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Seaweed Packaging Company Sway Closes $2.5M Raise Led By Valor Siren Ventures

PRIVATENov 04, 2021

Amount Raised

$2.5 Million

Round Type

Seed

BerkeleyManufacturingBiotechnologyMedia And EntertainmentDesign

Description

Sway, the California-based materials company producing seaweed-based, home-compostable replacements for single-use plastic packaging, has announced its initial funding round of $2.5 million. Led by Valor Siren Ventures and supported by Conservation International Ventures, Alante Capital, BAM Ventures, and other industry-aligned investors, the raise will support Sway’s development of scalable and sustainable replacements for thin-film plastic packaging derived from petroleum.

Quick answer

Sway raised $2.5 Million in a Seed round, dated November 4, 2021. Sway is based in Berkeley, California, United States.

How much did Sway raise?
Sway raised $2.5 Million in a Seed round on November 4, 2021.
What does Sway do?
Sway is a materials company based in Berkeley, CA.
Where is Sway based and how big is it?
Sway is based in Berkeley, California, United States.
Who are the decision-makers at Sway?
Fundz holds 1 contact at Sway, including the Director. Names and contact details are shown to Fundz members.

Source: Fundz verified event record.

Who else raised in Media And Entertainment and Design around the same time

Companies in the same sectors as Sway that raised within 45 days of this round, from Fundz verified event records.

  • Nodexus raised $30M (Series A) on December 16, 2021.
  • Metox raised $23M (Series A) on December 15, 2021.
  • Conavi Medical raised an undisclosed amount (Funding Round) on December 15, 2021.
  • AnHeart Therapeutics raised $61M (Series B) on December 14, 2021.
  • Route 92 Medical raised $111M (Series E) on December 14, 2021.
  • Enzo Life Sciences raised an undisclosed amount on December 13, 2021.

Who to call at Sway, and when

A new round usually means Sway is about to hire and buy. The teams that reach out first get the meeting.

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  • The decision-makers there, with verified emails
  • Who you already know at Sway, from your own LinkedIn network

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Company Information

Company

Sway

Location

Berkeley, California, United States

About

Sway is a materials company based in Berkeley, CA. It was founded in 2020 by designer Julia Marsh (CEO), sustainable development practitioner Matt Mayes (COO), and former Chobani CBO Leland Maschmeyer, who is also co-founder of global design agency COLLINS. Born from their frustration with the shortcomings of existing plastic alternatives, Sway targets thin-film plastic packaging, the hardest-to-replace plastics on the market. Sway products are derived from seaweed, fully bio-based, nontoxic, high-performance, and rapidly compostable in home and industrial compost environments. Learn more about Sway at their website, swaythefuture.com or at @swaythefuture on Instagram, Facebook, Twitter, and LinkedIn. Product images can be found in this folder.

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Related People

1 contact
Verified contactsLeland M., DirectorSee plans and pricing
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Sway raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 281,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.