Connecticut Cambridge Advisors

Founder Bill McMahon anchors the investment committee and remains the primary portfolio manager. The firm has historically operated with a small team, meaning McMahon directly shapes asset-allocation policy and tax-loss harvesting schedules for every household on the platform. No external investment sub-advisor has been disclosed in public filings.

Connecticut Cambridge Advisors charges asset-based advisory fees and does not manufacture proprietary funds. This fee-only, fiduciary structure means it can allocate to third-party vehicles — historically Dimensional Fund Advisors, Vanguard, and PIMCO — without revenue-tiering pressure. The absence of a proprietary product shelf keeps manager selection tied to a client's tax basis, not a profit-and-loss target.

The firm's book concentrates on business owners, professionals, and multi-generational families across New England, particularly along the Hartford-to-Boston corridor. Many arrive with a liquidity event — a company sale or a concentrated equity position — and require coordinated estate planning across trusts, charitable remainder structures, and 1042-exchange vehicles. The firm has publicly described its client base as intentionally small in number, consistent with a high-touch, tax-sensitive service model.

When private markets appear, they typically arrive through registered interval funds or tender-offer funds rather than traditional drawdown-commitment vehicles. This structure preserves liquidity and simplifies quarterly tax reporting for taxable families. The firm has not publicly disclosed specific private-fund commitments, but public record indicates use of streamlined access vehicles that fit inside IRAs and trust accounts.

Tax management is the operational center of the firm. The team runs individual municipal-bond ladders attuned to Connecticut and Massachusetts state income-tax rates and has increasingly adopted direct-indexing technology. When a client carries a concentrated equity position, the firm coordinates with estate attorneys and tax counsel on structured diversification plans — sometimes spanning multiple tax years — rather than executing a single large-block sale.

Connecticut Cambridge Advisors hosts quarterly family-education sessions designed to bring adult children into trust-governance discussions before a wealth transfer occurs. The process focuses on legal and tax mechanics — revocable versus irrevocable trust structures, investment-policy statement design, and the behavioral discipline required to avoid forced liquidation during drawdowns — rather than on aspirational wealth-coaching themes.

It is a registered investment advisor that serves multiple unrelated families but operates with the concentration and service model of a small multi-family office. The client count is deliberately compact, and the service stack — direct portfolio management, estate-planning coordination, and generational education — mirrors what a dedicated single-family office would deliver, absent the balance-sheet overlay of a private trust company.