Tether: Funding, Investors & Team (Sep 2026)
Tether, a climate-tech startup based in Barcelona, has created a solution that transforms electric vehicles (EVs) into a massive AI-coordinated battery system for the grid. By analyzing the charging habits of millions of private EVs, Tether turns these cars into a clean distributed battery, reducing CO2 emissions over the lifespan of each vehicle. This technology allows Tether to bid vehicle flexibility in balancing markets, generating additional revenue for partner OEMs and charge point operators, all while helping to maintain grid stability with clean power sources.
Tether has raised $1.5M across 1 funding round on record, the most recent a Pre-Seed of $1.5M announced in Jun 2025.
That round is below the $15M median round size for Energy companies tracked on FundedIQ over the last two years.
Tether Company Profile and Key Stats
Latest funding round on record: Jun 2025.
Tether Funding Rounds
Tether Founders and Leadership Team
No contact details are on record for this team yet.
Tether Funding Compared to Other Energy Startups
Tether's latest round of $1.5M is below the median round in Energy. Medians cover the last 24 months of disclosed rounds.
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Tether Funding FAQs
What does Tether do?
Tether, a climate-tech startup based in Barcelona, has created a solution that transforms electric vehicles (EVs) into a massive AI-coordinated battery system for the grid. By analyzing the charging habits of millions of private EVs, Tether turns these cars into a clean distributed battery, reducing CO2 emissions over the lifespan of each vehicle. This technology allows Tether to bid vehicle flexibility in balancing markets, generating additional revenue for partner OEMs and charge point operators, all while helping to maintain grid stability with clean power sources.
How much funding has Tether raised?
Tether has raised $1.5M across 1 round on record. The most recent is a Pre-Seed of $1.5M announced in Jun 2025.
When did Tether last raise funding?
Tether's most recent funding round on record is a Pre-Seed of $1.5M, announced in Jun 2025.
Who founded Tether?
FundedIQ lists Tim O'neil (Founder) at Tether.
Where is Tether headquartered?
Tether is based in Stockholm, Stockholms Lan, Sweden.
How many employees does Tether have?
Tether is in the 11-50 employee band.
How does Tether's funding compare to other Energy startups?
Tether's latest round of $1.5M is below the $15M median round size for Energy companies on FundedIQ across 2,284 tracked companies over the last two years.
About FundedIQ's Tether Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for Tether is left off this page rather than filled in.
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