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Building Automation & Energy Management — Boston, MA

Buildings that perform.
On your terms.

Entensiv is an owner's representative building technology firm. We work for you — not the controls manufacturers — to optimize performance, reduce energy, and make your systems work smarter.

Our Services Start a conversation
2015
Established
30+
BAS Experts
All
Major BAS Platforms
Trusted by
What We Do

Three disciplines.
One trusted partner.

From day-to-day system management to ground-up construction, our services are designed around your building — not a product line.

Operations

Brand Agnostic

Ongoing management and optimization of your building automation systems — regardless of manufacturer. We monitor, analyze, and tune your BAS to peak performance.

Remote monitoring & alarm management
Energy analysis & optimization
Analytics and reporting dashboards
All major platforms supported

Maintenance

Brand Agnostic

Preventive and corrective maintenance programs tailored to your facility's needs. Our certified technicians keep your systems reliable and your downtime minimal.

Scheduled preventive maintenance
Emergency service & rapid response
Multi-platform troubleshooting & repair
HVAC controls calibration & tuning

Construction

New Build & Retrofit

Owner's representative BAS services for new construction and renovation projects — from controls specification through commissioning and handoff.

BAS design & controls specification
Owner's rep through design & construction
Commissioning & functional testing
New build and phased retrofit migrations
Our Approach

Aligned with owners.
Not manufacturers.

Most BAS service companies are tied to a product line. We're not. Our allegiance is to the building owner — which means honest recommendations, not upsells.

Brand-Agnostic Service

We support all major BAS platforms — so you're never locked into a single vendor's service model or forced into unnecessary system replacements.

Data-Forward Operations

We leverage analytics and dashboards to surface insight you can act on — not just alarms to acknowledge. Your operational data should work for you.

Cross-Functional Expertise

Our team combines HVAC controls engineers, software specialists, and energy analysts — so complex integrations don't require a cast of separate vendors.

We act as an owner's representative in an increasingly complex building technology world — providing unbiased guidance when the stakes are high.

— Entensiv founding principle
Project Highlights

Work that speaks for itself.

A selection of engagements across higher education, healthcare, and commercial facilities.

Higher Education
Labratory

Harvard University — Major Lab Addition

Engineered and installed Distech based BAS for a 6 story wet labrartory additon, integrating seemlessly into existing Siemens Desigo BAS infrastructure.

Seemless integration across platforms
Unified alarm management & monitoring, SPOG
Significant reduction in vendor fragmentation
Controls Migration
Manufacturing

Siemens → Distech Controls Platform Migration

Led a complex controls platform transition — preserving operational continuity while modernizing BAS infrastructure with a detailed phased cutover plan.

Zero-downtime cutover strategy
Full documentation & ACC configuration
Staff training & commissioning support
Critical Facilities
Vivarium

Biomedical Research Facility — Mission-Critical Operations

BAS operatation & ongoing management for 3M+ sq ft of biomedical research space, including ABSL labs, animal vivariums, and NMR/MRI.

3M+ sq ft under active management
ABSL-3 & vivarium environmental control
24/7 Montioring and Operation
Higher Education
Labratory

Boston University — Clinical Skills Labratory

Engineered and installed Distech based BAS for a labratory fit-out, integrating seemlessly into existing Johnson Controls BAS infrastructure.

Dedicated CHW / Chiller system
Full pressure control with air valves
Lab performance dashboard
Cloud Integration

Centralized Alarm Management via MQTT & AWS IoT

Architected a cloud-based alarm aggregation system pulling from multiple Niagara-connected buildings — no custom on-premise middleware required.

Multi-building alarm unification
AWS IoT Core managed infrastructure
Niagara / MQTT integration architecture
Analytics

Real-Time Energy Management & Reporting Platform

Developed a real-time energy management platform with automated reporting, predictive models, and operator-facing dashboards for a large research institution.

Non-linear regression prediction models
Automated reporting infrastructure
Operator & executive dashboard kiosks
Fume Hoods
Labratory

Fume Hood Testing and Repair

Testing and deficiency management of Fume Hood and and Bio-Safety Cabinets across multiple manufacturers.

Functional testing of 1,500+ Fume Hoods
Management of diagnosis and repair activties
Documentation of asset status and work control
Critical Monitoring
Healthcare

Dana-Farber CAMS Monitoring

24/7 Monitoring and Response of over 1,000 Cryogenic and Ultra Low freezers across multiple facilities in New England.

Reduntant monitoring and notification systems
Management of Moves, Adds, Changes
Dedicated BAS based on Siemens and Niagara
Controls Migration
Office

Large Phased Migration to Distech Controls

Engieered phased cut-over to modernized BAS while maintaining operation and minimizing occupant disruption

Strategic reuse of existing infrastructure / end devices
Standardization of sequences with focus on energy reduction
Full Recommissioning of HVAC Systems
Technology

Platform expertise, without platform bias.

