Relentless Research
Investment Thesis
Relentless is a New York-based seed-stage venture capital firm founded in 2026 by Damir Becirovic, a decade-long veteran of Index Ventures who was promoted to Partner there in 2020. The firm is built around a single conviction: the best founders are doing their life's work, and they deserve a partner who commits fully rather than spreading attention across a large portfolio. Relentless positions itself as a high-conviction lead investor that deploys capital quickly, takes a board seat, and stays closely engaged with a small number of companies per fund rather than pursuing a volume-based, spray-and-pray strategy.
Stage Focus
Relentless focuses on the seed stage, including pre-seed and seed-extension rounds. The firm markets itself explicitly as a lead investor for founders who want a decisive, fast-moving partner at the earliest institutional round.
Check Size
Reporting is consistent that Relentless writes lead checks in the $2M-$5M range with reserves held back for follow-on participation. The firm also markets an ability to move with unusual speed, offering to commit up to $10M in as few as 10 days when conviction is high, which functions as both a differentiator and a filter for founders who want certainty over an extended, multi-partner diligence process.
Lead Tendency
Relentless leads. Both publicly confirmed investments to date, DiligenceSquared and Advocacy, were led rounds, consistent with the firm's stated preference to be the primary institutional partner rather than a passive participant.
Recent Activity
Relentless closed its debut Fund I at approximately $80M around May 2026, shortly after Becirovic's departure from Index Ventures. The fund began deploying almost immediately:
- March 2026: Led the $5M seed round for DiligenceSquared (YC Fall 2025), an AI platform that uses voice agents to conduct expert and customer interviews for private-equity commercial due diligence, with participation from Y Combinator, Amino Capital, Founder Factory, Multimodal Ventures, and Twenty Two Ventures.
- March 2026: Led the $3.5M seed round for Advocacy, an AI-native litigation workspace that creates a persistent, context-driven memory layer connecting case research, evidence, drafting, and strategy for litigation teams, with participation from Relativity Labs, Fenwick & West, and legal scholars and litigation partners.
Both deals closed within weeks of the fund's close, suggesting the fund is actively and quickly deploying capital rather than sitting on dry powder.
Portfolio Highlights
Relentless is a debut fund with a small, high-conviction portfolio to date:
- DiligenceSquared (diligencesquared.com) - AI-powered commercial due diligence and market research platform for private equity and investment firms, serving clients representing more than $2T in combined AUM.
- Advocacy (advocacy.ai) - AI-native litigation workspace built by litigators and engineers with backgrounds at Meta, Dropbox, and PayPal; its "Axiom" case-memory architecture organizes evidence, research, and strategy for high-stakes litigation teams.
Both companies are AI-native, enterprise-facing software businesses selling into professional services buyers (private equity and law), which sits somewhat apart from the consumer, marketplace, and creator-economy thesis Becirovic was known for at Index (where his attributed bets included Discord, Patreon, Outschool, and Rec Room). This suggests Relentless's actual seed thesis in market may be broader than "consumer/marketplaces," extending into AI-native enterprise software for traditionally services-heavy, offline-adjacent industries (legal, private equity) — a pattern consistent with backing founders solving operationally complex problems with AI regardless of end-market label.
Team
- Damir Becirovic, Founding Partner - Spent roughly ten years at Index Ventures (joined 2014, promoted to Partner in November 2020) before founding Relentless in 2026. At Index, his focus areas included marketplaces, consumer and community platforms, the creator economy, and software for traditionally offline industries and services; he is credited with early involvement in bets including Discord, Patreon, Outschool, and Rec Room. He has also been described as an unusually accessible investor, offering direct 1:1 sessions with founders outside formal pitch processes.
Public reporting is inconsistent on whether Relentless has additional named partners; one lower-confidence source references a second co-founder, but this is not corroborated by Crunchbase or LinkedIn, both of which currently list Becirovic as the firm's sole Founding Partner. Team composition should be treated as provisional pending firmer sourcing.
Decision Process
Not independently confirmed. Given the firm's single confirmed partner and its marketing around unusually fast (as-fast-as-10-day) decisions, a lean, founder-led decision process is plausible, but this is inferred rather than sourced and is left unset in structured fields.
Founder Preferences
Relentless's own language emphasizes founders who are "doing their life's work" — implying a preference for mission-driven, high-conviction founders over more opportunistic operators. Its first two portfolio bets both involve founding teams with strong pedigree (YC-backed, and ex-Meta/Dropbox/PayPal engineers and practicing litigators) tackling operationally complex, expertise-heavy domains (private equity diligence, litigation) with AI-native products.
Geographic Focus
Relentless is headquartered in New York, with reported dual presence in New York and San Francisco, and invests primarily in US-based companies.
Notes on Sourcing
Relentless's own website (relentless-investments.com) renders as a client-side single-page application with no crawlable content beyond the wordmark "RELENTLESS," so this research is built entirely from third-party sources: trade press (TechCrunch, Venture Capital Journal), funding announcement coverage (PR Newswire, AlleyWatch, JustAINews), and investor-database aggregators (Crunchbase, LinkedIn, Tracxn). Note that a separate, unrelated firm also trades under a similar name ("Relentless VC" at relentless.ventures, with portfolio companies Showroom B2B and ofScale) — that firm's data has been deliberately excluded from this profile to avoid conflation.