Boston has one of the oldest nanny-agency markets in the country — and a thinner one than the "best of Boston" lists suggest. Several longtime names have quietly closed in recent years, the survivors increasingly specialize by geography or candidate type, and no single agency covers the city, MetroWest, and the South Shore with equal depth. A Beacon Hill family and a Wellesley family calling the same agency are often drawing from different benches, or the wrong one.
This guide covers who actually operates in Boston in 2026, what they charge based on their published fee schedules, and how to evaluate an agency before wiring a non-refundable engagement fee. For how agencies work nationally — screening standards, guarantee structures, fee mechanics — start with our complete guide to nanny agencies.
Boston nanny agencies charge 15–20% of first-year gross salary, and $7,500 minimums are common — on Boston salaries of $52,000–$87,000, expect $7,500–$17,000 plus a $250–$500 engagement fee. No single agency covers the whole metro, so the most effective approach is coordinating across several agencies and referral networks at once. Beverly does that coordination for you, with one point of contact.
Types of Nanny Agencies in Boston
Boston's market splits less by neighborhood than Chicago's or New York's and more by candidate type and service model. Four categories cover nearly everything a family will encounter.
Established Placement Agencies
Boston Nanny Centre, based in Newton, has run placements in Greater Boston for over 30 years and is the market's reference point for the traditional model: a vetted roster, an in-depth family intake, and a percentage fee. Its published structure is a $500 engagement fee plus 18% of the nanny's total gross annual compensation, with a $7,500 minimum, backed by a 90-day replacement policy. On a $75,000 MetroWest salary that is a $13,500 placement fee.
Boutique Agencies for Career and College-Educated Nannies
Sommet Nannies was founded in Boston and specializes in college-educated career nannies, now placing in Chicago, D.C., and New York as well. Its fee is 20% of the candidate's total gross annual compensation, with a $500 engagement fee collected before the initial consultation. The pitch is a smaller, more selective bench — expect higher candidate salaries and a longer intake conversation.
Household Staffing Firms
The Washburn Agency places nannies alongside housekeepers, family assistants, and estate staff from its Boston base, and is a natural fit when the role blends childcare with household management. Washburn charges a search fee regardless of whether you ultimately hire through them, and pegs the going Boston rate for an experienced full-time nanny at $32–$40+ per hour. Tiny Treasures, a New York agency with a Boston operation, publishes tiered pricing: a $250 launch fee, then 15% of gross annual salary for a 90-day guarantee or 20% for a 180-day guarantee, with newborn care specialists at $35–$60/hr placed at 20% of total compensation.
Online Platforms and Community Networks
Care.com, UrbanSitter, and Sittercity all have deep Boston pools at $30–$40 per month, and Boston adds a channel most cities lack: university job boards and graduate-family listservs that surface strong part-time candidates. The tradeoff is unchanged — you run all screening, reference checks, and background verification yourself. Neighborhood parent groups in Cambridge, Brookline, and Jamaica Plain remain the city's most productive referral channel for experienced nannies changing families.
What Nanny Agencies in Boston Typically Charge
Boston nannies earn $25–$42 per hour, which puts full-time first-year salaries at roughly $52,000–$87,000. Agency fees compound from there.
| Fee Type | Typical Range | What's Included |
|---|---|---|
| Placement fee (% of first-year salary) | 15-20% ($7,500-$17,000) | Sourcing, screening, replacement guarantee |
| Engagement / registration fee | $250-$500, non-refundable | Starts the search; credited by some agencies |
| Temporary and newborn care placements | ~20% of total compensation; NCS $35-$60/hr | Short-term contracts, overnight newborn care |
| Online platforms | $30-$40/mo | Candidate pool access, basic filters |
| Beverly coordination fee | See pricing | Multi-source search, screening, payroll setup |
Watch the guarantee tiers: the same agency may charge 15% for a 90-day replacement window and 20% for 180 days. That 5-point spread is roughly $3,000 on a $60,000 salary — worth paying only if you have reason to expect turnover risk, like a role with unusual hours or a first-time employer household still calibrating expectations. For what the salary itself will run you, see our Boston nanny cost guide.
How to Evaluate a Boston Nanny Agency
Fee schedules are public; screening quality is not. These are the questions that separate Boston's serious agencies from the rest:
- Geographic bench: Ask which towns the agency actually placed in over the last six months. City-focused rosters thin out fast past Route 128, and a MetroWest specialist may have two candidates willing to commute to the Seaport.
- Screening depth and acceptance rate: In-person interviews, multi-step reference checks, and background checks should be standard. Quality agencies accept fewer than 30% of applicants onto their roster — ask for the number.
- September bench depth: Boston hiring peaks with the academic calendar. An agency that can show placements completed in August and September — not just spring — has the bench to compete in the city's toughest window.