We work across every major controls ecosystem — your service isn't tied to a single manufacturer's roadmap.

BAS Platforms →
Protocols & Integration →
Cloud & Analytics →
HVAC & Controls →
Building Automation Systems
Proficient across all major BAS platforms — enabling us to service, upgrade, or migrate any existing installation without requiring a full system replacement.
Distech Controls / ECY Siemens Insight / Desigo CC Johnson Controls Metasys / FX Schneider Electric EBO Tridium Niagara N4 Automated Logic WebCTRL Delta Controls
Our brand-agnostic model means we can service and optimize your existing investment — regardless of manufacturer.
Protocols & Integration
Deep fluency in building automation protocols and modern IoT integration patterns — enabling complex multi-system environments to communicate reliably.
BACnet IP / MSTPModbus TCP/RTUMQTTLON / LonWorksOPC-UAREST APIsSQL / ODBCSNMP
Integration work often reveals systemic gaps. We document, remediate, and future-proof.
Cloud & Analytics
Modern building operations demand cloud connectivity and actionable data. We architect solutions that bring your operational data where you need it.
AWS IoT CoreGoogle Cloud PlatformMetabase BIGoogle Apps ScriptMS SQL ServerOSI PITime-Series DatabasesCustom Dashboards
We favor managed cloud services that reduce long-term operational burden and scale with your portfolio.
HVAC & Mechanical Controls
Our technicians understand the mechanical systems behind the controls — enabling faster diagnosis and more effective tuning than pure software engineers.
AHU Controls & SequencingChiller Plant OptimizationVAV System BalancingLab PressurizationVivarium Env. ControlDDC ProgrammingEnergy ModelingCommissioning
We've managed HVAC controls for mission-critical environments including ABSL-3 laboratories and data centers.
Our Team

The people behind the work.

Our leadership team brings together decades of hands-on BAS experience across engineering, operations, and construction — backed by a team of 30+ specialists across Greater Boston.

Brian Barmmer

Brian Barmmer

Co-Founder

Founded Entensiv to help building owners leverage data analytics and emerging technology to get more from their automation systems — without the bias of a manufacturer relationship.

Energy AnalyticsBAS StrategyData & Integration
Dana Lentini

Dana Lentini

Co-Founder

Co-founded Entensiv with a focus on building a service model that puts the owner first — combining deep technical expertise with a commitment to honest, long-term partnerships.

Client RelationsService OperationsBAS Engineering
Shawn Hoskins

Shawn Hoskins

Director of Operations

Oversees day-to-day service delivery across Entensiv's client portfolio, ensuring our teams are responsive, well-resourced, and consistently delivering at the highest standard.

Service DeliveryField OperationsQuality Assurance
Scott Thomas

Scott Thomas

General Manager

Manages the business and operational functions of Entensiv, keeping projects on track and teams aligned across our service, engineering, and construction practices.

Business OperationsProject ManagementClient Success
Chris Webster

Chris Webster

Major Projects

Leads Entensiv's major project engagements — from complex platform migrations to large-scale multi-building BAS programs — serving as the primary technical lead and client contact.

Platform MigrationsMulti-Site ProgramsControls Engineering
Josh Vazquez

Josh Vazquez

New Construction

Leads BAS design and owner's representative services for new construction and retrofit projects, guiding clients from controls specification through commissioning and handoff.

New ConstructionControls DesignCommissioning
30+
Engineers & Specialists
15+
Years in Operation
All
Major BAS Platforms

One of New England's largest independent building automation firms — with the depth to handle complex, multi-building portfolios and the agility to move fast when it matters.

Careers

Join a team that does
things differently.

We're a small firm with a wide scope. If you want to work on genuinely complex building technology problems — without the bureaucracy of a large controls company — we should talk.

Broad Scope of Work

Our engineers work across every major BAS platform and building type — so you'll build deep, transferable expertise fast.

Small Team, Real Impact

You won't get lost here. Every person on the team makes a visible difference on every project we take on.

Owner's Side Always

We're not selling product. We're solving problems — and our engineers give honest advice that builds long-term client trust.

Senior BAS Service Engineer

Full Time

We're looking for an experienced BAS engineer to join our service team. You'll work across multiple platforms and client sites in the Greater Boston area — troubleshooting, optimizing, and building relationships.

Contact Now →

BAS Controls Technician

Full Time

Field-based role supporting service and maintenance across our client portfolio. Strong HVAC controls background required; multi-platform BAS experience preferred.

Contact Now →

Don't see a role that fits? We're always interested in hearing from experienced BAS engineers and technicians in the New England area.

Contact Now →
Contact

Let's talk about your building.

Whether you're troubleshooting a specific issue, evaluating a platform migration, or looking for a long-term service partner — we're happy to have a straight conversation.

Location

Boston, Massachusetts

Phone

617-903-8727

Serving

Greater Boston & New England