Konstantine Buhler

Who they are

Konstantine Buhler is a Partner at Sequoia Capital — holds board seats at Waymo, Verkada, and XBOW, and came up through a dual Stanford MS/MBA before a stint at Citadel Securities.

Person

Konstantine joined Sequoia in December 2019, stepping into one of the most recognizable names in venture at a moment when the firm was still under Roelof Botha's stewardship and well before its current AI-first reorganization. Before that, his path ran through finance and deep tech: a Partner/Board Member role at Citadel Securities, then board exposure at Waymo and Verkada — autonomous vehicles and physical security, both hardware-heavy, high-stakes bets. He holds a Master of Science and an MBA from Stanford, a dual credential that straddles the engineering and finance worlds. His portfolio board seats — Waymo, Verkada, and XBOW — cluster around physical-world AI and defense-adjacent technology, not the pure software plays that define most VC partners. The through-line is a conviction in deep technology: companies where the hard part is atoms, not just algorithms. Possibly — his content themes (deep tech, AI, venture investment) suggest he's an internal voice on infrastructure and frontier bets, though his public writing signal is minimal.

Company

Sequoia closed a $7 billion expansion fund in April 2026 — its largest-ever late-stage vehicle, nearly double the $3.4 billion fund from 2022 — targeting AI infrastructure, foundation models, and robotics across the US and Europe. The raise came under fresh leadership: Alfred Lin and Pat Grady became co-stewards in November 2025, succeeding Roelof Botha, and Doug Leone returned as Chairman in April 2026 alongside the fund announcement. The firm has been deploying aggressively: 126 investments in 2025 and 44 more by May 2026, including participation in Anthropic's funding round at a reported $350 billion valuation. Sequoia also launched $950 million in new seed and venture funds for early-stage startups in 2026, signaling it's moving at both ends of the capital stack simultaneously.

Market

Sequoia competes directly with a16z, Accel, General Catalyst, Founders Fund, Lightspeed, and Bessemer for the most sought-after AI deals — a cohort that has collectively flooded into foundation model and infrastructure bets. The firm has made a deliberate structural bet on AI being a once-in-a-generation shift, backing both OpenAI and Anthropic simultaneously, and has publicly argued that traditional SaaS is ending as AI agents replace software tools with outcome-based pricing. Geopolitical pressure shaped the firm's architecture: Sequoia split into three independent entities — Sequoia Capital (US/Europe), HongShan (China), and Peak XV Partners (India/Southeast Asia) — in June 2023, citing regulatory complexity and brand confusion.

Network

Konstantine's named network traces through his board seats: Waymo (autonomous vehicles), Verkada (physical security infrastructure), and XBOW (defense tech). No direct edges to named individuals are available from the claims, but his co-partners at Sequoia include Alfred Lin and Pat Grady, who now co-steer the firm.

Alfred Lin· Co-steward / Managing Partner, Sequoia Capital
Pat Grady· Co-steward / Managing Partner, Sequoia Capital
Doug Leone· Chairman, Sequoia Capital

How they likely show up

Long tenure at Sequoia (joined December 2019, still Partner today) → likely thinks in multi-year conviction cycles, not deal-by-deal opportunism.
Board seats at Waymo, Verkada, and XBOW — all hardware-intensive, physical-world companies — → gravitates toward complexity that software-only investors won't touch.
Dual Stanford MS (Engineering/Technology) and MBA → comfortable switching between technical diligence and financial structuring in the same conversation.
Previous role at Citadel Securities before moving into venture → has seen how institutional capital moves at scale; likely brings rigorous quantitative framing to risk and portfolio sizing.
Possibly — minimal public writing signal → prefers to operate through board relationships and internal conviction rather than thought-leadership content or public positioning.

Conversation tips

→ Come with a specific technical thesis, not a market-size slide — his portfolio (Waymo, XBOW, Verkada) signals he responds to companies where the hard part is engineering, not distribution.
→ Reference Sequoia's AI infrastructure thesis directly — the $7B fund's explicit focus on high-compute infrastructure is a live frame for him right now.
→ Don't treat him as a generalist VC; his Citadel Securities background means he can engage with quantitative and financial modeling in depth — match that register if you can.
→ Ask about the physical-world AI angle specifically — his board pattern is a strong signal of where his conviction lives, and it's a differentiating view inside Sequoia's broader AI push.

Toolbox

Openers

Open on XBOW — it's a defense-tech board seat that stands out sharply against a VC landscape crowded with enterprise SaaS bets; it signals where his conviction diverges from the herd.
Reference the $7B fund's explicit focus on high-compute AI infrastructure — this is the live strategic frame at Sequoia right now and it maps directly onto his deep-tech portfolio thesis.
Bring up the Waymo board seat — autonomous vehicles have had a long, capital-intensive arc and he's been in the boardroom through it; there's a real story there about patience and physical-world bets.

Discovery questions

Your portfolio clusters around physical-world AI — Waymo, Verkada, XBOW — rather than pure software. How do you think about conviction sizing when the risk profile is atoms-plus-bits versus software alone?
Sequoia's new fund is explicitly targeting high-compute infrastructure and robotics. Where do you see the boundary between infrastructure bets worth backing now versus ones where the market timing is still too early?
You came from Citadel Securities before moving into venture — how does that institutional capital lens change the way you evaluate a company's path to scale versus a partner who came up purely through startups?

Avoid

Don't lead with consumer or pure SaaS pitches — his entire board portfolio is deep tech and physical-world AI, and a software-only framing will signal you haven't done the work.

Make it yours