- Massachusetts compliance fluency: The Domestic Workers Bill of Rights requires a written agreement, a Notice of Rights, timesheets, and workers' compensation at 16+ hours per week. A good Boston agency hands you a compliance checklist unprompted; one that shrugs at these questions is a red flag.
- Replacement guarantee terms: 90 days is the Boston standard; read what counts as a valid replacement claim and whether the guarantee is a re-search or a refund.
- Recent family references: Three families placed within the last six months, provided promptly and confidently.
- Total fee transparency: Engagement fee, placement fee, guarantee tier, and what happens to your money if the search fails — all documented before you sign.
See what a coordinated search looks like. The research is the easy part. In two minutes, watch how a Beverly coordinator runs the rest — agencies, screening, and contracts — so you don't have to.
Watch: Meet Beverly · 2 min →What a Boston Agency Search Actually Looks Like
The mechanics matter for planning, because the timeline dictates when you need to start. A typical full-time placement through a Boston agency runs four to six weeks end to end:
- Week 1 — Intake: A detailed family consultation covering schedule, duties, salary band, and household style. The engagement fee is paid here, so have your requirements settled before this call, not after.
- Weeks 1–2 — Shortlist: Most agencies present 3–5 candidates within 5–10 business days. Fewer than three usually signals a thin bench for your geography or schedule — a useful early warning.
- Weeks 2–4 — Interviews and trial days: Video screens, then in-home interviews, then a paid trial day or two. Massachusetts has no unpaid-trial gray area: trial hours are working time and must be paid at the candidate's full rate.
- Weeks 4–6 — Offer and start: The agency typically supports salary negotiation and reference verification. The written agreement, Notice of Rights, workers' comp, and payroll registration are usually your job — ask explicitly what the fee covers, because in Boston the answer is often "not this."
Add two to three weeks to every stage if you are hiring for a September start. The families who land their first-choice candidate in Boston's peak window are the ones interviewing in July.
Common Challenges with Boston Nanny Agencies
- The city–suburb divide: Most rosters skew city or MetroWest, rarely both. Families open to candidates from either side usually need two agency relationships — and two engagement fees.
- The September crunch: Lease turnover on September 1, arriving hospital fellows and faculty, and school starts hit at once. The strongest candidates receive multiple offers within days, and agency response times stretch exactly when you need speed.
- Minimums punish smaller roles: A $7,500 minimum on a $30,000 part-time placement is an effective 25% fee. For under-30-hour roles, platforms and referral networks usually price better.
- A thinner market than the lists suggest: Boston roundups still circulate names that no longer operate — Beacon Hill Nannies, a fixture of older "best of Boston" lists, is now closed. Confirm an agency is actively placing before paying any non-refundable fee.
- No cross-agency coordination: Agencies do not share candidates or de-duplicate searches. Running Boston Nanny Centre, Sommet, and a Care.com posting in parallel means three processes, three fee structures, and three definitions of "screened."
When a Boston Agency Is Worth the Fee
Pay the percentage when you are hiring one full-time role at the top of the market and time is your scarcest resource. At an $80,000 MetroWest salary, a $13,000–$16,000 fee buys a pre-vetted shortlist, salary negotiation support, and a guarantee — reasonable value for a household where both parents bill more than that in the weeks a self-run search would consume.
Skip the single-agency route when the role is part-time, your timeline is flexible, or you want the whole market rather than one roster. And if what you actually need is 30–45 hours of flexible coverage, run the numbers on an au pair in Boston first — Massachusetts wage law changes that math, but it can still cost half as much. For the full decision framework, our agency vs. private hire comparison lays out both paths.
Beverly vs. a Traditional Boston Nanny Agency
Beverly is not an agency. It is a hiring coordinator that runs your search across agencies, platforms, and referral networks at the same time — which, in Boston, directly solves the city–suburb divide and the single-roster problem.
| Feature | Traditional Agency | Beverly |
|---|---|---|
| Candidate source | Own roster only | Agencies + platforms + referrals |
| Fee structure | 15-20% of salary ($7,500+ minimums) | Subscription-based |
| Background checks | Varies by agency | Standardized for all candidates |
| MA compliance + payroll setup | Usually not included | Included |
| Geographic scope | City or MetroWest (rarely both) | All Greater Boston, multi-channel |
| Candidate overlap management | None across agencies | One coordinated pipeline |
The practical effect for a Boston family: a Boston Nanny Centre candidate, a Sommet career nanny, a Care.com applicant, and the referral from your Brookline listserv all flow into one process with consistent screening — and when you hire, the written agreement, Notice of Rights, timesheets, workers' comp, and payroll are set up to Massachusetts standards from day one. You manage one relationship instead of four, in a market where the best candidates are gone in days. For the search process end to end, see our complete nanny hiring guide.
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