Led · Series A · Feb 2026

Founded in 2022 by former In-Q-Tel CTO Ravi Pappu, Apeiron Labs develops three-foot-long, 20-pound autonomous underwater vehicles (AUVs) capable of cycling 400 m up and down the water column once or twice per day to sample temperature, salinity and acoustics. Each AUV links to a cloud-based operating system that predicts resurfacing points, uploads sensor readings and refines ocean models on every dive. The cylinders can be launched from boats, airplanes and existing U.S. Navy launchers, allowing rapid, low-cost deployment in lines or arrays spaced 10–20 km apart for high-resolution coverage. Apeiron sells the data and hardware to both civilian markets such as fisheries, offshore wind developers and meteorologists, and to defense customers interested in persistent maritime monitoring. Pappu says the system already reduces the cost of ocean data collection by 100-fold and aims to achieve a 1,000-fold reduction next year. The company positions itself as a “CubeSat for the ocean,” envisioning fleets of dozens or hundreds of units providing continuous sensing. To date, Apeiron Labs has secured $29 million in venture financing, most recently closing a $9.5 million Series A round to scale manufacturing and sales of its AUVs.

Participated · Series B · Dec 2023

AM Batteries develops throughput dry-electrode manufacturing technology for lithium‑ion batteries that eliminates solvent recovery and electrode drying. Its dry-electrode approach can reduce a battery plant's energy consumption by more than 40%, save up to 40% in electrode-manufacturing capital expenditures, and lower the plant's carbon footprint by nearly 40%. The company's future-proof manufacturing technology can be leveraged for multiple types of battery-electrode fabrication. Led by CEO Lie Shi and based in Chelmsford, MA, AM Batteries intends to use new funding to accelerate commercialization of its dry battery electrode technology. The company raised $30M in a Series B round, bringing total funding to $60M. AM Batteries develops a solvent-free dry-electrode manufacturing platform for lithium-ion batteries that uses electrostatic spray deposition to coat cathode and anode materials onto metal foil without solvents or energy-intensive drying. The company says its technology eliminates solvent recovery and drying and can reduce a battery plant's energy consumption by 50% and save 40% of capital equipment in electrode manufacturing; the press release also claims the approach can enable an order-of-magnitude reduction in factory footprint and energy consumption when scaled. AMB highlights potential battery performance benefits from the dry process, including faster charging, higher energy density, and improved safety. Within one year of operation since its seed financing, AMB demonstrated a roll-to-roll coating pilot line with industry-matching electrode performance. The company plans to scale production capabilities, advance its roll-to-roll pilot to a production-grade line for customers, expand its team, and extend the dry-electrode platform to new chemistries and solid-state batteries. AMB was founded in 2016 and is headquartered in Acton, MA, focused on commercializing its solvent-free electrode manufacturing for EVs, grid storage, and consumer electronics.

Led · Series C · Aug 2023

Sortera Technologies is referenced in the article as a technology company, but no information is given about its core product, target customers, or industry segment. The Reuters piece only notes that the firm has completed a new financing round and does not elaborate on its operational model or future roadmap. Key operating metrics such as revenue, customer count, or profitability were not disclosed. Similarly, no information on the company’s founding date, leadership team, or geographic headquarters is provided. The announcement strictly centers on the fundraising event, leaving other aspects of the business unaddressed.