The Venture Codex

Led · Seed · Aug 2026

Synthefy develops foundation models specifically for structured numerical data — data types such as tables, time series, transactions, sensor readings, and other numeric signals. Its flagship open-source model, Nori, is available under an Apache 2.0 license and the company says Nori ranks first across 130 public regression benchmarks; Synthefy reported almost 600K Nori model downloads and about 5,000 Python installations in the weeks after launch. The platform is designed for enterprise deployment with options including an open model, managed API, enterprise platform, and on-premise deployments integrated with AWS, Databricks, Snowflake, and Google Cloud. Synthefy positions its models as smaller, purpose-built architectures that require less compute and energy than large general-purpose language models. Targeted use cases cited include demand forecasting, pricing optimization, fraud and risk detection, infrastructure failure prediction, and operational improvements across retail, financial services, telecommunications, infrastructure, healthcare, and defense. The company was founded in 2023 and the team includes former engineers and researchers from Meta, Nvidia, Adobe, Uber, and top academic institutions.

Participated · Series D · Aug 2026

Obsidian Security offers a security and runtime governance platform focused on protecting non-human identities, data, and AI agents operating within third-party enterprise applications. The platform provides real-time protection and agent access governance across services such as Anthropic Claude, Microsoft Copilot, and OpenAI. It inventories MCP servers and LLM deployments to detect and block privilege escalation, excessive data access, and policy violations. The company is led by CEO Hasan Imam and is headquartered in Palo Alto, CA. Following the $85 million Series D, Obsidian plans to expand its platform capabilities and consolidate its market position.

Led · Series A · Jul 2026

Bespoke Labs builds realistic environments that simulate company infrastructure—codebases, microservices, logs, tickets, email, and Slack—to train long-horizon AI agents. The company emphasizes a research-first approach, staffed by research scientists and engineers rather than contractor-driven teams. Bespoke Labs contributes to open benchmarks and datasets such as Terminal-Bench and OpenThoughts and develops techniques like the Genetic‑Pareto Agent Optimizer (GEPA) for automated prompt and policy search. Its customers use the platform to train, evaluate, and optimize agents, and the company focuses on environment curation, synthetic environment generation, and snapshotting real-world infrastructure. Founded in 2024 by Mahesh Sathiamoorthy and Alex Dimakis, Bespoke Labs is based in Mountain View and recently raised $40 million to scale research, infrastructure, and business efforts.

Participated · Series C · Jun 2026

AttoTude is developing a next-generation interconnect platform that combines advanced ASIC signal generation with low-loss dielectric waveguides to enable per-lane data rates of 200G, 400G, and 800G. The company positions its ASIC over Dielectric architecture as a mid-range connectivity solution that aims to overcome limitations of conventional copper interconnects while avoiding some cost, power, and complexity challenges associated with optical technologies. AttoTude plans to transition its technology from discovery to product development, with first product demonstrations slated for this fall and work underway to build prototypes and a scalable supply chain. Financially, the company has raised $52 million in Series C funding, bringing its total funding to $143 million. AttoTude was founded by Dave Welch and Joy Laskar and is headquartered in Menlo Park, California.

Participated · Series A · Jun 2026

Billables AI provides an AI-native operational intelligence platform that passively captures work activity, generates billing narratives, and delivers time capture, billing optimization, productivity and workflow insights for law firms. The platform integrates via secure APIs with productivity tools such as Microsoft 365, Google Workspace, Zoom and Adobe, as well as law practice management platforms including Centerbase, Litify, SurePoint, 8am/MyCase, Clio and LeanLaw. The company emphasizes privacy and security by avoiding screenshot or screen-monitoring approaches in favor of API integrations. Billables AI serves hundreds of law firms—particularly midmarket practices—and aims to surface operational data to support pricing, staffing and AI governance decisions. Founded in 2023 and based in San Francisco, the company recently won “Legal Tech Company of the Year” at the 2026 Legalweek Leaders in Tech Law Awards. Financially, it raised $3.9 million in seed funding in 2024 and closed a $10.2 million Series A in 2026 to fund R&D, go-to-market expansion and partnership growth.