# SLB: portfolio, investments and team > SLB is a corporate vc based in United States. 5 investments on record, latest Oct 2025. Portfolio, stages, co-investors and team. Source: https://millionrounds.com/fund/slb (Millionrounds; every figure on the page links to its filing or article) United States · [Investor](https://millionrounds.com/investors) # SLB Last cheque observed Oct 2025. Silence since then is not evidence of inactivity: our sources miss unannounced rounds. Quiet Corporate VC Series B Series A Series C Energy Finance Energy Cheques on record **0%** of best year **0** **cheques in 12 months**, 5 on record Since the last cheque **390** days **00** hrs **00** min **00** sec Median round **$18M** Rounds led **1 of 5** Mostly in **United States, 80%** Pitch SLB ## SLB highlights - 01 5 rounds on record - 02 Mostly Series B and Series A: 60% of its rounds - 03 Led 1 rounds ## What they do - **Type:** Corporate VC (from a list, unverified) - **Cheque size:** Not stated - **Sectors:** Energy Finance Energy - **Based in:** Houston, United States - **Cold pitches:** Not stated ## The record Every round we can evidence, newest first **5 appearances** - **2025** 1 round - **Oct** **[Immaterial](https://millionrounds.com/company/immaterial)** Series A · GB · Firms' own news pages **$18M** *Led* - **2011** 3 rounds - **Oct** **[Contour Energy Systems](https://millionrounds.com/company/contour-energy-systems)** Series C · US · finsmes.com **$20M** With 5 others - **Jun** **[Liquid Robotics](https://millionrounds.com/company/liquid-robotics)** Series D · US · finsmes.com **$22M** With 1 other - **Mar** **[Samplify Systems](https://millionrounds.com/company/samplify-systems)** Series B · US · venturebeat.com **$11M** With 3 others - **2010** 1 round - **Feb** **[Contour Energy Systems](https://millionrounds.com/company/contour-energy-systems)** Series B · US · altassets.com **$14M** With 3 others An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor. ## The team We hold **12** people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them. ## The cheque Series B Series A Series C Median round joined **$18M** the round, not its cheque Led 1 of 5 rounds **20%** - **Sole investor:** Never alone - **Last cheque:** Oct 2025 Rounds by stage said on their site - Series B *2* - Series A *1* - Series C *1* - Series D *1* Cheques by month Led Joined Nov 2023 Oct 2026 Often in the room with - [CMEA Ventures](https://millionrounds.com/fund/cmea-capital) 2 - [Harris & Harris Group](https://millionrounds.com/fund/harris-and-harris-group) 2 - [U.S. Venture Partners](https://millionrounds.com/fund/u-s-venture-partners-usvp) 2 **Pitching SLB?** Put them on your fundraising board with this record on the card, and follow them to hear when they write a new cheque. Add to your CRM *→* ## Who they invest alongside The investors most often in the same rounds as SLB. A count of rooms they were both in, not a relationship either has claimed. [**CMEA Ventures** VC firm **2** rounds together](https://millionrounds.com/fund/cmea-capital)[**Harris & Harris Group** Growth equity **2** rounds together](https://millionrounds.com/fund/harris-and-harris-group)[**U.S. Venture Partners** VC firm **2** rounds together](https://millionrounds.com/fund/u-s-venture-partners-usvp) ## Recently backed The latest companies SLB put money into. [**Immaterial** $18M · Oct 2025](https://millionrounds.com/company/immaterial) ## Quick answers about SLB ### What does SLB invest in? SLB invests most often at Series B and Series A (60% of the rounds on record), in sectors such as Energy, Finance and Energy. ### How active is SLB? 5 investments on record, 0 of them in the last 12 months, and it led 1. The most recent was in Oct 2025. ### What has SLB invested in recently? Its most recent investments on record: Immaterial (Series A, Oct 2025). ### How big are SLB's cheques? The median round it joins is $18M. ### Does SLB lead rounds? Yes: it led 1 of its 5 investments on record (20%). ### Where does SLB invest? Most of the companies it backs are in the United States (80%) and the United Kingdom (20%). ### Is SLB investing now? No investments in the last 12 months; the latest was in Oct 2025. ### Who does SLB invest alongside? Most often CMEA Ventures (2 rounds together), Harris & Harris Group (2 rounds together) and U.S. Venture Partners (2 rounds together). ## Raising now? Find the investors who back rounds like yours, and keep every conversation on one fundraising board. Find similar investorsOpen your CRM Built from the rounds we watched, its filings and its own website, refreshed every night. [How we count](https://millionrounds.com/methodology) · [Report a correction](https://millionrounds.com/corrections?slug=slb) · [Is this your firm? Claim it](https://millionrounds.com/claim?org=slb)