Startup profile for Amber: latest funding, latest known valuation, total disclosed funding, investors, status, sources, and why the company is interesting. Part of the Venture Capital Tracker startup directory.

Startup profile · funding coverage

Amber funding, valuation and investors

RNA-based multi-kilobase gene editing platform for diseases with high allelic diversity.

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Funding, valuation & investors

Answer-first snapshot

Latest funding

Seed

$26M · August 2023

Latest known valuation

Not publicly disclosed

Total disclosed equity funding

$26M

Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.

Current status

private

seed · San Francisco, California

Investors in latest funding

Other: Andreessen Horowitz

Sources: latest funding: Seed (Aug 2023): $26M co-led by Playground Global and a16z Bio + Health; ARCH Venture Partners, Eli Lilly, RDF, Hummingbird, Pillar VC participated (Business Wire) Last verified: 2026-07-25

Overview

Amber Bio (amber.bio) develops Cas-based RNA writing tools that enable kilobase-scale edits on RNA strands. Co-founders Jacob Borrajo and Basem Al-Shayeb (Broad Institute and UC Berkeley gene-editing backgrounds) aim to treat genetically heterogeneous diseases with a single therapeutic rather than one program per mutation.

Why Amber is interesting

Amber Bio edits RNA instead of DNA for reversible, multi-kilobase corrections — Broad/Berkeley founders targeting mutation-diverse diseases where one drug can cover many variants.

Product & use cases

Amber Bio (amber.bio) develops Cas-based RNA writing tools that enable kilobase-scale edits on RNA strands.

  • Primary product use case per company site
  • Enterprise or consumer deployment

Key facts

  • Seed (Aug 2023): $26M co-led by Playground Global and a16z Bio + Health; ARCH Venture Partners, Eli Lilly, RDF, Hummingbird, Pillar VC participated (Business Wire)
  • Platform: multi-kilobase RNA editing for allelic-diverse genetic diseases (Amber Bio site)
  • Co-investors not in VCT directory: Playground Global, Eli Lilly, RDF, Hummingbird Ventures, Pillar VC

Funding history (newest first)

Seed

Aug 2023 $26M

Source: Seed (Aug 2023): $26M co-led by Playground Global and a16z Bio + Health; ARCH Venture Partners, Eli Lilly, RDF, Hummingbird, Pillar VC participated (Business Wire)

Unknown

Source: Co-investors not in VCT directory: Playground Global, Eli Lilly, RDF, Hummingbird Ventures, Pillar VC

Investors in our directory

Funds linked from Amber's profile — open a fund page for stage focus and related deal articles.

Competitive landscape

Edge: Amber Bio edits RNA instead of DNA for reversible, multi-kilobase corrections — Broad/Berkeley founders targeting mutation-diverse diseases where one drug can cover many variants.

Amber competes in biotech-life-sciences. Incumbents have distribution; startup edge depends on product depth and buyer references. See competitors for specific tradeoffs — no invented market share claims.

  • Veeva incumbent

    Life sciences cloud incumbent.

  • Dotmatics adjacent

    R&D informatics.

Notable stories

  • Seed (Aug 2023): $26M co-led by Playground Global and a16z Bio + Health; ARCH Venture Partners, Eli Lilly, RDF, Hummingbird, Pillar VC participated (Business Wire)
  • Platform: multi-kilobase RNA editing for allelic-diverse genetic diseases (Amber Bio site)

Industries

Biotech & Life Sciences

Related funding articles

Venture Capital Tracker pieces that cover Amber's financing or category context.

FAQs about Amber

Practical answers founders, operators, and investors typically search for.

Amber Bio (amber.bio) develops Cas-based RNA writing tools that enable kilobase-scale edits on RNA strands.
Directory-linked investors include /fund/andreessen-horowitz, /fund/arch-venture-partners.
seed stage, private status. Seed (Aug 2023): $26M co-led by Playground Global and a16z Bio + Health; ARCH Venture Partners, Eli Lilly, RDF, Hummingbird, Pillar VC participated (Business Wire)
Private as of July 2026 (status: private).
See fundraisingRounds for verified dates and disclosed amounts.
See competitors section — named alternatives with honest positioning notes.
Not publicly disclosed unless noted in highlights.
San Francisco, California

By Venture Capital Tracker

Last updated:

Editorial note: AI tools assisted with research, structure, or drafting. Venture Capital Tracker retains human editorial responsibility for factual accuracy, relevance, and source quality before publication.