Where is Weights & Biases headquartered?

Weights & Biases is headquartered in San Francisco, CA. The most commonly reported address in company databases is 640 Post Street, San Francisco, CA 94109 (a prior address of 1479 Folsom Street also appears in some records). San Francisco is the anchor for the leadership team, including General Manager Lukas Biewald and all VP-level and C-level executives, positioning the company within the world's densest cluster of AI research labs, enterprise AI buyers, and ML engineering talent.

Since the CoreWeave acquisition in May 2025, W&B's corporate parent is headquartered in Livingston, NJ (CoreWeave HQ). However, W&B's operational base remains San Francisco, and the product roadmap, engineering leadership, and daily decision-making continue to run from the San Francisco office and the distributed remote workforce. The acquisition has not relocated the functional headquarters.

Note: address data for private and recently-acquired companies can lag in public databases. The 640 Post Street address appears in the majority of public company records as of 2025–2026, but vendors should verify directly with W&B or CoreWeave for formal mailing or legal correspondence purposes.

Beyond San Francisco, W&B has reported employee presence in New York and operates an explicitly remote-first workforce spanning more than 20 countries. The company does not publicly maintain a list of dedicated satellite offices; instead, employees work from home or co-working spaces globally, with the San Francisco office serving coordination rather than daily attendance functions.

The remote-first model was formalized during W&B's growth phase and is a deliberate talent and culture strategy. By not requiring co-location, the company can hire senior ML engineers and researchers globally — including in the UK, France, Germany, Canada, India, and Australia, where AI research talent concentrations exist but San Francisco relocation is impractical. This distributed structure is reflected in the employee footprint spanning 4 continents as of 2025.

Post-CoreWeave acquisition, W&B employees may gain access to CoreWeave's office footprint in New Jersey and other locations. However, W&B's operating culture and physical footprint are expected to remain San Francisco-anchored under Lukas Biewald's leadership as General Manager.

For sellers, the highest-density buyer concentration is in the Bay Area — San Francisco, South Bay, and Peninsula — where AI labs, hyperscalers, and enterprise tech companies that use W&B are clustered. Field events (executive dinners, user meetups, ABM campaigns) generate the highest ROI when run in San Francisco. New York is the secondary hub for financial services and enterprise AI buyers.

Because W&B operates across 20+ countries with a distributed engineering culture, EMEA and APAC seller motions are viable: European AI labs in the UK, France, Germany, and Netherlands and APAC companies in Japan, South Korea, and Australia all appear in the W&B customer base. However, procurement for global accounts typically routes through San Francisco-based stakeholders, so treat the Bay Area as the primary closing location even for international accounts.

For account-based marketing, the most effective digital channels reach W&B engineers where they already operate: the wandb.ai platform itself, GitHub (W&B's SDK is embedded in 20,000+ open-source repos), Hugging Face, and ML-focused communities on Discord and Reddit. Physical presence in San Francisco for major AI conferences (NeurIPS satellite events, MLOps World, Fully Connected) maximizes face time with W&B's leadership and engineering teams.