 1-year team growth-15.4%
Monthly website visits92 observations · Jun 2018–Jun 2026
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Comparisons

Revr compared with similar companies

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Showing 8 of the closest matchesCompare every metric →

Talent graph

Revr's talent

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Team profiled 8 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 1 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

18 investors on Revr's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Seed 4 investors entered at this stage
US National Science Foundation
Fifty Years
KdT Ventures
Social Capital
Series A 6 investors entered at this stage
Creative Ventures
Freeflow Ventures
In-Q-Tel
Material Impact
Hillspire
Prosus Ventures
Other known 8 additional known investors
Caltech, California Institute of Technology
The Strauch Cleantech to Market Program
University of California, Los Angeles
Beresford Ventures
Endless Frontier Labs
Humboldt Fund
MBC Biolabs
Small Business Innovation Research

Global footprint

Where Revr has talent and traffic

Workforce by country
1 countries with
team presence
🇺🇸 United States100%
1 country shown

In the news

Latest news about Revr

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Market sentiment

What the market is saying about Revr

An AI-synthesized read of the highest-engagement posts about Revr on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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