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Arena

Deep
1Rounds
20Articles
Generating profile summary — check back in a moment.

Highlights

Total Raised
1 rounds
Latest Round
$150
May 13, 2026
Stage
deep-tech
Employees
Headquarters
News Coverage
20 articles
Last: 1mo ago
Talent Signals
SEC Filings

Backers

Felicis
UC Investments

Funding History

$150
2026
Series A
SEC Form D   Editorial
May 13, 2026
$150 millionSeries A · Editorial

Investors: Felicis, UC Investments

LLM evaluation platform Arena raised $150 million in Series A funding at a $1.7 billion valuation.

News Coverage 20

Freedom1mo ago

BPI, Fedi, Cornell Launch First Empirical Study of Financial Privacy Behavior

The Bitcoin Policy Institute, Fedi, and Cornell University's Tech Policy Institute are publishing the first of four semi-annual reports on how Americans perceive financial privacy and how regulation shapes developer behavior, with Report 1 due April 2026.

Energy1mo ago

SunZia Turbines Complete as U.S. Grid Targets Record 86 GW in 2026

Pattern Energy's SunZia Wind completed installation of all 916 turbines in New Mexico as EIA projects a record 86 GW of new U.S. utility-scale capacity in 2026 — nearly doubling 2025 additions.

Deep1mo ago

FDA Approves Rocket Pharma Kresladi: First Gene Therapy for LAD-I

Rocket Pharmaceuticals received FDA accelerated approval on March 26, 2026 for Kresladi, the first gene therapy for severe LAD-I, along with a Rare Pediatric Disease Priority Review Voucher worth an estimated $100M–$150M.

Freedom1mo ago

Bitcoin Core v31.0rc2 Tagged as P2P Privacy Fix Targets Final Release

Bitcoin Core v31.0rc2 was tagged on March 25, 2026, with a final release targeting early April — and an OpenSats grant is driving a live fingerprinting-attack mitigation into the same codebase.

Clean1mo ago

Econic and Changhua Launch World-First Commercial CO2 Polyols Plant

Econic Technologies and Changhua Chemical inaugurated the world's first commercial-scale CO2-based polyols plant in Lianyungang, China on March 26, 2026, targeting 80,000 tonnes of Carnol output in 2026.

Clean1mo ago

PureCycle Locks €40M EU Grant for 59,000-Tonne Antwerp Plastics Plant

PureCycle Technologies secured a €40 million EU Innovation Fund grant to build a 59,000-tonne dissolution recycling facility at the Port of Antwerp-Bruges, its first European deployment and largest plant outside Ohio.

Deep1mo ago

Normal Computing Raises $50M Led by Samsung Catalyst for Thermodynamic AI Chip

Normal Computing closed a $50M Series B led by Samsung Catalyst Fund on March 25, 2026, backing the world's first thermodynamic computing chip and an AI-native EDA platform already deployed at more than half of the top 10 semiconductor firms by revenue.

Energy1mo ago

DOE Closes $26.5B Southern Company Loan, Largest in Agency History

The DOE closed a $26.5 billion loan to Georgia Power and Alabama Power — the largest in agency history — to fund 16+ GW of mixed capacity across 200+ projects as data center load surges.

Freedom1mo ago

Nunchuk Ships BIP352 Silent Payments, First Major Multisig Wallet to Adopt Standard

Nunchuk has shipped BIP352 Silent Payment send support, becoming the first production-grade multisig wallet to adopt the standard as BIP392 formalises the sp() descriptor for wallet interoperability.

Energy1mo ago

Michigan PSC Approves Consumers Energy Grid Reliability Plan for 2 Million Customers

Michigan's PSC approved Consumers Energy's 2026 Reliability Action Plan on March 27, directing $0.75 of every customer dollar to grid hardening for nearly 2 million homes and businesses — a signal that distribution-level infrastructure is now the regulatory priority as U.S. load growth accelerates.

Clean1mo ago

Microsoft Signs 1 Million-Unit Biochar Deal With Liferaft

Microsoft's 10-year, 1-million-CRU offtake agreement with Iowa-based Liferaft, finalized March 25, 2026, marks the largest U.S. biochar carbon removal deal on record and signals structural maturation of the voluntary carbon removal market.

Deep1mo ago

Shield AI Raises $2B at $12.7B Valuation After Air Force CCA Win

Shield AI's $2 billion raise at a $12.7 billion valuation — anchored by its U.S. Air Force Collaborative Combat Aircraft selection — marks the maturation of autonomous AI pilot software as a standalone, platform-agnostic defense asset.

Energy1mo ago

Doral Renewables Closes $900M Cold Creek Solar-Storage Financing

Doral Renewables closed ~$900M in construction financing for its 430 MWac / 340 MWh Cold Creek Solar + Storage project in West Texas on March 24, 2026, issuing a Notice to Proceed ahead of the July 4, 2026 IRA construction deadline.

Energy1mo ago

EIA Confirms Record 17% Wind-Solar Share; 86 GW Planned for 2026

The EIA's March 24, 2026 Electric Power Monthly confirms wind and solar hit a record 17% of U.S. generation in 2025, with 86 GW of new capacity planned for 2026 — the largest single-year pipeline in over two decades.

Clean1mo ago

Holcim Romania Signs EU Grant for First Eastern European CCS Hub

Holcim Romania signed a CINEA grant agreement on 26 March 2026 for Carbon Hub CPT01, the first large-scale onshore CCS project in Eastern Europe, targeting 2 million tonnes of near-zero cement annually by 2032.

Clean1mo ago

Econic and Changhua Open World's First CO2 Polyols Plant at 80,000 Tons

Econic Technologies and Changhua Chemical launched the world's first commercial CO2-based polyols facility in Lianyungang, China on March 26, 2026, targeting 80,000 tons of Carnol output in 2026 and one million tons annually at scale.

Freedom1mo ago

BIP446 and BIP448 Draft BIPs Target LN-Symmetry via OP_TEMPLATEHASH

Bitcoin's BIP repository merged BIP446 and BIP448 as Draft BIPs, introducing OP_TEMPLATEHASH and a Taproot-native covenant bundle that could replace Lightning's penalty-based channel model with LN-Symmetry.

Energy1mo ago

Pattern Energy's SunZia: 3,500 MW Wind Farm Approaches Commercial Operations

Pattern Energy's SunZia Wind project — 3,500 MW backed by $11 billion in financing — is poised to become the largest onshore wind project in U.S. history to enter commercial operations, with grid delivery targeted for early-to-mid 2026.

Energy1mo ago

Arevon Breaks Ground on $600M 250-MW California Battery Project

Arevon Energy started construction on the $600 million, 250-MW/1,000-MWh Cormorant Energy Storage Project in Daly City on March 24, 2026, under a long-term offtake with MCE serving 1.8 million customers.

Freedom1mo ago

Tails 7.6 Ships Automatic Tor Bridge Detection for Censored Users

Tails 7.6, released March 26, 2026, adds automatic Tor bridge detection via the Moat API, eliminating manual configuration for users in censored network environments — a structural upgrade for Bitcoin self-custody practitioners under surveillance.

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