Side-by-side comparison of AI visibility scores, market position, and capabilities
AI platform automating R&D tax credit documentation and filing for 500+ businesses; $12M Series A from Vertex Ventures and ADP Ventures with YC W23 backing targeting under-claimed $20B annual credit market.
SPRX is an Austin, Texas-based AI-powered R&D tax credit platform that automates the documentation, calculation, and filing of federal and state research and development tax credits for businesses — replacing the manual, spreadsheet-heavy process that CPAs and tax advisors use with an AI system that analyzes employee time data, project records, and qualifying expenses to identify and document eligible R&D activities. Founded in 2023 and a Y Combinator Winter 2023 graduate, SPRX raised $12 million in a Series A in October 2024 led by Vertex Ventures US with participation from Restive Rebels and ADP Ventures, serving 500+ companies with 25 employees.
$500M Series D at $11B valuation (Feb 2026) — largest voice AI funding round ever. $330M ARR; 1M+ developers using the API. Enterprise customers: Deutsche Telekom, Revolut, Meta, Salesforce. Voices in 32 languages; real-time cloning from 1 second of audio.
ElevenLabs was founded in 2022 by Piotr Dabkowski and Mati Staniszewski, two former Google and Palantir engineers who set out to break the language barrier using AI voice technology. The company specializes in AI-powered voice synthesis, cloning, and dubbing, enabling developers and enterprises to generate human-quality speech in over 30 languages. Its core technology combines deep learning models trained on massive speech datasets to produce natural-sounding voices indistinguishable from real humans.\n\nElevenLabs offers a suite of products including its flagship text-to-speech API, voice cloning tools, and an AI dubbing platform that localizes video content while preserving the speaker's original voice. Its products target a broad audience—from indie developers building audio apps to large enterprises deploying voice interfaces at scale. Key differentiators include ultra-low latency streaming synthesis, fine-grained voice customization, and a growing library of pre-built AI voices across accents and styles.\n\nElevenLabs has grown rapidly, surpassing $330M in annualized revenue and serving over 1 million developers. Enterprise clients include Deutsche Telekom, Spotify, and leading media companies. In February 2026, the company closed a $500M Series D at an $11B valuation, cementing its position as the market leader in AI voice. Its APIs power podcasts, audiobooks, video games, and customer service bots worldwide, making ElevenLabs the default infrastructure layer for AI-generated audio.
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